starting problem

[rocker79]

hi
the battery in my gs 750 83' turns the engine really slow een when the starter motor has bben rebuilt. when i connect it to a car battery of 12 volts but much higher amp the engine turns really really fast.the bike starts instantaniously.is that a problem with the solenoid or the battery (it is new, the battery).would it hurt the bike if i install a car battery permanantly?
the other thing is that th bike came wuthout an air cleaner from the previous owner.now i cant get hold of a new or usd one as it is an offmarket bike in pakistan.any remedies.
i just rebuilt it to an oversize and it does not seem to have much torque.
it starts ok ,runs ok but no torque .any suggestins?

[kahuna]

air box and torque

reduce your front gear size or enlarge the rear sprocket toothcount.Ripout the stock carbs and slap in some smoothbores,I have 29's on mine but I feel the 750 motor could handle 32mm.Then put on a good 4-1 exhaust and that should get you started.About the car battery,your gonna burn up your charging system.be careful.Secondly the idea is less wait as possible so you can drink more beers.Out

[SqDancerLynn1]

The enging may still be tight from the rebuild needing a few miles to loosen up

[hungryman]

Sounds like a bad battery - even new ones can be bad BTW.

You can use a car battery if you like with no ill effects - if you can mount it.

No torque? Hard to say. Check the compression. Did you clean and sync the carbs?