Quote:
Originally Posted by jjrider
The jet number isn't always the hole size , they often go by flow rate , but not all are rated the same , I don't know offhand which ones went more to the hole size but either way I think it comes out close , it's always best to stay with 1 brand when changing jets . http://www.historicmotorcycle.org.au...carby/jets.txt
FAQ Mikuni vs keihin vs dynojet
Putting you hand over the air intake side of a carb is an old trick to force fuel up into the motor. The motor is creating vacuum and if it can't come through the carb bore it tries to come through any hole it can thus really pulls the fuel in , doesn't indicate a sign it's running lean though .
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I just obstructed the air intake a little bit. Less air more fuel ? why isn't that a sign for a lean mixture ? Please explain me ! I didn't block it completely just allowed less air to enter and it started like it should have and it ticked over really nicely. After 5 seconds I could remove my hand and it was idling nicely on choke...
I'm a bit lost now... I'm not going to drill the jets yet and the valve and seat for the bowl is closing perfectly (it has been changed 2-3 months ago by me brand new) but from time to time when I remove the carbs they leak until I kick it into place with the wood part of a hammer just smack the carb 2-3 times (easily) and it starts working.
Aren't all these sign showing me the lean condition at starting at least ?
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