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About imbirasongs

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  1. can any one help get me ballpark jetting for a new carb in my 2001 sm 570r I built a straight through exhaust using the stock muffler shell and it now has a two inch out let no baffles, I also drilled the intake, to be the same as the nox is. the bike is hard to start still (d. o. carb stock jets) and the bike has pretty large flat spot in mid range, but theres more power after the mods. I got a carb from a 2004 honda 450 quad its a keihin 42 thats 42mm inside . I don't actually know what the needle is but its got a small main like a 165 or 168 and a 48 pilot what size main do you recommend which pilot what is a leak jet, and where is it , what size should I run. which needle should I use I have a c550 needle in there right now. any sugestions? I have all mains and pilots between 155- 185 and 40- 50 the carb is not a fcr but should work what is the purpose of the electrical inputs in the keihin carbs and are they critical for operation wow thats a lot of info. any help would be great. thanks again Derek
  2. imbirasongs

    03 wr 250 engine failed ...crank? or top end?

    engine blew rod berrings replaced with new hotrods crank should be good
  3. why?.....why... my girl friend rode this bike since it was new only 1100 mi now...good oil changes clean filter rode easly. whats going on. tons of restiance while kick starting... starts and sounds terrible ... stalls with clicking noise... push bike back to garrage and close door... help...