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motor swap from 750 to 920

Everything about swapping a motor on your Virago.
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motor swap from 750 to 920

PostAuthor: chauna » Thu Aug 09, 2018 7:13 pm

Been here before but lost my account information and started over …… So I guess I'm the new guy.

My question concerns a motor swap for a 1981 750cc virago

My friend says he has an engine from a 1982 920cc virago

He says the engine would mount right up with no problems, but I'm concerned about wiring issues as well as transmission. How much work would this swap really take?

My 750cc engine still runs pretty well and has 34,000 miles on it. I was thinking of doing a rebuild while I can still get the parts, though It doesn't really need it ( YET ). Or should I rebuild the 920 and install that instead. Both engines have roughly the same mileage, but I could use the larger engine.

What kind of issues could I expect to run into? Could I also swap out the instrument panel? I like the digital displays on the 920 model, and could add a gas gage to my existing tank

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Re: motor swap from 750 to 920

PostAuthor: Jake » Thu Aug 09, 2018 8:52 pm

chauna wrote:He says the engine would mount right up with no problems, but I'm concerned about wiring issues as well as transmission. How much work would this swap really take?


Your friend is correct.
No wiring differences.

You take the 750 out ( trans and engine are all one unit ), your put the 920 in. Put them side by side and you can't tell the difference without looking at the displacement stamped into the case.
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Re: motor swap from 750 to 920

PostAuthor: bstig60 » Fri Aug 10, 2018 7:25 am

The wiring on the engine is the same, but if you are going to add the 920 gauge, you would need the loom from an 82 920 or you would have to make up a wiring harness to accommodate the 920 gauge.
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Re: motor swap from 750 to 920

PostAuthor: Jake » Fri Aug 10, 2018 8:10 am

bstig60 wrote:if you are going to add the 920 gauge, you would need the loom from an 82 920 or you would have to make up a wiring harness to accommodate the 920 gauge.


:yup:

I overlooked the part about the cycom.
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