new to me 90 mach 1 - Snowmobile Forum: Your #1 Snowmobile Forum

uncle al · 06-24-2008, 10:03 PM

Earlier this year I bought a 90 mach 1 to use for ice fishing here in Michigan. I had trouble starting it, so I followed Small Engine Guy's cleaning guide, and the sled started on the first pull. After riding it for awhile I parked it in the yard, and acouple of days later I was going to use it again, and it wouldn't start. Again I cleaned the carbs, put fresh gas into it, and it started on the first pull. To make a long story short, Spring came, and next to the sled was a whole bunch of dead grass that smelled like gasoline. I've got a leak somewhere. If I need to change the tank, how do I get at it. I'm going to put gas in it, and see if I can see the leak, maybe it's just a fitting. Any help is appreciated, Thanks in advance.

AL

**smallengineguy** · 06-25-2008, 06:12 AM

Hi, Al,

The leak is probably at the pickup where the line comes out of the tank, OR the carbs themselves are leaking because a needle/seat isn't workking properly. Remove the airbox so you can see everything clearly, make sure everything is dry, then fuel it up. See if you can tell where it's leaking from.

uncle al · 06-25-2008, 07:37 AM

No air box. It was removed and replaced with cone filters. I will check for leaks later today. Thanks