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mr426

NEED HELP! bike still wont start 1-1/2 weeks after washing it!

9 posts in this topic

ok, so here is the deal. my 02 426 is running like a champ in the trails. i get home, wash it, park it. next day it wont start. no water got in the pipe btw. i have made no new mods since my last ride. it did get it to start twice in the last week and run crappy and die. would never start after it died those two times, puffed and blew black fuel smoke and smelt very strong like gas. ok so i have spark *sometimes* *sometimes not* *sometimes weak and orange* i have tried 2 new spark plugs. plugs always come out wet with gas, like its flooding. clean filter (not too much oil), disconnected kill switch, cleaned and reconnected all elictrical connectors. all jetting is stock. i checked and a jet did not fall out into the bowl. what can be wrong with it??? need help asap, got a hollister ride sunday!!!

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Even though you state the plugs are wet try draining fuel from carb (check for water in bowl), then clean carb, blow out all air ways and jets (pilot jet is easily blocked). then look more closely at electricals.

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Did you start it right after washing the bike? Your air filter was wet and dirty and sucked water and dirt in one of the hole's in the back of the carb. Same thing if you start your bike with fresh oil on air filter it will plug the hole in the back of the carb and won't start.

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thanks for the help. i did not start it after wash. air filter and box were completly dry. i already drained the bowl and cleaned jets. i will check the little hole you were talking about to see if it is clogged. any more ideas? shorted and wet coil/cdi box???

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Take all the electrical connectors apart, blow out w/compressed air, followed w/a quick blast of WD-40. Reassemble.

Then check the ground of the coil to the frame, & any other grounds. Clean w/fine sandpaper, reassemble, spray a bit of WD-40 on there.

If all that fails temporarily disconnect the kill switch.

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Take all the electrical connectors apart, blow out w/compressed air, followed w/a quick blast of WD-40. Reassemble.

Then check the ground of the coil to the frame, & any other grounds. Clean w/fine sandpaper, reassemble, spray a bit of WD-40 on there.

If all that fails temporarily disconnect the kill switch.

i already cleaned all connectors and hit em with some wd. i also disconnected the killswitch already. i will try cleaning the coil grounds though. any more ideas guys???

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Wire could be ground somewhere. My problem with my bike not starting was because of a tiny nut off my feeler Gauge that fell through my valves when i was checking them. It must have went through the cam chain. Managed to find the bugger stuck to my fly wheel. : (

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ok, so i just went out to work on my bike for the first time this morning. i cleaned the coil connector and mounting contacts and the bike fired up and has been running great all day. not sure if it was that or maybe something has finally dried out after sitting so long. anyway, thanks for all the great help!!! now i can ride:)

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