90 seadoo sp backfireing afther carb cleanig never mess with anything that had to do with the timeing .it starts up good, at half of trottle thats when it starts to backfire and when i get it to full trotthle it bogs and dieds on me .my setting are at low 1-3/4 the other one is at 1/4.going to put new plugs today see what happends. or my setting wrong thanks ...
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backfireing
- Thread starter lilpain
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Dr Honda
Well-Known Member
Did it run before the carb work?
Is it an actual back fire? (out the carb) Or is it just a popping?
An actual back fire can be caused by a lean condition, or excessive rotary valve clearance. (or out of time)
Finally... if it's been backfireing a lot... then the carb will need to be taken apart again. The heat, and pressure could have plugged up the transition orifices, or blown out the diaphragm.
Is it an actual back fire? (out the carb) Or is it just a popping?
An actual back fire can be caused by a lean condition, or excessive rotary valve clearance. (or out of time)
Finally... if it's been backfireing a lot... then the carb will need to be taken apart again. The heat, and pressure could have plugged up the transition orifices, or blown out the diaphragm.
Did the RV valve come off with the manifold? If so that is prob. mistimed.
Dr Honda
Well-Known Member
Shouldn't.
I would check the rotary valve timing too. It doesn't happen very often... but they can jump time.
Dr Honda
Well-Known Member
That would be the easy way... but you can just put a volt meter on the battery, and make sure it's between 13.5v and 14.5v when running around 5000 RPM.
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