1995 Ski-doo Mach 1 670. My Clymer manual says BR9ES for all models 90-95. I noticed in Denis Kirk they recommend BR10ES for this particular sled.

Anyone know the correct one?

BR9ES or BR9EIX is what it recommended on NGK's parts finder

I wonder if they even have it wrong. look at 96 and it indicates a bre10es.
I swear this motor is a pre ho 670.
if you look at denise kirk specs nothing in that year had a 44mm carbl until they released the HO in 97.


BR9ES or BR9EIX is what it recommended on NGK's parts finde[/b]

1995 Ski-doo Mach 1 670. My Clymer manual says BR9ES for all models 90-95. I noticed in Denis Kirk they recommend BR10ES for this particular sled.

Anyone know the correct one?[/b]
A ngk b10es is used in modifide formula engines or b10ev, your mach 1 is bad ### power, mabe it has more compresion stock then like my mxz 670(br9es), so dennis kirk calls for a br10es to match your horse power.

According to the Ingles microfiche BR9ES

Click (http://216.37.204.206/ingles/Skidoo_oem/Skidoo.asp?Type=13&A=193&B=9)