Cb750 ignition

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themaddrebel
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Joined: Sun Apr 20, 2014 8:04 am

Cb750 ignition

Postby themaddrebel » Thu May 10, 2018 11:52 am

Is it possible that since I'm chopping my 650, I could use basic wire harness and use points from a cb550?

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Folsoml
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Re: Cb750 ignition

Postby Folsoml » Thu May 10, 2018 8:40 pm

I'm confused by the text of your question compared to the thread title. Are you asking if CB550 or CB750 parts will work? If CB550, I highly doubt it. The CB550 used a point system (like you mention in the text) but it is not remotely similar to the pulse generator system used by the CB650 (and the CB750 as mentioned in the title). A CB750 (1979 to 1982) pulse generator looks very similar to the on the CB650, but I'm not sure if the sizes are the same.
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themaddrebel
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Joined: Sun Apr 20, 2014 8:04 am

Re: Cb750 ignition

Postby themaddrebel » Fri May 11, 2018 8:52 am

Sorry, I meant 650 in title. I figured if I swapped the cb550 points plate with the pulse plate in the 650, I could have basic ignition

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Folsoml
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Re: Cb750 ignition

Postby Folsoml » Fri May 11, 2018 7:13 pm

I'm not sure what it would take to do such a thing.
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Cb673
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Re: Cb750 ignition

Postby Cb673 » Tue Nov 27, 2018 9:24 pm

Me either, but it would be a interesting project though.

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Volker_P
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Re: Cb750 ignition

Postby Volker_P » Tue Dec 04, 2018 3:05 am

You will need a cam for the circuit breaker, too. So the crankshaft needs a modification, too.
I think the mount of the pulser magnet is screwed into the right side of the crankshaft so basically it should be removable.
Some people here got it out but I think that was not that easy because the part is quite thin and susceptible.
But no idea if it is the same for CB550 and if one can just swap these crankshaft ends.
I'd think there is a good chance but there is also a good chance that it looks basically the same but small differences will make it not that straightforward as it seems. This appears often enough when CB650 parts are to be interchanged between models.
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