SOHC.co.uk Forums > CB750

not starting with push button

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El__burro:
I have bridged the two solenoid terminals and it does a little spark and I can see some fumes coming from the (sealed) battery; still doesn't turn the motor.
Could it be shorted somehow?

thanks
el__burro

hairygit:
Possibly. I would remove the starter (remove cable from solenoid, remove chrome starter cover, then 2 bolts from starter and lever starter to points side of bike about 20mm, then lift out) and test with a known good battery. If it doesn't work then, time to see what state the brushes are in (not too expensive ;D) and replace if badly worn, or buy a s/h starter motor. Good luck.

steff750:

--- Quote --- I can see some fumes coming from the (sealed) battery;
--- End quote ---

i would say your battery is toast and get a new one any voltage reading under 12.6 and the battery has had its day in my book

hairygit:
I figured using a car battery would preclude this possibility, but a new battery sounds a good idea, but the motor needs checking if it didn't turn on a car battery

El__burro:
tried the car battery but it has made no difference,
while the engine was running I pressed the push start button and realised that it was cutting off the engine.
Definitely a short somewhere, looked at push button and the hearth but it all good.
Ive tried to remove the motor but after removing both bolts it wont came out. (not really trying as I am sure it works fine [it did until this issue]).

El__burro

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