Hello I have an unusual question. Is a swap of 94' engine case with '86 internals possible. I am hoping it is a direct swap. I do understand that the crank, balancer and final drive has to be delt with. are there any problems with the clutch, water pump ,transmission or heads. thanks for any insight or previous experience.
engine case swap
- Thread starter wayne billings
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AFAIK yes a swap is possible but the pick-up coils are different. 2 on the '86 & 1 on the '94. The generator rotor is different to account for that. Wire harness is different also. The gauges cluster may have a difference also. Do a site search for that information.
Yes, will need to re-size your plane bearings for the crank, rods, and balancer. Probably check clearances of transmission shafts and middle gear too.
Mark
Mark
What is AFAIK ? Thank you for the info. Everything is going to go right back in the '86 frame, so i am thinking the electrics will be the same. Does that sound right? Thanks again for your time and expertise.
As Far As I Know. That's fine. Cases are mated to the internals so if changing the cases, will need to re-do the plane bearings, etc. I don't think you need to worry about the final drive.
Mark
Mark
Maleko 89, thanks and tanks to fire medic
Another question , Is there a source for engine bearings that is more affordable than motosport or partsilla ? Thanks again for everyones help, this forum is worth more than we know. CHEERS
In '96 the new style oil filter was introduced, which also required a change in the frame cross-brace between the 2 downtubes to having it curve in a semi-circle around the spin-on filter. Since yours is a '94, this is not an issue.
https://ia800204.us.archive.org/14/...ice-manual/yamahavmaxvmx12-service-manual.pdf
The factory manual will help you to select the proper clearance bearings.
https://ia800204.us.archive.org/14/...ice-manual/yamahavmaxvmx12-service-manual.pdf
The factory manual will help you to select the proper clearance bearings.
Most parts will swap over without issue. You will need to refit bearings to match the bore specs of the new cases. There isn't much cheaper out there and no aftermarket options for bearings.
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