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Found 5 results

  1. Ever been bored or really ticked off by not being able to reach your fuel screw for trailside adjustments? Well, I decided to do something about it, and not spend a bunch of money to boot! Parts liste included: Short length of brass tube. Short piece of old, broken speedometer inner cable. Nut from the rejects bin. I welded the nut to the speedometer cable inner and soldered the other end to the fuel screw using the brass tube as a connector. I didn't need or fab up a holder for the end, but I wouldn't be too hard. My DIY flexible fuel mixture screw works great and the price is right! I highly recommend this mod. Cheap, but effective DIY fuel mixture screw
  2. Zach7018

    Another big bore question

    So Ive decided its time to pull apart my favorite machine and freshen it up, and I'm looking to make some improvements in the process. I already have a 3x3 mod and a JD jet kit done and it seemed to have changed the world. The stock bike just plain sucked and now its a lot better. I never expect 450 race bike power here but I know there is a little more and I'm wondering if the juice is worth the squeeze. I already plan to add a header and exhaust, an FCR39 carb and stage 1 hotcams. After some research it really seems like those places are where the gains actually come from, so would it be worth it to throw a 434 big bore kit at this bike or just stick with what I already mentioned and a new stock bore top end??? Also my rides are often solo and pretty isolated,how much of a reliability headache can I expect with these mods?

    Question About FCR39 MX Carb

    Hey guys, I just ordered the carb directly from Keihin and was wondering if you guys knew if it was a direct fit or if I needed to order an adapter for it. If I need the adapter then a suggestion on where to get it would be appreciated.
  4. Hello everyone, So the biggest performance bang for your buck IMO is a FCR carb swap in your XR650L. I have an '03 that I swapped in a 40mm carb from an '08 CRF450R. The swap was easy, and I noticed a big increase in throttle response. However, intermittently, the bike falls on it's face when I give it throttle. If I let off the throttle, it will barely maintain speed, and if I twist it again, it just bogs. Like it's not getting fuel. After cruising slowly or stopping for a while, then the bike runs fine. It's sporadic and definitely is instigated by wheelies. Fuel flow is OK with a full tank, so I'm thinking the float level needs adjusted? It's almost like...if the float bowl is full, it runs great. After the float bowl is depleted, it falls on it's face. Any suggestions, or other ideas? Thanks for any help!
  5. Ok so quick overview of what I have here: 2007 DRZ 400 sm with about 31 000km on it (about 19000 miles) with limited edition plastics. I'll post a photo for good measure. As far as performance mods go, I only have an aftermarket slip on. It's a Scorpion Exhaust, I wouldn't even be able to say what model as I can't find it online… It was put on the bike by the first owner and it loud as &%$#@!. He said the baffle fell in when one of the welds broke and he had to take it out. He gave it to me but I can't put it back on. Anyway I love the bike and it starts fine with the starter on and then runs fine, except it sometimes stalls if I blip the throttle really quickly, go figure why. It also backfires a lot on deceleration with this exhaust… I've had the bike for about 7 months now, put about 4000km on it and love it. I think it's time to start getting some performance mods to make it run a bit better and make it more fun. I was looking into the 3x3 mod and JD jet kit for the stock carb and saw that people were heavily recommending to swap the carb for a FCR 39. I'm not planning on spending nearly 600$ on a new carb but I checked on our equivalent of Craigslist and found an FCR 39 that came off a 2008 KTM 530 exc-r for 200€ (about 235 USD). First of all, would that be a good fit for my DRZ? I read there are a few different FCR 39 type of carbs. I know I need some parts to make it fit the DRZ and found this kit for 93USD but the shipping cost to France is 60USD… That would bring the FCR swap to about 330€ (a little south of 400USD). Is it worth it? Do you guys think I could find an adaptation kit in Europe? Also, I think I'm gonna get the Yoshimura RS2 full exhaust and I was wondering what kind of jetting I would need in the FCR to run smoothly with that exhaust and the 3x3? Thanks!