Forum Donations
Search
VTF Google Search
 Click Here

750 engine swap

Everything about swapping a motor on your Virago.
  • Advertisement

Post a reply

750 engine swap

PostAuthor: Nick beale » Fri Feb 09, 2018 2:47 pm

Hi hope you can help. I have an early 750 Virago with the bendix type starter which never worked so have changed the motor to the later type with the updated starter system. All fitted OK but have a problem the wires coming from the generator are different? So what do I need to do, is it a case of changing the generator internals into the new motor or is there a easier fix. The reason for the motor change was because of the starter problems. Please help it must be a tried and tested swap. Thanks

Nick beale
Junior Membership
Junior Membership
 
Posts: 10
Joined: Fri Feb 09, 2018 2:23 pm
  Flag
Bike year & model: XV 750virago
Sex: Male

Re: 750 engine swap

PostAuthor: faffi » Fri Feb 09, 2018 4:11 pm

Ignition and alternator differ, so you will need a new R/R, new TCI and new coils. Unless it is possible to retrofit the items from your old engine? That is something I cannot answer. Also, all Gen II 750 engines are not the same, so you need to verify what system is fitted to your particular engine.
User avatar
faffi
Silver Membership
Silver Membership
 
Posts: 2331
Images: 10
Joined: Sun Feb 15, 2015 3:11 pm
  Flag
Bike year & model: 1982 XV750SE with XV1100 engine, XT600Z shock absorber, 18" Seca rear wheel
Sex: Male

Re: 750 engine swap

PostAuthor: Nick beale » Fri Feb 09, 2018 4:32 pm

Can I take the internal parts from the old casing and refit them in the new casing?

Nick beale
Junior Membership
Junior Membership
 
Posts: 10
Joined: Fri Feb 09, 2018 2:23 pm
  Flag
Bike year & model: XV 750virago
Sex: Male

Re: 750 engine swap

PostAuthor: faffi » Fri Feb 09, 2018 6:29 pm

Someone else must answer that, or you can try searching the site. It may be enough to change the stator and pickups.
User avatar
faffi
Silver Membership
Silver Membership
 
Posts: 2331
Images: 10
Joined: Sun Feb 15, 2015 3:11 pm
  Flag
Bike year & model: 1982 XV750SE with XV1100 engine, XT600Z shock absorber, 18" Seca rear wheel
Sex: Male

Re: 750 engine swap

PostAuthor: Nick beale » Sat Feb 10, 2018 12:38 pm

I have just looked inside the old casing, the generator wires are the same but the ignition pickup coils wires are different, the old motor has two wires and the newer one has four. It would seem to me if I changed the pick up coils over that would do the trick but will they fit the newer motor? Please help

Nick beale
Junior Membership
Junior Membership
 
Posts: 10
Joined: Fri Feb 09, 2018 2:23 pm
  Flag
Bike year & model: XV 750virago
Sex: Male

Re: 750 engine swap

PostAuthor: Jake » Sat Feb 10, 2018 2:26 pm

You don’t say what year the “new” 750 is, and it could be the pickups are the issue.

Check this thread, it may have the answer you need https://www.viragotechforum.com/viewtop ... =5&t=54789
_______________________________________________________________________
“It ain’t what you don’t know that gets you in trouble.
It’s what you know for sure that just ain’t so.”

~Mark Twain


Image


Registration terms
http://viragotechforum.com/ucp.php?mode=register&sid=5dabff9cd3a242150feeac02250c76c6
User avatar
Jake
Mod
Mod
 
Posts: 11180
Images: 114
Joined: Wed Jun 06, 2007 3:18 pm
Location: Sometimes where I want to be, other times, maybe not. Flag
Bike year & model: 1996 XV750
Sex: Male

Re: 750 engine swap

PostAuthor: Nick beale » Sat Feb 10, 2018 3:28 pm

Have a look at this picture I'm not sure of the years

https://photos.app.goo.gl/VqsUHMYM0jMMYa9s1

Nick beale
Junior Membership
Junior Membership
 
Posts: 10
Joined: Fri Feb 09, 2018 2:23 pm
  Flag
Bike year & model: XV 750virago
Sex: Male

Re: 750 engine swap

PostAuthor: Nick beale » Sat Feb 10, 2018 3:30 pm

I think the old motor is 91 and the new one is 93.

Nick beale
Junior Membership
Junior Membership
 
Posts: 10
Joined: Fri Feb 09, 2018 2:23 pm
  Flag
Bike year & model: XV 750virago
Sex: Male

Re: 750 engine swap

PostAuthor: Nick beale » Sat Feb 10, 2018 3:31 pm

Cyes the pickups are the issue

Nick beale
Junior Membership
Junior Membership
 
Posts: 10
Joined: Fri Feb 09, 2018 2:23 pm
  Flag
Bike year & model: XV 750virago
Sex: Male

Re: 750 engine swap

PostAuthor: Nick beale » Sun Feb 11, 2018 4:02 pm

Right the newer engine has a single ignition pickup the older original motor has two with a three bolt fixing but the newer one has a spare bolt mount giving three mounts so can I swap the older one into the new motor this would solve my problem.... Can someone please help?

Nick beale
Junior Membership
Junior Membership
 
Posts: 10
Joined: Fri Feb 09, 2018 2:23 pm
  Flag
Bike year & model: XV 750virago
Sex: Male



Post a reply


  • Advertisement

Return to Virago Help - Motor Swap

Who is online

Registered users: Cusstout 1100, Damon173, gigafunk, Google [Bot], rdtbull, Wesso, Yahoo [Bot]