So, as some of you may know, i got my 2003 back together, everything seems to be decent. Went for a ride today, and it was have a bit of a FIT. idling high, when i stuffed it in gear, it would be high then suddenly just go low idle...and even just stall out. I played with idle screw a bit more, and turned it up to keep it running, but RPM's were too high idling. Also very hard to start once warmed up. Cold start no problem. The problem is if i set the idle too low, once i put it in gear it has a tendency to just kinda putter down in rpm and stall out.
I'm thinking maybe i just got some bad gas, as it seemed to be sorting itself out on the way home. Also thinking maybe clutch plates are dragging combined with being too rich or too lean, and thats why if its in gear and running the rpm's go down and it just slowly stalls out. I did take the fuel screw, turn it all the way in, and then backed it out 2 1/2 turns while on the trail and adjusted the idle screw again. Made it better, was still idling a bit high(but not as high), but at least it was starting easier like normal even when warm.
Also had a bit of an episode after going thru some deep water, that it bogged out, sputtered, spat a few times before clearing up...but was running crappy before that water hole.
Once the bike is warmed up, it will not start easily, without pulling the hotstart in. Kick it a quite few times, then give it a shot of gas, while hotstart is pulled in, to get it going....if it's having a hard starting episode....pretty much only way it'll go.
Any ideas what i could look at? It had a recent carb rebuild. all new exhaust gaskets(both), new silencer packing. valves adjusted by shop(double checked my work), New valve seals, new base and head gaskets. New water pump assembly, from bearings to seals to shaft to impeller itself. Head was warped slightly(kept blowing head gaskets) but they plained it off just fine. Doesn't backfire a whole lot when decelerating...only the typical backfiring you hear em all do. light little pops once in a while.
This first vid is after i put engine back together...new gaskets, valves done(seals and adjusted), etc. Was running flawless, idling good, etc....i parked it, then took it out today, and i was getting the high idle, hard starting after hot....only thing changed was i put gas in it (93 octane) which i've been running all along. i'm not quite sure why there is such a dramatic difference between when i first went out, came back and parked it, and took it out again. it has me scratching my head.
I'm wondering how i can tell if it's rich, or lean. i'm used to two strokes, and it was pretty damn easy, pull the plug and look. lol. I'm wondering what could cause such a night and day difference with the bike, from when i parked it to take it out very next trip?
Video of running good: https://www.youtube....h?v=LMsa8j6LzO8
Video of running bad(today)(note: i swear in vid i think): http://youtu.be/tP2o5SDPRHQ
Edited by soulsedg3, July 10, 2015 - 07:15 AM.