mmx600
New member
what sled did the 640cc come with ???
Gorkon
New member
SW 643, GP 643 and SR 643. Two years only, 72 and 73. G.
Waters88
New member
There was also an EW643 made in those years
mmx600
New member
i have one of these in a lawn tractor
Gorkon
New member
Yes, actually I was mistaken, there was no SW 643, at least not for CANADA that I know of. It was the EW and it was hydraulic. That and it was only in 73, the GP's are the only ones that were both 72 and 73. Does anyone know if there was an SW 643? G.
my dad still has three of these engines never instaled in sleds and one brand new tunnel 2 are ew 1 is a gp he still has lots of old yamaha stuff used to be a dealer back in the day
Gorkon
New member
Wow! That's pretty cool, would love some of that stuff! I've got a neat idea for one of those engines! G.