old snowmobile engines- sachs 340 - Snowmobile Forum: Your #1 Snowmobile Forum

jordanksd · 06-02-2009, 05:58 PM

its from an old moto-ski or something from the 1970's. anyone got any info on it?

**RJ Gleason** · 06-02-2009, 07:28 PM

It's a 340!!

What else do you need to know?

jordanksd · 06-03-2009, 06:15 PM

thanks i had no idea

i need to know fuel mix, what model of carb. i dont have a snowmobile, just the engine, so im new to this stuff

**smallengineguy** · 06-04-2009, 06:26 AM

Mix is 40:1, the carb should be a Tillotson, but post a pic if you can.

jordanksd · 06-04-2009, 04:31 PM

and another thing, i cant get a spark, dont blame it on me not having the wires connected

im getting electricity from the red and blue wires, but im not getting a spark on the plug, can you help?

**RJ Gleason** · 06-04-2009, 07:12 PM

If you have power to the coil, but no spark, the coil is most likely bad.

Those yellow wires are for the lights.

Carb is tillotson HR1A.

jordanksd · 06-06-2009, 08:29 AM

the coil is brand new. the meter says energy s going through the spark plug, but there is no spark. maybe i need to gap the spark plug?

**RJ Gleason** · 06-06-2009, 02:34 PM

gap at 0.020 or 0.018 .

EDGELUVER · 08-02-2009, 10:22 PM

check your points. i had a 69 scorpion with a 297 sachs and id have to change the points about once a year, or at lease sand them down a little with fine sandpaper. thats all i can think of...