yz125rider47 Posted June 7, 2010 I got a '96 yz125 last summer. It ran strong when I bought it, but it was towards the end of the season and one thing led to another and I haven't had a chance to ride it till recently. Long story short I can get it to start if I pop the clutch but I can kick it all day and it won't quite turn over enough to start. I'm definitely not engine oriented. Is that just the spark plug? Once I get it warmed up it will start no problem off a single kick. Share this post Link to post Share on other sites
john484 Posted June 7, 2010 sounds like you just need a new top end, that's all. do a search, there are tons of posts on how to do it. Share this post Link to post Share on other sites
yz125rider47 Posted June 10, 2010 Can you list out what parts specifically that needs? I'm pretty sure that's just the gaskets and cylinder though, right? And how much do you think that'll run me for cost? Share this post Link to post Share on other sites
sykal Posted June 10, 2010 Can you list out what parts specifically that needs? I'm pretty sure that's just the gaskets and cylinder though, right? And how much do you think that'll run me for cost? http://www.motosport.com/dirtbike/product/WISECO-PROLITE-PISTON-KIT-2STROKE/?catalogId=108625&sMMY=YAMAHA%3BYZ125%3B1996 you do *not* need a new cylinder for a top end replacement. thats all you need for a top end comes with piston, ring, an gaskets, and circlip. very easy to do, look up instructional videos on google video. make sure to go slow, its very straight forward. took me and my girlfriend about 2 hrs the first time. Share this post Link to post Share on other sites
kan3 Posted June 11, 2010 Have you cleaned the carb? Share this post Link to post Share on other sites
yz125rider47 Posted June 11, 2010 thanks for the link. As soon as I get paid again I'll order that and give it a go. Share this post Link to post Share on other sites
jleblanc Posted June 16, 2010 i suggest bringing it to a shop you can do a lot of damage if you do it wrong Share this post Link to post Share on other sites
charlevoixboy Posted June 16, 2010 First off, get the shop manual, it makes things so much easier. If I were you, I'd start off by cleaning the carb, and see what that does. If need be, bring the carb to the dealer and let them clean it. See if that helps. If the bikes very easy to kick over, as previously stated, it may be time for a top-end. I would recommend the kit previously posted, it has everything you need to refresh your engine. Good luck, the search function is your friend! Share this post Link to post Share on other sites
