scotty Posted July 10, 2007 Report Share Posted July 10, 2007 Hi All, Im having problems with my kawasaki kt250 i have to hold the throttle wide open to get it to start!(choke on) also when the engine starts the choke has to be turned off almost straightaway or it wont run! also the engine gets really hot quickly? when warm if you turn the choke on it kills the engine instantly! (this dosent happen on my beamish it just runs to rich!) theres not a lot of compression when you crank itover by hand! there so it may need a rebore or new rings? any ideas? thanks in advance Quote Link to comment Share on other sites More sharing options...
jaylael Posted July 13, 2007 Report Share Posted July 13, 2007 Sounds like your Kawi has an air leak. Verify mag side crank seal isn't popped out. Also check compression with an automotive compression tester. Should be at least 120 psi. It could be simply worn out. If the basic engine is in good shape with no air leaks it becomes a carb. issue. Start with the basic pump. (the engine is just an air pump) Then expand to carb, and timing ck. Quote Link to comment Share on other sites More sharing options...
scotty Posted July 13, 2007 Author Report Share Posted July 13, 2007 Thanks mate! ill check the ign crank seal, dont think it will be the clutch side as the bike hardly smokes! Im Going for a rebore/ new piston etc!!! but where the hell do you find pistons for the KT250! got a geniune +50 piston but no rings! Quote Link to comment Share on other sites More sharing options...
feetupfun Posted July 14, 2007 Report Share Posted July 14, 2007 Options for reboring KT250s Wiseco Honda MT/CR 250 Elsinore piston - take care when fitting barrell till rings ends get above the rear ports. CR pistons have ring ends end at rear (KT has ring ends at front) but the CR ring ends miss the port holes once assembled. No barrell spacer needed. I've had one in my KT for a few years now with no problems. Suzuki TS250 pistons work OK too but require a spacer under the barrell as the gudgeon pin is lower than on the KT piston. David Lahey Quote Link to comment Share on other sites More sharing options...
twinshockdude Posted July 14, 2007 Report Share Posted July 14, 2007 hi scotty,you need to talk to fred in new zealand,he is very helpfuland has all the bits http://kawasakikt.tripod.com/FREDKT.html Quote Link to comment Share on other sites More sharing options...
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