hopsingRMZ Posted October 14, 2005 Whats up guys! New to MX bikes. Only been riding for about a year. Broke my heel last Halloween at Ocotillo on my 04 CRF450R (now gone) New to the forum, I now have a 04 RMZ250 "race" prepped bike I got less than a year ago. By race, I mean it has some suspension work done, and apparently it had some mild engine work done at the end of last year (new top end: piston,rings,hone, clean up (polish)head/valves,rejetting) Has a FMF factory 4 pipe. The bike runs great when its running, but I've been having some issues with it on hard starting. Reading some of the threads on here, it looks like I need to check the valve adjustments (dont think it was ever rechecked after the rebuild, it had only been ridden once before I got it) Its to the point it is almost impossible to kick start it, but it will bump start after a few tries. Its ALOT better after its warmed up, but if it cools down, its a pain again! I'm going to pull the carb and check the jetting/adjustments. And I want to check the valve adjustments. Sound like a good place to start? The bike used run real warm, found it was extremely low on coolant so I put in EngineIce (works awesome!) Has a Boyesen waterpump kit also. Any tips/suggestions on jetting and maintenance will be greatly appreciated. Thanks! Steve Temecula, CA Share this post Link to post Share on other sites
Cyclepop Posted October 15, 2005 Dont pull the carb, check the valves. They are probably tightened up. All you explain is the tell-tell signs of valves out of adjustment. Share this post Link to post Share on other sites
