1998 Mach 1 700 issues after 7 miles

[JB600]

This sled has been around the family its whole life, but has not been always taken care of perfectly. Anyway, we have been running it the last few years with no real issues, then this last year we could go about 7 miles and it would just shut off, no spark. Next day would start up, run fine and die after awhile. We disconnected key and or kill switch and it did not change the situation.

We plan to pull the motor next weekend and check wiring, or will this more than likely be the stator or computer? Any thoughts would be great. Will update the thread when I know more. We may not work next weekend, but will update everyone once we do tear it apart.

 

[whitedust]

Stator known problem with doo triples in late 90s.

 

[dcsnomo]

I'm not that good at working on this kind of problem, but two things other than stator come to mind. First, I don't think a 98 sled has a computer. Second, take a look at the throttle lever. There is some kind of a sensor/ cut off thing-a-ma-jig that others can describe better that might cause the problem as they can wear out. My buddy had that problem on his Cat. It's like a position sensor or something like that.

 

[whitedust]

I'm not that good at working on this kind of problem, but two things other than stator come to mind. First, I don't think a 98 sled has a computer. Second, take a look at the throttle lever. There is some kind of a sensor/ cut off thing-a-ma-jig that others can describe better that might cause the problem as they can wear out. My buddy had that problem on his Cat. It's like a position sensor or something like that.

Don't think doo 98 tripples had throttle sensor maybe but stator went out on lots of them. Mine was a no spark dead in the water breakdown but since having the no spark when heats up points to a bigger problem. Throttle semsor is more of an idle problem. Long shot but could by pass kill switch to eliminate the easy stuff.

 

[G]

Doubt there is TPS on that sled. However there would have been some kind of a stuck throttle switch somewhere. AC famous for these bad switches. Also could be a coil(s). Weird things happen with coils and sometimes very hard to figure out. Starting up fine and then dying after a little while is a famous coil symptom. They get a little warm and short out or something.