Free shipping. Bill Blue, who developed a popular Kawasaki KLX250 big bore kit, is also working on one for the CRF250L. One of the main goals was to keep the light fast reving 250 feeling without making it overpowering or unridable. Crf250l big bore crf250l big bore best crf250l mods for performance bore up kit 305cc sports shaft crf250 rally big bore Crf250l 12 20 305cc Big Bore Kit Crf S OnlyHonda Crf250l Big BoreCrf250l Big BoreHonda Crf250l Big BoreThe Crf305l Owners Thread Crf250l M Rally Thumpertalk305 Big Bore On Crfsonly Site Crf250l M Rally ThumpertalkCrf250l Read More » Both had issues after the big bore, didnt last in race conditions, the kx300f had acquired a wierd noise after 3 hours of use the 270s head was pushed to the limits, every big bore 250f ive seen that doesnt have the head done ie stiffer valve spring cams to match porting because whats the point of going bigger with the casting flaws from the factory that hinder flow. We don’t know what final pricing will be, but this is something that also ought to be interesting to CBR250 owners. I already have the ejk for 250 but was wondering if that one works with the 305? They are totally different bike but I feel like my CRFL got little less power than my KTM. + Update your shipping location 7 S 0 P O N S O A R P A 7 E E D-1-1 U J-1 0 F J-1-1. FI CON2（Injection controller） / Hyper Bore Up Kit 305cc CRF250L(MD44) CRF250 RALLY(MD44) ※Although it can exceed the rev-limit of the stock ECU, since it becomes an over rev for stock engine , please use it at own risk. Only 1 left! Also is the big bore kit worth it? Click pictures to supersize. I had to sneak an open-end wrench up the left side of the shock behind the airbox tab. This 305cc big bore kit will kick your CRF250L to 24hp! The Cylinder Works big-bore kit is enhanced greatly by a few more bolt-on additions, like a pipe, cam and a larger air boot. Then add shipping each way, which for me was twice $50, so the total bill was a dime short of a $1,000.00, nearly a third of what the whole bike had cost. Get the best deals on Motorcycle Big Bore & Top End Kits for 2006 Honda CRF250R when you shop the largest online selection at eBay.com. Complete installation, to include all machining and a fresh valve job, runs another $400. Removing the nut by loosening the bolt is the hard way to get it off, but that's what I had to do. The Honda CRF250L Service Manual calls for removing the sub-frame, and there was no way I was doing that. I ordered another Thumper Racing piston kit and gaskets. Even on the EJK website it's a different part number for the one with the big bore kit. It’s hard to find a bike that dabbles in all of these disciplines that costs less, requires less maintenance, and can still cruise the highway without drawing attention from the constabulary. The initial installation is on my CRF250L which has been modified as described on my modifications page. However, B&B will buy your original cylinder for $75. Buy Honda CRF250L with Big Bore Kit Fuel Injection Programmer 2013-2019 EJK 9110035: Fuel System - Amazon.com FREE DELIVERY possible on eligible purchases Honda CRF250L Single Piston Kit CRF250L 2013-2016 40070M08100 Big Bore 12:1CR (Fits: Honda CRF250L) $176.95. Alert - CRF250L news March 6, 2017: Honda recently announced an updated CRF250L AND a new Rally … I saw a big bore kit on crfsonly and it says you need the 305cc version of the ejk. Crf 270 kxf250 athena 300. In November of 2006, my 250X rolled over 6000 miles on the odometer, and I decided to refurbish the top end. So after a few conversations with the Mad Scientist aka “BigBlock Barry” I’ve decided to pull the trigger on a cbr300 crank coupled with is 283BB and ported cylinder head with plus 1mm valves. We offer two Honda CRF250L big bore cylinders 283 Big Bore Kit $503.95 305 Big Bore Kit $533.95 The 305 kit require EJK Fuel Control Systems $202.00 All cylinders have a $80.00 core charge returnable when cylinder is received. i want to get a crf250l and use it as a commuter bike but topping out at 70mph isn't the best for highway riding... if i installed a big bore kit (305cc), what would be my top speed and comfortable cruising speed for the highway (65mph speed limit)? The stock CRF250L produces approximately 17hp. Thread starter Kustom Kraft; Start date Sep 17, 2014; K. Kustom Kraft Junior Member. This big bore took too much of that feeling away to gain some grunt. I'm looking to get one in the next few months but I got a concern that has been nagging at me. Most big bore 250’s don’t rev out anything like a stock 250. Big Bore Kit Includes: Big bore cylinder Big… 4.2 out of 5 stars 57. * We highly recommend the optional EJK fuel module for maximum increase in power and throttle response. So, I'm going to call Forrest today at Wheeling Cycle Supply (I have dealt with him face to face) and get this kit ordered up. Portal Page Forums > 2012+ CRF250L > 2012+ CRF250L General Discussion > Higher Octane Discussion in ' 2012+ CRF250L General Discussion ' started by DrGadget , Jul 31, 2016 . $79.67 $ 79. The main goal of the 270 big-bore kit our rep said wasn’t so much about increasing total, or peak, horsepower as it was “boosting torque and getting the torque to start a little earlier [in the powerband] and lasting a lot longer. ※ CRF250L will be subject to (05-04-0015) FI CON2.We donʼt confirm it in CRF250M. Big Bore 10/18/13 Maintenance 3/23/13 Tuning EJK 6/12/14 Tuning AFR+ 10/20/14 Head-to-Head 8/16/12. But if its the setting that's different why not use the regular one and just change the settings. I would be content with this bike being 300 lbs and 30 hp at the wheel. Kustom Kraft here were looking into a big bore kit for the Honda CRF250L. Comparison between my modded CRF250L and after installing a 305cc big bore kit.Very happy with the results. Probably a dumb question but I didn’t know if it’s a marketing tactic or something. The trouble is, the 250L is just about smack dab in the middle between adventure, big-bore singles, and 250-pound un-plated dirt bikes. We started with a Cylinder Works big-bore kit ($649.95) and mated it to a Hot Rods stroker kit ($599.95). Big Bore Kit v2. It felt like the cylinder was punched out to bigger than 270, but not in a good way. GY6 Cylinder Rebuild Kits Trkimal 100cc Big Bore Kit for 64mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring. Have previously had a big bore takegawa kit fitted to the CRF that was the most unreliable junk ever to grace this earth, however I hear reasonably solid word on the stroker conversion. Honda CRF250L big Bore? 67. I installed Takegawa Hyper Bore up Kit for 2014 CRF250L. Mods done by Big Bikes in Korat Total charge for everything 13,000 bhat Have done the 305cc big bore kit, race cams and new fuel controller.