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  1. Tech/Setups for Supermoto
    What's up guys, I just recently picked up a 06 625 SMC that's had a few previous owners. I took the carb off for cleaning and jetting and was pleasantly surprised to find a Boysen AC pump cover. From what I think I know :hammer: Boysen makes a few different pumps designed for different...
  2. Tech/Setups for Supermoto
    I've been in the process of setting up my FCR on my '15 XR650L and am having a heck of a time getting the bike to idle right and ride at low throttle inputs. Currently I have a 55 pilot jet and 85 pilot air jet (which is pretty big compared to other bikes with this setup) fuel screw ~3.5 turns...
  3. Bike Parts
    Freshly rebuild Keihin FCR MX 41.5 racing carburetor for sale, Assemblies: - TPS (throttle position sensor) - Cold start choke - Hot start choke - Oversize bowl drain plug - Fuel mixture screw remote control - Silicone vent lines + filter case with oiled filter...
  4. Suzuki
    From my searches it seems that the fcr 39 with the removable intake (or is it exhaust side) is best. You can pick one up for about 350-400 used from what I've found. Will the fcr 39 without the removable intake work???...from what I've read it's a pain in the ass but possible. But i've found...
  5. Tech/Setups for Supermoto
    Hey Junkies, I might have an opportunity that some of you would find interesting. I just recently picked up a completely stock 2009 DRZ400SM from a kid in NY. He was the first owner, and had barely ridden it (2k miles). I knew even before I picked it up that I was going to have to do some...
  6. Tech/Setups for Supermoto
    I have a 1998 Wr400 that has been down for a while. I was riding it about 2 months ago, when it suddenly started to surge in power, then immediately died. I tried to restart the bike, but it had no compression. After i tore it down, I found a piece of the carb vacuum plate (FCR MX 39) stuck in...
  7. Suzuki
    I am looking for a FCR for my drz. Anyone have one for sale or see and ads for one? Let me know. Oh and dont forget, WHEELIE TILL YOUR DICK FALLS OFF!:thumbup::shhh:
  8. Tech/Setups for Supermoto
    Hello, I am looking at a Big Bore kit for my DRZ. I found one that is a steal of a price from a guy. It is a cylinder with a 453cc sleeve. He is also selling a used but rebuilt 41.5mm FCR carb. My questions are, is this a good kit? Is it too big and will my reliability suffer a lot? Also...
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