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what does the hot start accutally do in a 05 crf 450 does it need to be installed for motor to run? does id cause a vaccume leak if its not there

:bonk:

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what does the hot start accutally do in a 05 crf 450 does it need to be installed for motor to run? does id cause a vaccume leak if its not there

:bonk:

Pulling the hot start lever introduces more air into the fuel air mixture.

Specifically, a hot motor is helped in starting when cool air is added to the hot combustion chamber, where gas has a tough time igniting as it is expanding from the heat.

Hot start 'plungers' in the carb body have a tendency to corrode inside the body do to diss-similar metals, and they should be removed and greased/cleaned every year.

Many bikes start fine without using the hot start....until you drop them when they are hot....

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i have a outlaw kart with a 450 on it and have a mikuni diaphram pump on it the pum seems to be fine but the motor seems tho not be pulling vacume to run the pump. do i have a leak somewhere because the motor wont fire and i do have spark

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