GTLasesr Posted January 25, 2010 Report Share Posted January 25, 2010 (edited) I had an issue a month back..... replaced the coil, stator and flywheel. That solved the issue and I ran it all day long no problems. Week later it won't kick start or stay at idle but I can push start it in 2nd and keep it running with the throttle. Note I didn't re-jet it for colder weather. Maybe I need to re-jet, any ideas? Thanks! Edited January 25, 2010 by GTLasesr Quote Link to comment Share on other sites More sharing options...
fastbanshee8 Posted January 25, 2010 Report Share Posted January 25, 2010 Hard starting is a sign that it's lean. Try a bigger set of pilot jets, or turn the air mixture screws in, and see what happens. Quote Link to comment Share on other sites More sharing options...
xX JAMMER Xx Posted January 25, 2010 Report Share Posted January 25, 2010 or possibly it is has low compression, or check and see if the tube that connects the 2 carbs choke is still on there Quote Link to comment Share on other sites More sharing options...
GTLasesr Posted January 25, 2010 Author Report Share Posted January 25, 2010 Hard starting is a sign that it's lean. Try a bigger set of pilot jets, or turn the air mixture screws in, and see what happens. Turned screw all the may in and same issue. or possibly it is has low compression, or check and see if the tube that connects the 2 carbs choke is still on there Not sure about compression but it is a pretty fresh motor. Also I am running single carb set-up. Next weekend I'll change out the pilot jet. I am thinking that's the issue bc my buddy with his carbed 450 is having the same issue which started at the same time. Thanks Quote Link to comment Share on other sites More sharing options...
baker Posted January 25, 2010 Report Share Posted January 25, 2010 Turned screw all the may in and same issue. Not sure about compression but it is a pretty fresh motor. Also I am running single carb set-up. Next weekend I'll change out the pilot jet. I am thinking that's the issue bc my buddy with his carbed 450 is having the same issue which started at the same time. Thanks i'd def. do a comp check, sounds like what mine did and my right side piston was smoked. jusy my.02 Quote Link to comment Share on other sites More sharing options...
xX JAMMER Xx Posted January 25, 2010 Report Share Posted January 25, 2010 or possibly it is has low compression, or check and see if the tube that connects the 2 carbs choke is still on there ah the vaccum hose is what i was trying to say lol. my mind drew a blank for a minute.. i had the same problem with mine and it was running way to lean. i had 220 mains and went with 280's.. also did one size bigger on pilots Quote Link to comment Share on other sites More sharing options...
AKheathen Posted January 25, 2010 Report Share Posted January 25, 2010 just how cold is it? what oil are you running? Quote Link to comment Share on other sites More sharing options...
GTLasesr Posted January 31, 2010 Author Report Share Posted January 31, 2010 just how cold is it? what oil are you running? It's anywhere from 25-45 degrees and I just switched to yamalube, had some lying around. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted February 1, 2010 Report Share Posted February 1, 2010 well, you do need to go up 2-3 sizes on the main, so i would start there, and give it a good cleaning while you are in there. make sure to get the pilot passageways. definately do a compression check, and look for oil separation in the cold. one thing you can do to rule that out, is drain it all in a warm place, shake it up good, and keep it warm and put it in when you are ready to start it up Quote Link to comment Share on other sites More sharing options...
mustnotknowboutp Posted February 2, 2010 Report Share Posted February 2, 2010 I had an issue a month back..... replaced the coil, stator and flywheel. That solved the issue and I ran it all day long no problems. Week later it won't kick start or stay at idle but I can push start it in 2nd and keep it running with the throttle. Note I didn't re-jet it for colder weather. Maybe I need to re-jet, any ideas? Thanks! Quote Link to comment Share on other sites More sharing options...
mustnotknowboutp Posted February 2, 2010 Report Share Posted February 2, 2010 I had same problem with a single carb as well, I replaced the CDI box and had no more issues Quote Link to comment Share on other sites More sharing options...
AKheathen Posted February 3, 2010 Report Share Posted February 3, 2010 ......and what brand stator/flywheel/coil did you use? Quote Link to comment Share on other sites More sharing options...
AlkyGirl Posted February 3, 2010 Report Share Posted February 3, 2010 Im gonna have to say you need to go up on the pilot jet, the pilot jets main purpose it for starting and idle. Quote Link to comment Share on other sites More sharing options...
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