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The ratio is 40:1 on this snowmobile.
Actually, snowmobiles run on fuel so it's fuel power. Although they are working on it, they haven't made the snowmobile that runs on horses yet.
there could be many reasons, but you need to elaborate on your question, that is too vauge to answer... is it a snowmobile? is it an atv? are the spark plugs clean? is fuel flowing to the carb? does it backfire?
fossil fuels
unburned fuel in the exhaust ignites
First check compression. This can be done by putting a finger over the spark plug holes. There should be a good pop of air out of them. If you have compression and spark, next pour a little fuel in plug holes see if you can get it to try to run, if it does the fuel may not be getting through the carbs.
Regular 87 octane.
30:1
30:1
I have both a 1996 arctic cat 580 pantera efi (electronic fuel ingection) and a 1996 ski-doo 580 grand touring. I have been able to test both these models a the arctic cat will top out at 80MPH and I have gotten my ski-doo to 96 MPH on a lake in about 1000 feet but I ran out of room. If you go to ski-doo.com then click on rotax challenge it will show you a video of newmorous snowmobile brands so it is a easy desicion for me because of yaers riding a ski-doo and a arctic cat but personaly I like the ski-doo more than the arcic cat. but the new Z1 turbo can beat ski-doo any day if your looking for speed
40:1 from what I've read
Many things can cause a snowmobile engine to back fire. Ignition coils ( spark plugs, coils) or water in fuel. Check these and maybe it will solve your problems.