91 mach 670?? - Snowmobile Forum: Your #1 Snowmobile Forum

~James408~ · 03-04-2006, 03:19 PM

Alright well me and my dad were lookin through the bargain finder and spotted a 91 mach 1 with a 670cc in it. When did they begin producing the 670, I remember hearing 93 but im not sure and what were all the engine options to come from the 91 line up and what might be in this one. And how close would the chassis and all parts be to a 92 with a 617.
Thanks for the replies

skidooguy700 · 03-04-2006, 08:49 PM

I think that's a typo or the guy that has the sled doesn't know what it is. They didn't make a 670 until 93. If the sled is a 91 mach 1 with a stock motor it can only be a 617. As for the chassis they are identical i believe for mx, plus, mach 1 from 91-93

**smallengineguy** · 03-05-2006, 06:34 AM

I KNOW they made the 670 in 1992, because a dealer here in NH had one I almost bought. Manufacture date Oct 1991. Not sure if the 91's had them, though.

BRPforlife · 03-05-2006, 08:46 AM

I thought they started in '93 aswell, but I guess I was wrong. There was a guy on here before that bought a mach that he was told had a 670 but it turned out to be a 617..... Probably because they sounds the same.

skidooguy700 · 03-06-2006, 03:47 PM

according to kbb.com ski-doo didn't have a 670 until the '93 model year.

houlezed300 · 03-09-2006, 07:32 AM

Ask the fellow for the model/serial number. If it was manufactured in 1991, and you can get this information, I might have some interesting info for you.