flooding
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DevonCbx
- Forum Regular
- Posts: 155
- Joined: Fri Jan 12, 2007 7:39 pm
- Location: Edmonton, Alberta, Canada
- Location: Edmonton, Alberta, Canada
flooding
If the engine is turning over with no spark, in escense will the gas get pumped out of the over flows like it is flooding? I noticed a fair amount of gas pouring out of the tubes.
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alimey4u2
- ICOA Web Video Director
- Posts: 5093
- Joined: Fri Aug 11, 2006 1:03 pm
- Location: Uphill, WsM, United Kingdom
Excellent advice guys..... 
Duane, don't forget that the flooding problem can be simulated on the bench. No need to fit the carbs to the bike until this problem is rectified. Flooding is caused by the following ( which has been previously covered.)
Leaking float/s. Weigh the floats on a powder scale (used in reloading ammo, if you don't have one I'm sure one of your mates have) to ensure they weigh close to the same. Submerse in hot water & look for a fuel rainbow (bloom)
Sticking float needle valves. Replace but then check as new ones have been known to leak.
Sticking float/s. Caused by debris/build up in the float bowls, clean thoroughly. Also damaged or worn hinges may effect their duty.
Incorrect float height. Refer to the workshop manual, be careful & ask advice as it's not too clear.
Duane, don't forget that the flooding problem can be simulated on the bench. No need to fit the carbs to the bike until this problem is rectified. Flooding is caused by the following ( which has been previously covered.)
Leaking float/s. Weigh the floats on a powder scale (used in reloading ammo, if you don't have one I'm sure one of your mates have) to ensure they weigh close to the same. Submerse in hot water & look for a fuel rainbow (bloom)
Sticking float needle valves. Replace but then check as new ones have been known to leak.
Sticking float/s. Caused by debris/build up in the float bowls, clean thoroughly. Also damaged or worn hinges may effect their duty.
Incorrect float height. Refer to the workshop manual, be careful & ask advice as it's not too clear.
ICOA # 656
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bobber
- Forum Regular
- Posts: 109
- Joined: Sun May 01, 2005 7:34 am
- Location: Ft. McMurray, Alberta
DON'T CRANK IT IF YOU HAVE THAT MUCH FUEL COMING OUT!!!!!!!!!!!!
You're setting up for a bent con-rod Devon. Fuel can get on top of piston and hydraulic lock.
Whenever I have any carb(s) off I always turn upside down before I put bowls on and blow into fuel line to check for leaks around float valves. Use regulated compressed air if you desire to about 10-15 psi... remember its gravity feed... don't use full shop pressure.
You're setting up for a bent con-rod Devon. Fuel can get on top of piston and hydraulic lock.
Whenever I have any carb(s) off I always turn upside down before I put bowls on and blow into fuel line to check for leaks around float valves. Use regulated compressed air if you desire to about 10-15 psi... remember its gravity feed... don't use full shop pressure.