Hello, I'm Gatch. Long time lurker, even longer time poster.
I have a question for the lore masters of bucket fettling.
What would the symptoms of a blocked pilot air jet be ?
Would it include (but not be limited to) bike running like a one legged man and be EXTREMELY hard starting ?
I'm just now trying to figure out how the fuck ACVs work. I know they block air to the pilot jet under decel (so same situ as you're talking about), and this causes more fuel to be added, which counteracts the leaning out of the manifold. You could try winding the fuel screws in and seeing if it gets better?
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
Sorry gatch i thought it was an excuse for some non performance?
Was it a real question?
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Kinky is using a feather. Perverted is using the whole chicken
No I'm genuinely having trouble getting this to run.
I had it going (very poorly) at kaitoke last year. Wouldn't rev at all over 4-5k. Since then it has sat untouched in my friends shed. Was delivered back to my house just this weekend. I've spent a few hours last night and tonight trying to get it to run again, but am having no luck.
Timing is good, points gap is good, plug gap is good. I pulled the plug and earthed it against the motor, spinning the wheel on the stand in 5th produces a nice spark. Yet when I try crash starting it, it doesn't even produce a pop or bang.
The carb should be ok, there is no fuel leaks, the jet in it should be in the ball park for good running, the manifold is sealed against the motor and the back of the carb. No holes are blocked, the needle is straight etc.
When the motor was put together, it turned nicely by hand (with no plug in) and produced good compression.
The only thing I can think is that the gas is too old and is too rotten. I have since lost the key to the tank. So may have to rig up something temporarily.
Any suggestions would be awesome.
What passes for petrol now is designed to have a shelf life of around ten days....over a year and you've got a foul smelling liquid which requires a lightning strike to ignite.
When you've restored your alcohol levels break the lock on the tank cap....
As gumph said the fuel has probably turned into something awful. Ditch that put some fresh stuff in and try again. Nothing else sounds like it has changed since the last time it ran. I've started taking the fuel out of our buckets and putting it in the van between race meets, not sure if it makes them run any better but it does make them easier to start for the first time they have run in a month.
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