Viper Question...

akrievins

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Joined
Jan 19, 2006
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Age
43
Location
Mississauga
Was doing a bit of drag racing with my bro this weeked. It wasn't even a challenge as he has a 2000 Ski-Doo 500. I did however get left at the starting line the very first race when I pinned the throttle. From idle I hammered the gas and my sled died completly. It just bogged down and shut off. Is this normal? I tried to start it right after that and it didn't fire up right away. I had to give it choke to get it going. Ran fine after that. I again tried putting it to the bar from idle and it did the same thing. To fix this I get the revs up a bit from stand still and then hammer it and goes like stink!!!
Can anyone explain. Is this nature of the beast?
 

Really... It seems to run incredibly otherwise. It only ever does this if I hit it from 1500rpm (dead idle) to all out in a snap of a second. If the answer is still yes, I'll get it serviced at the end of the year. I don't think I'd like to tackle carbs on my own. I'd get the PV's cleaned too. Adjusting them just seemes too difficult for me.
 
could it be tors!

I'm thinking it could be your trottle safety switch, which is called tors or something like that. If it doesn't realease right when you hammer the throttle back, it will stall the sled. It is designed to shut the sled down if the throttle is frozen in an open position and there is no pressure on the end of the lever. But needing choke to re-start a warm engine is weird. It could be straving for fuel too. How long has the sled been sitting. Sounds like there could be varnish in there too and if it isn't cleaned it could melt down your engine.
 
Last edited:
akrievins said:
Really... It seems to run incredibly otherwise. It only ever does this if I hit it from 1500rpm (dead idle) to all out in a snap of a second. If the answer is still yes, I'll get it serviced at the end of the year. I don't think I'd like to tackle carbs on my own. I'd get the PV's cleaned too. Adjusting them just seemes too difficult for me.
Unless you are not at all mechanically inclined, both the carb cleaning and the PV cleaning / adjustment are incredibly easy jobs. There is a lot of helpful info in the tech pages on this site.

If you are just not into the mechanical thing at all, then I would still get it serviced as soon as you can. Why risk causing damage to the engine?
 
Viper-Rules! said:
I'm thinking it could be your trottle safety switch, which is called tors or something like that. If it doesn't realease right when you hammer the throttle back, it will stall the sled. It is designed to shut the sled down if the throttle is frozen in an open position and there is no pressure on the end of the lever. But needing choke to re-start a warm engine is weird. It could be straving for fuel too. How long has the sled been sitting. Sounds like there could be varnish in there too and if it isn't cleaned it could melt down your engine.

Well, I've been running nothing but fresh 91 every weekend after I siphoned out old crappy gas that was sitting in there for who knows how long. It was started on that crap gas though... so maybe a carb cleaning is called for. So no one else has this if they SNAP on the gas?
 
mine done this once it was the tors, do want carbon concept sugested with the to wires if it goes away plug back in. What happen to mine was after reassembly I over ajusted yhe throtle cable(to tight) not the right amount of slack, and it was activating the tors.
 


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