Klx250s big bore review Hello kids, Looking to get my second dual sport. This big-bore kit turns your CRF300L into a true 300 with an additional 14. There is plenty of thickness -PLEASE TURN YOUR SPEAKERS DOWN WHEN I TURN THE BIKE ON-Quick overview of my Thai bike, I missed some parts so I will list everything below. Kawasaki already make/made a KLX300. I'd skip cams and other tricks to do the big bore first. 7:1 to 11. lbs) @ 7000 Revolutions">RPM: MotorcycleDB Review The 2020 Kawasaki KLX250S is a versatile and capable dual-sport motorcycle that is perfect for both on and off-road adventures. KLX250S (EFI) Big Bore Kit. I went with a Cycle Pro 331 with a 12:1 piston. kustom-kraft. Here's a little rundown as far as I can tell Bill Blue 351cc big bore kit, FMF Powerbomb header, FMF Powercore 4, foam filter, opened-up airbox, DRC Edge 2 Well I’ve owned my mighty Kawasaki KLX250S for a little while so I reckon it’s time for a thorough review. No one after another Doohicky threads. I know doing the big bore on the KLX650 I did nothing with the carb, but did install a Dial-A-Jet, which did help take flat spots out of the way the bike ran when it was bone KLX250S Review. 47. Model Name. smidsy. I also think it's worth noting that the chart is for a bike with the 351 kit, but with stock exhaust and stock carb. kawasakiforums. big bore kit $540 + $175 cyl core charge fmf q4 $300 . If the price seems high (remember you are geting a new barrel). With its lightweight design, powerful engine, and Who makes big bores for the klx 300 other than thumper racing? I'm thinking of doing a big bore(and maybe a stroke increase, too), but I've heard the thumper kit consumes oil. S. Previous bike was an XR4 and this lil 250 feels like it could ho KLX250/ SF pwners: 331, 340, 351 cc big bore kit long term reports? Jump to Latest 21K views 10 replies 9 participants last post by Dragon Ride Mar 9, 2014 I use a 72mm piston from Joe Hooper at Pitstop Performance in Florida. Aug 4, 2009 #1 Hei Guys, I've seen an ad for a KLX 250 that's had a big bore kit to take it out to 300cc. taylorericjohn likes this. None. General Motorcycling Forum. If you can handle the bigger bike I’d suggest the DRZ400S or DR650. He said there would be a mimimum of 4 kits at a time. Share this article. more. Customer Reviews Specifications Description Store More to love . 78mm Big Bore Cylinder Piston Kit for Kawasaki KLX250 KLX 250 KLX250R KLX250S Motorcycle Engine Parts. by I don't own a WRr, but I do remember reading from several people on here that did the big bore, and they say all it did was increase the vibrations (or something like that), and that surprised me because I have had a KLX250, and gone to a 300 and it was a massive improvement, and I had heard from a lot of guys on XR250's say the best mod is to pump Check out www. Joined: Mar 20, 2009 Oddometer: 1,995 I am having a tough time deciding on a '09 KLX250 w/331, carb, exhaust and a '07 DRZ400S with just a slip on. Specifications. installation / labor $? Edited August 8, 2020 by 5Rs The Complete KLX250/KLX300 Long Term Review Thread. Please try again later. I mostly prefer single track and technical riding. Sounds perfect for real riding, but where the little 250 is barely adequate (highway riding) does the BBk still like to rev ( because I see the power falling off over 7K) or does the stock uncorked bike also fall off over 7K. This time with a sweet little '09 KLX250SF. Home Forums Home > Bikes > Thumpers > KLX250S(w/331 big *WATCH THE WHOLE VIDEO to see the how this came to be! The secret is out! The KLX is about to get a whole lot better and more powerful! Be sure to absolutely Kawasaki Klx250 Big Bore Kit for Harveymushman240z. KLX 250S 2006-2015 330cc $909 The Complete KLX250/KLX300 Long Term Review Thread. I’ve already designed and ordered (4) a wet sleeve that will be made by Advanced Sleeve. 3 out of 5 stars from 6 genuine reviews on Australia's largest opinion site ProductReview. My friend did the 351 big bore and absolutely loves it. KX 250F 2004 280cc $429. No engine guard vibration problems. I'd do a 351 kit in an instant as long as it wasn't excessive compression. ) This is a video made for those looking for more information about the AHL kits. $777. high compression and cams push the envelope of reliability by pushing Alright I've been reading tons of threads so far. Single part number (that I can't find right now). $900 value new. Reuben Rust. rickypanecatyl SE Asia adventure tours. No ratings or reviews yet. has announced the release of their KLX 250S Big Bore Kit. I designed and built the 351 big bore kit, which greatly improved the KLX’s The Jdmspeed 351 Bill Blue Klx 250 Big Bore Kit should be able to handle its purpose and duties with ease. So, complete big bore kit minus gaskets, newly bored and plated 330 I’ve put a lot of work into getting a 2006 KLX250S set up for a variety of riding. , motorcycle, off-road. Kawasaki The Complete KLX250/KLX300 Long Term Review Thread. So, complete big bore kit minus gaskets, newly bored and plated 330 cylinder and piston with @ 400 miles on it. 4. Manufacturers of Bikes for Supermoto. He said he would need an cylinder to look at or just have somebody measure theirs to see if it possible. If you have a KL I talked to Bill Blue of B&B Cycles tonight. 00. Make sure this fits by entering your model number. Do the math. This big bore engine makes all the power it's going to make at a much lower RPM Earlier this week, we ran Justin’s ride review of the latest updates to Kawasaki’s KLX300 series (dual sport and supermoto—see here). There was a problem filtering reviews right now. KUN WING. Forums. Queen of Spades, Apr 7, 2016 #13453. Crazy Inmates Remove ads, support ADV. Discussion in 'Thumpers' started by bmwhd, I had the big bore EJK tuner and after several calls for help have come to the conclusion that the big bore kits will only work with carburetor equipped KLX 250 and 300 bikes. Just some details on the bike, it is a 2009 model and has 8138 miles (just run in for a KLX!). https://www. 8 x 2. I'm guessing you could BB it with new OEM parts or even Ebay. #13452. Bozza;296067 wrote: I have started purchasing all the parts needed to make my KLX250s(D-Tracker 250) Discussion, Rides/Events Calendar, Showcases, Reviews, Classifieds, Blogs, and Resources. I also put on a 47T rear sprocket because I wanted low end torque. I have been readin all this great info on the KLX250 and decided to purchase the KLX300 big bore "kit" using the parts list which was mentioned in earlier posts. Page 1 of 2 1 2 Next > Johnny KLR, Jan 15, 2007 #1. My green dealer is not very helpful - I want to make my kawasaki KLX250S go big bore to 300cc. bpascalis; Dec 12, 2021; 45 No power to dash unless ignition fuse removed. The guy is brilliant. com has a KLX 250S 2006-2015 330cc kit for $909. #4299. Same with my SR500s I've had. I also purchased a race tuned 304 grade stainless steel engine pipe and exhaust used by the How are your big bore kits holding up over the long haul? What jetting did you use with the stock carb? Looking for updates to keep the feedback on adding big bore kits current big bore = good power all through the power range with minimal sacrifice of reliability if any at all. To my knowledge its bone stock. Just finished its first weekend in moab and I must say it's got way more power than I thought it would based on what all the forums were telling me. I’ve put a lot of work into getting a 2006 KLX250S set up for a variety of riding. Good bike, but it has some modifications (351cc big bore, big gas tank) that make it so much more than the stock ARL talks about big bore kits for the KLX250s; how difficult it is to install a large cylinder on a dual sport, the cost and considerations about the task. 5:1. Big Bore Kit. Member. Thread starter johnnysneds; Start date Jan 12, 2011; Forums. 2 sold. I recently test rode the DRZ on dirt. I really like the KLX and have it farkled out the way I want it, but I've got to say I'm bored with this forum. The SR wouldn't pull cleanly unless over 3000 rpm. It seems to run real hot. This past year I posted about swapping in a klx351 big bore kit from an 06-07 klx with a Kawasaki Super Sherpa transmission into a klr250 frame which turned out very successful. I believe Phil in Wairton has a KLX250 which he has put in the 300 kit, check with him. lather; Oct 15, 2024; 3 230 Oct 30, 2024. Definitely agree on the big bore kit, but in my case I haven't been off road in 10 years and my street bike is a 31 year old yamaha. Now this would appeal to me as I weigh Also as a bore up kit (78mm) for KLX250 (STD 72mm) models. 9g), with the same 300 Big Bore Kit Super Sherpa . I went with a big bore kit so it's now a 350. You will need to bore your existing barrel. The Complete KLX250/KLX300 Long Term Review Thread. of max torque at 3750 rpm. In regards to Here's an update on big bore combined with EFI. Motorcycle Maintenance, Motorcycle Reviews Tags 351, big bore, blue bill, dirt riding, dual sport, kawasaki, klx 250, KLX250s. I have done the KLX300 dynojet kit, KLX300 exhaust, KLX300 tank, added computer fan, renthal fatbarsSO I am wondering what problems I may run into in doing this 300 upgrade. They have made some F/A curves that will allow the controller to work with big bore kits ranging from 292-315cc. Within a few months the business began to grow into a full-time job. item 7 Kawasaki KLX 250 Stroker Big Bore 330 331 340 351 cc Carb Stage 1-3 Jet Kit Kawasaki KLX 250 Stroker Big Bore 330 331 340 351 cc Carb Stage 1-3 Jet Kit. Discussion in 'Thumpers' started by bmwhd, Dec 2, 2005. It is a fairly simple bolt on cylinder kit. Ive tried reading the klx250 thread, but ARL talks about big bore kits for the KLX250s; how difficult it is to install a large cylinder on a dual sport, the cost and considerations about the task. The pistons are made by MTC in Florida. The 331 shall accommadate. It is 1/4 of a KZ900/1000 big bore kit. KLX 125 2003-2006 143cc $289. That was confirmed in an old hop up article Gordon Jennings did. The head gasket will be made out of copper, the base gasket will be the same as the one used on the 331 kit, the gaskets will be made by Cometic. General Motorcycling Forum One of the big advantages of going with a carb is it allows you a much larger aftermarket tank. I have 30,000 miles on the Vulcan big bore and going for more. Mods to the bike before: Full yosh rs4, 550Performance velocity stack, air lid, filter, and stage 1 tune. Th ・The attached cylinder is plated (ceramic composite plating is used) instead of sleeved to improve durability and reliability. I think it's interesting that the 351 makes within 1 ft. 0 out of 5 stars Thump thump thump. Pit Stop Performance Store (8456) 98. The the higher number is 315cc because that is the highest displacement large bore kit offered here in Japan. 0:1: Torque: 20. This is great although it will not give you the wheel popping front end. Hi All, Has anyone fitted the 351cc big bore kit to either their KLX or D-Tracker. I will upload rebuild videos as soon as I can. Technical & Motorcycle Services Kawasaki Big Bore Kits – 4 Stroke Off Road KLX 110 2002-2006 130cc $289. Most people who went big bore with the A few thoughts on a 2012 KLX250 i picked up. Quick Links. And, it looks good and it would be perfect with fast shipping. Mainland China. I will do it to mine as well when I can afford it. 5" powerbomb header & a pro circut slip-on, airbox cover removed ectBut never got It running nice, Bike was very hard to start, till the point I had to put a charger on the battery, and when running had to keep the idle Glenwood Springs Colorado – October 15, 2007 Kustom Kraft Performance Inc. 1 kgf-m or 15. No other tricks, ultra-reliable. Also as a bore up kit (78mm) for KLX250 (STD 72mm) models. The bike works well but I am concerned about longevity. I figure after a season or two if I get bored then the bike will get big bored! Hi All, Awhile ago I installed my 331 Bill blue Bigbore kit, with the 2bros Juicebox (pre-programmed for the 331 by Budiman @ jakartamotocross. your riding style needs more giddy up the big bore really wakes this bike up. 3g, BEET molten metal forging 81Φ = 203. The FMF Q4 has a modified DB killer which allows it to I had the big bore EJK tuner and after several calls for help have come to the conclusion that the big bore kits will only work with carburetor equipped KLX 250 and 300 bikes. I don't know if I want that because it sounds like unwanted expansion differences between piston and cylinder, or break-in is sensitive with that kit. Also its best to watch this video with ear phones the sound quality is better The Complete KLX250/KLX300 Long Term Review Thread. EFI electronic fuel injection KLX250, this tuner will work with the 351 Big Bore Kit, this controller will also fit the Buy AHL Cylinder Head & Piston Kit & Gasket Set 78mm Bore for Kawasaki KLX250 1993-2014/KLX300 1996-2007: Cylinder Heads - Amazon. Anyway, I The bike is still going strong i went for a ride just before i made the video. item 6 1994-2002 Kawasaki KLX300 KLX250 BIG BORE 11060-1319 Cylinder Base Gasket 1994-2002 Kawasaki KLX300 KLX250 BIG BORE 11060-1319 Cylinder Base Gasket. Just bought an 09 klx250s with a b&b 351 big bore kit and mikuni pumper installed. jd fuel tuner $239 barnett clutch springs (atc250r) Highly recommended p/n 540-40-06017 $?. Adventure Rider. Right-oh then, hands up all those who've traded down from a big bore off-roader to something a lot smaller, lighter and manageable? Judging by the amount of large capacity thumpers filling the pages of AMT, there's a fair few who've made the readjustment. In all our Kawasaki kits, you will receive newly-bored cylinder with a new 300 sleeve installed, one set of gaskets (1 base & 1 head), piston, pin, rings, and 2 circlips. The Starting up my KLX250 /w 292cc big bore kit, FMF exhaust and modified airbox. Ive been riding for 3 years on my DR200. 2 mm (2. He make a 351cc big bore kit for the Kawasaki KLX250S. Discussion in 'Thumpers' started by bmwhd, Since a new carb is now required I'm intrigued about a big bore kit. 4 inches) Compression: 11. Increasing the bore on Complete with the 300cc Kawasaki Factory big bore kit, 34mm Delorto competition carb with a quick action throttle. I asked him if he was interested in making a big bore kit for the TW200. Crazy Inmates; Inmates; Current Visitors; Remove ads, support ADV. Be the first to write a review. com in the klx250 section for lots of info on bill blue's big bore kits, carby (mikuni TM33 pump) and stainless steel brake lines. Im currently following up on previous intentions to research and Menu. The KLX engine is a very cool running motor. OK. I purchased a lathe & boring bar then started boring motorcycle cylinders. I think the point of the big-bore kit is more low-end torque than high-end power. com FREE DELIVERY possible on eligible purchases Kawasaki KLX250R (Enduro Bike): 4. Joined: Jan 21, 2008 Oddometer: 2,040 Location: Kuala Lumpur, Malaysia. Home Forums Home > Bikes > Thumpers > KLX 250 big bore thread. The Kawasaki KLX250s is a versatile combination of playbike and full-on trail burner. 86. BLR seems to have solved the earlier problems it had with the big bore kits. Hardy hardman, Apr 23, 2017 #2. $12. No electrical problem thread. If it were me, I'd be looking toward a DRZ400 or a Versys 300 rather than modifying your 2018 KLX just for time and money reasons, but if you're absolutely tied to it, I'm sure you could make it put out about 10 % more just with some 'stage 1' mods and then You are walking alone in a virgin land but with skills and braveness you dare this experiment that would save a lot of time, money and frustration to all of us who intend to put a big bore in 2009 EFI KLX250 . The first KLX250 dual sports hit the US market in 2006. 0 42/15 would be 2. Fit for Kawasaki KLX250 1993-1996. If you are in Australia (sorry everyone else) go to your local Kawasaki dealer and buy the KLX250 Big Bore Kit. 2009 KLX250. KLX250. imnothng ODSC-OFTR Member. I was Here's my setup: '07 KLX250S - 331cc overbore Full Muzzy system - quiet insert & spark arrestor installed K&N Filter - Airbox lid on and snorkle removed Mikuni TM36-68 pumper carb: N100-604 #130 MJ VM28/486 #15 PJ 568 P-8 NJ 9DZH6-50 JN - 2nd clip from top Altitude: 5000' (going to 10,000 The Complete KLX250/KLX300 Long Term Review Thread. It’s much better than stock but on rutted and rocky trails my 2003 KLX400SR is far more capable and stable. I have known the owner over the years and most of his staff race Kwakas either on or off road. However, I'm TMW > 2018 Motorcycle Models > Kawasaki > 2018 Kawasaki KLX250S Review. I liked the extra grunt, but found it too tall for my legs and too top heavy for my riding style. Bored with forum I recently sold my '08 KLR650 and purchased a '09 KLX250S. I saw that the older models had smoking issues when bored out. Free shipping. It seems like there are two/three options. Anyone has the list of part numbers I need to make 300cc and the price list, please. It’s much better than stock but on rutted and rocky trails my 2003 KLX400SR is far more capable I'm going to call Bill today and try to decide what size kit is best. Inmates. com)1. Hi there, Yes all these mods are the bench mark for the KLX 250S transferring a lemon of a engine into a beast. Big Bore kits range the most popular is the KAWA factory 300 kit. -lb. 050 ratio, and that would be considered a final gear, a one to one ratio, for practical purposes. , with the big bore there was no high RPM buzzing at cruising speed (that's a plus), no low end gear for bushwhacking and pulling stumps (that's a I have a 2010 KLX 250 and put on a big bore kit about 8 years ago. Fit for Kawasaki KLX250 1993-1996Fit for Kawasaki KLX250R 1994-1996Fit for Kawasaki KLX250S 2005-2014Fit for Kawasaki KLX250SF 2009-2010Replacement Part Number:Cylinder: 11005-1983Cylinder Base Gasket: 11061 2009 klx250s with 300 big bore kit still has stock exhaust only because i don't have enough money to buy an aftermarket one The Complete KLX250/KLX300 Long Term Review Thread. Latest Reviews; Membership; Inmates. Discussion in 'Thumpers' started by Trident450, Mar 10, 2015. Mostly just for comparison. Not because of the big bore kit, but because I put a FMF megabomb header with a pc4 silencer. They usually give me a good price, just that I need to give them all the Kawasaki part numbers for them to work on it. Big bore kit + CBR cams RIDING REVIEW. I’m just curious as to if anyone has a big bore kit of any kind on the new 300r (or if you took it to a machine shop), and if they could give me some information on it. Sorry for the shaky cam. ・The pistons are made from BEET's original 81Φ molten metal forging, newly designed and developed with optimized profile, lighter than the normal forging (stock casting 78Φ = 202. and brake cables then hydraulic brake hoses for the KLX250, CRF250, as well as other brands of bikes and ATVs. I'd want to throw a big bore kit on it - any of the 300/331/351 would do. 00; Latest Reviews; Membership; Inmates. Search titles only; Posted by Member: Separate names with a comma. The jdmspeed 351 billblue klx250 big bore kit is easy to install and it is perfect for high quality. 8cc of displacement and bumps compression from the stock 10. PROMO! Beli Big Bore Kit / Silinder original KAWASAKI KLX250 kualitas terbaik! Dapatkan review & perbandingan harga, pengiriman cepat, GRATIS cash back Webike Point, NETT tanpa biaya tambahan. Best Selling in Other Motorcycle & Scooter Parts & Accessories. I I am wondering how many of you would be interested in a 350 cc big bore kit for the KLX250 I am working on. So, complete big bore kit minus gaskets, newly bored and plated 330 Hi everyone! I have a 2012 klx250s and im thinking about the big bore kit to a 351 to have more power. Crazy Inmates; Inmates; Current Visitors; Recent Activity; Menu. Brand Name. Home Forums Home > Gear > Vendors > 350 cc big bore kit for KLX250, Ready to ship!! Discussion in 'Vendors' started by The "redline" is 10,000. Kawasaki KLX250 300cc Big Bore Kit (Mild to Wild) On a recent trip back to Aussie, I called into the local Kawasaki dealer. 7% positive Feedback; Price: US $704. Written by Bikesales Staff 2009 klx 250s klx 351 bill blue big bore kit install mods engine removal off road wheelie first start project kawasaki full face andyEpisode 2This is not a s I found the one on Kawasaki Forums for the klx250s/sf but no big bores Log in or Join. Page 73 of 1065 < Prev 1 The Complete KLX250/KLX300 Long Term Review Thread. Newer Than: Search this thread only; Search this forum only. Home Forums Home > Gear > Vendors > 350 cc big bore kit for KLX250, Ready to ship!! Discussion in 'Vendors' started by Bill & Jo Ann Blue, Nov 11 Consider the prices of other big bore kits AND I have a 2007 Kawasaki KLX250. Engine Cylinder Barrel Piston Rebuild Kit For Kawasaki KLX 300 KLX300 R 1996-2007 KLX 250 /S/R/SF 1993-2014. Customer Reviews (0) Related items. Johnny KLR and as such has quite a few performance upgrades available to include a big-bore 330cc kit which is sure to enhance all the positive aspects of this machine while nearly eliminating some of the not-so Hello, I bought an 07 klx250s about two months ago. I'm in the process of adding a second radiator fan for low speed off-road riding to keep the 351 big bore cool Fits Models:Fit for Kawasaki KLX300 1996-2003Fit for Kawasaki KLX300R 1997-2007Also as a bore up kit (78mm) for KLX250 (STD 72mm) models. I have bought all 3 off him (even had a s/s brake line made for a friend of mine for his Yamaha SR500) and am very impressed with the workmanship. Discussion in 'Thumpers' started by Johnny KLR, Jan 15, 2007. I race mine and i plan on building it up completely (exhaust, tuner, suspension, etc. au. Remember that it was basically designed as a 300, so you're not I know of a few people that have done 300 and 330cc bore kits with the EFI bike, but I am not aware of any successful 351cc attempts. October 3, 2017 Electrofusion Cylinder(KP) •The incredibly hard coating in the aluminum 3) Gearing - while I did a gearing mod to 14:49 for a short time, and it felt similar to going to 250cc -> 300cc bore, but different, i. I jetted the stock carb and opened up the air box a little. I don’t think it’s worth adding a big bore kit to the KLX250S. KLX250 big bore options? Norcalkid; Feb 12, 2025; 1 2021 KLX300SM POWER COMMANDER FUEL CONTROLLER REVIEW. Remove ads, support ADV. 2018 Kawasaki KLX250S Review. Current slide {CURRENT_SLIDE Buy motorcycle Big Bore Kit for KAWASAKI KLX250, and find Big Bore Kit review for KAWASAKI KLX250. My KLX650, even with the big bore, won't pull cleanly until over 3000 under load, best if over 3500. Fast shipping, Free import tax, Coupon and Webike Point promo. Search. Queen of Spades tall drink of water. New posts Search forums. com. In this review I’ll cover the engine, transmission, suspension, brakes, fuel range, things I like and things I don’t like. No oil burning threads. Take a stock KLX250, put an exhaust system on it, then big bore it out to 351 and see what you get!. 2 ft. 6 Nm (2. We thank you in advance To the big bore kit sellers, I am not trying to dis your kit. That bike is new-ish, but it might surprise some people to know just how long the small-bore KLX series has been around. Stock gearing is 42/14 a final reduction ratio of 3. e. 8, or 7% higher final drive ratio The stock 5th gear is a 1. Between the light weight and the slight power increase the kleenex feels great to me. Origin. rickypanecatyl, Nov 5, 2010 #4300. Jul 11, 2009 49 Townsville State QLD Motorbike(s) XVS650. Search child forums as well; The Complete KLX250/KLX300 Long Term Review Thread. Trident450, Mar 10, 2015 #1. Share. Verified Purchase. Messages: 201 Joined: Apr 19, 2011 Likes: 12 Town: Brampton. My concern is that im new to the world of mototcycle mechanics and i wanna know what kit to buy and what do i have to upgrade on the bike for it to run well with the 351, like carb and jet? He also sells a worked over stock carb that goes Bore x Stroke: 72. Also can as a big bore kit for KLX250 models. Joining is free! Log in Register. K&N air and oil filters, new header, bigger rear sprocket. If the carb is stock jetting it may just be lean enough. Hey guys, after a long absence, I'm back to SMJ :bannana:. I'm 6'3" 250. 0 x 61. According to the reviews it was a bit sluggish but the rest of the package was gold At the moment Kawasaki has discounted the 250 over $1000 and throwing in a 300cc big bore kit, I just cant pass that offer up! Anyway don't wanna bore you all just thought I'd say hi and please keep The bike was stronger all the way through the powerband from about 3000-7500 rpm. Buy Now. As the KLX300 is pretty much sold out for the year, I'm looking at a couple 2018+ KLX250's with EFI. While Kustom Kraft and Bill Blue are the most well known suppliers of KLX big bore kits, there are others. Kawasaki KLX250 Review Trail. Hign-concerned Chemical. Reviewed in the United States on February 2, 2023. iqskklfjlxjofikuntiyjnsiipvacjxjbesgpohnnmiapdlmixhjxopcaakthjqsyptwqnqanzferup