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Suzuki MX & Off-Road Dirt Bikes
Hard to start RM 250
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[QUOTE="wgwgoldwing, post: 718302, member: 49389"] You might have some fuel built up in the crankcase. Take the plug out and have a friend help you turn the beast upside down. Work the kick starter with your hand and you will probably get a bunch of black crude spray out the plug hole. It's a good "no-cost" something to try. Mine had a lot in it probably due to I really didn't know how to properly start it (kept kicking, and kicking and kicking - forcing more and more fuel into the crankcase). A routine I use on my 86 RM250 (and for my 04 RM250 for that matter) is: Engine cold: Choke on, throttle closed, 4 swift "jab" kicks, usually starts. If not, Choke off, throttle closed, 4 swift "jab" kicks, if still no start, Choke off, wide open throttle, 4 swift "jab" kicks. Engine warm: Choke off, throttle 1/8 - 1/4 open, 4 swift "jab" kicks, usually starts. If not, Choke off, wide open throttle, 4 swift "jab" kicks, if still not start, Go to Engine cold procedures. I think I needlessly spent alot of money on my 86, when it was just my inability to start the monster. I put on a new coil (tests determined it was borderline), silencer, played with numerous carb settings, did compression checks (which came up around what your's did), even did a top end (bored out and all). After the top end I was still having the same problem. After much trial and error, I finally got it right. The above starting procedures work for me just about everytime. If they don't, I usually have a fouled plug. One thing that made kicking soooo much easier was a pair of good MX boots (since then I got all the gear), but when first starting I didn't want to throw down the bucks, just incase I didn't like the sport. New boots are pretty stiff and really help you direct the power straight to the kickstarter. I wish I would have bought some the day I bought my bike It would have saved a lot of pain and aggravation. When you kick, pretend there is a big hairy spider on the bottom of your foot, and you want to get that burger off quick. Anyway, this was my experience with a hard to start RM 250. There could be many other contirbuting factors in your case, mechnical problems, restricted air flow (dirty fiter), etc. If it's just starting procedures, this may help. Let us know how it goes. Good Luck, wgwgoldwing [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Hard to start RM 250
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