Engine Backfires

[Snowblood]

I had my carbs serviced at a new dealer in town because the 2002 legend wouldn't start. It seemed to run rough so I checked the plugs and found them gapped wrong. They gapped them in thousands instead of metric. This and the fact it took them 3 days to clean the carbs tell me they are kinda clueless.

Now here's my problem, the machine backfires when shutting down and is still hard to start. I called Bombie to see if I could take it to a different dealer to repair under this dealers 90 day warranty and was told I have to deal with them.

What should I do? Forget this dealer and try another or demand this dealer to do the job right?

???

[LB700]

Your dealer sounds scary (although everyone makes mistakes once in a while)

I think if it were me, that I would look for another (as long as you don't have to travel too far).

I like to support my local dealer as much as possible, but if they are out to lunch, then they don't deserve your business. (any mechanic that can't gap plugs properly, would not get anywhere near MY machine!)

[oldyeller]

You can deal with any dealer you like as long as your machine is under warranty.They should have gapped your plugs properly but I doubt that is whats causing your problems as long as the gap is within reason.(i usually just run them out of the box with no problems).When you say the sled is backfiring when you shut if off,is the sled idling fast and then building up gas in the muffler when you shut it off.This usually results in a big bang out of the exhaust just as the engine stops turning.Or when you restart it will give a big bang out of the exhaust.This can also be caused by a real rich condition.

[Krusty]

Might want to check your reeds.

[zeng62]

I agree with oldyeller and krusty, check and see if the chokes are
adjusted correctly, you need some free play in the lever.
Backfires are hard on reeds, my 670 use to do this after a long wot
run then quick shut down. ??? ???

[Machzzzz1]

It sounds to me like the carbs were not put on proberly and are loose.

[rob7374]

This seems like a normal issue with the newer Doo's. All the newer twins do this around here. It actually seems like a lean condition at idle. What I usually do is crack the choke a few times to bring the idle down and let it idle for an extra 30 seconds or so. This usually cures the backfiring or at least makes it so you can live with it. I leaned my carbs out further because the sled was very rich at cruising speed and top end and this made the backfiring a little worse and it is harder to start now. I'll have to play with the carbs some more.

[Snowblood]

Thanks to all with my question. You guys might not be as good as having a Ski-Doo mechanic as my next door neighbor but you sure are damm close.

I plan on taking it back to the dealer who did the work armed with your replies. Wish me luck!

[Downriver Thunder]

Be sure to let us know what happens.

[03Adrenaline600ho]

Hey LB700 what do you mean by "gapping plugs"???





J/K