Engine Flooding

Thom · World Chat Champion Joined: 24 Oct 2007 Karma :

Ok, after setting the valve timing i had the bike running quite nicely at idle, although the right cylinders plug was very coked up, and the left plug came out wet.

So im guessing thats an electrical issue because the plugs both spark strongly when outside the cylinder, and i dont think my coils are to blame although im going to swap them over and have a check.

Anyway, today i had to bump the bike to start it, low battery charged it up, good spark, and it wouldnt run. Wehn it did run before hand (when i bumped it) if i touched the throttle the bike would bog very badly until it stalled and wouldnt run.

What would you suggest i do other than bin the bike?

Gs500e btw!
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Current Bike: 1996 Yamaha TRX850 (The Japanese-Ducati One).
Previous Bikes: 1990 Honda NSR125 'Rothmans' (The smoking one), 1990 Suzuki GS500e 'Caf? fighter' (The loud one), 1987 Kawasaki GPX400r (The quick one), 1997 XJ600s Diversion (The reliable one), 2000 Kawasaki ER-5 (The spontaneously combustive one)

rotax81 · Nearly there... Joined: 10 Sep 2008 Karma :

check the carbs are not flooding and just because a plug sparks outside the cylinder it doesnt mean it will spark under pressure. ive had that more than a few times.
try a new set first Thumbs Up

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ZX636C6F road. ZX636C1H track. ZX7R redundant. ZX0.5R minimoto as ornament.
Audi A4 Avant 1.9TDi and VW Transporter 2.5TDi 888 Special (no mot and tax lol)

Thom · World Chat Champion Joined: 24 Oct 2007 Karma :

rotax81 · Nearly there... Joined: 10 Sep 2008 Karma :

float height and needle valve for wear.

basically remove the carbs, hold them level, turn the fuel on and wait a couple of minutes to see if fuel starts leaking out of the overflow or either end of the carb.

still try new plugs first though, always a good start (no pun intended) lol
____________________
ZX636C6F road. ZX636C1H track. ZX7R redundant. ZX0.5R minimoto as ornament.
Audi A4 Avant 1.9TDi and VW Transporter 2.5TDi 888 Special (no mot and tax lol)

Thom · World Chat Champion Joined: 24 Oct 2007 Karma :

Thanks, i've got work and then a girlfriend needing tending to this weekend so it'll be monday before i can have a tinker but ill post back and let you know how it goes. many thanks!
____________________
Current Bike: 1996 Yamaha TRX850 (The Japanese-Ducati One).
Previous Bikes: 1990 Honda NSR125 'Rothmans' (The smoking one), 1990 Suzuki GS500e 'Caf? fighter' (The loud one), 1987 Kawasaki GPX400r (The quick one), 1997 XJ600s Diversion (The reliable one), 2000 Kawasaki ER-5 (The spontaneously combustive one)