any ideas of an engine swap??

Big D

New Member
Jun 20, 2011
86
2
6
Wisconsin
hey guys 79xs totally enspired me to do an engine swap!! let me now with any ideas you guys have on an engine! i want one that hasnt been done before. THANKS!!!I:I
 
It would be sorta cool if you could stuff a banshee motor in a blaster. That thing would tear your arms off and beat you to death fast and I dont think it's been done.
 
Only a 2 stroke!
Forget an old xs it's a 4stroke that doesn't make much more HP then a worked stock motor and weighs alot more too.
 
Only a 2 stroke!
Forget an old xs it's a 4stroke that doesn't make much more HP then a worked stock motor and weighs alot more too.

WHAT????! How did I let this go on without knowing....


I have bias opinion since I own and work on a lot of 70s/80s Yamaha XS bikes... There are lots of cool engines to swap... but price and the amount of work it takes will all come into play. I have seen a lot of XS650 motor swaps into dirt bikes for hill climbs. There is a very large aftermarket for the motor. The biggest problem is that the motor will need work.. My 550 motor was 150 bucks... All the tuneup parts: 300 bucks (newer set of carbs, intake boots, coils, valve cover gasket, sprocket)

That being said, I think a XS650 would be a cool swap.. but i have no idea how "useful" the quad would be? just keep in mind its a tall motor.

Engine : 21 inches tall... about the same hight as my 550 motor.
Engine cases: 15 inches wide

Bike swaps:

Champion_XS650.jpg

IMG_1501.jpg

PhilAmat002.jpg

XS650_Dirtbike.jpg

YZ650b.jpg

xs650dualsport.jpg
 
That's funny, I was thinking about one in a Warior. I had a XS650 way back that I put 20,000 miles on in one year. Rode it till weatherman said it was 32* out.