Question:
Like I said, I have a 2001 Honda CR125, and I can start it by pushing the kickstarter over with my hand, so in other words it has very little compression, but it still runs good though. It is very cold blooded when you first start it, and it usually takes 3-4 kicks before it will take off by itself, or it will otherwise just struggle and barely run until it dies, then kick it over again a few more times until it takes off, then wait at least 5 minutes before it warms up completely or I have to dump the clutch to get it to move, which I don't think is the best for it when it's cold. My Kawasaki KE100 has more compression than my 125, so I'm starting to think it needs new rings or a rebuild. Am I right? Any input it greatly appreciated!! Thanks!!
Answers:
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yeah ur bike does need a rebuild but jus the top end. depending on the condition of the piston and cylinder u might jus need new rings. if the piston or cylinder has bad scarring than the piston will need to be replaced and the cylinder honed or bored out.what web site can i buy just about EVERYTHING for a suzuki sv 650 motorbike.?
Face it Tanner, you are a he-man. Your upper body strength is unbelievable.Sounds like top end time. Replace piston and rings. Clean out power valve.
If you are mechanically inclined and have a shop manual, get after it.
Make darn sure you keep everything in exact order as it came off or you are screwed. It will cost you more to take it into the shop as a basket case, so think about your skills.
Wash the bike so it is spotless before you attempt anything.
A decision of this caliber requires at least 3 cold beers before you proceed.
First of all hand starting is not the way to test compression, I used to be able to handstart my Kawasaki 350 twin and I know a guy who can handstart his 850 Norton. Invest in a compression gauge, they are not very expensive, or borrow one.
Being that CR125s are a racing machine ( high maintainence) you may in fact be due for a ring job. Its not a big project, but, you'll need a few tools and a few smarts. Get an estimate from the local shop.
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