sick sled

[Guest]

i have a 1993 arctic cat EXT550 with efi, and i've been having problems with it, whenever i hit the gas, hard or not, it'll bog down, it feels like carboned up carbs on a regular sled, but like i said, it has efi, so i don't know what's wrong, some have said it's the computer system, but if anyone know's what's wrong please help me out.

thanks

[jkrash]

GG

Chance's are that your clutches need to be rebuilt.
If the engine idles fine and cleans up after the bog it sounds like the clutches are just shifting out to quick and resulting in a bog.You probably have worn parts in the clutches.

[Bigred70]

Another thing that could cause this condition is a worn drive belt. When the belts wear, the overall belt width is diminished, causing it to ride lower in the secondary clutch, resulting in a "taller" starting gear. The net result is similar to trying to begin moving your truck in third gear...it just doesnt want to move. It's literally amazing what a new (properly-sized) belt can do for the overall performance of a snowmobile.

[hooksetter]

Good advice. I have a '97 Arctic Cat ZR580 efi that started doing the same thing at the end of last season. Could it have anything to do with the injectors?

[Guest]

If it is excessive bog it will not be from the belt or warm clutch parts.

The injectors may either be partially plugged (common after summer storage), or may be faulty. Try the 1,2,3 spark plug boot removal, and if the problem doesn't change with any one of the spark plug boots removed then you have found your bad cylinder.

Carbuerated sleds are much easier to diagnose and work on.

PCG

[Guest]

I'll put 100 bucks on that the clutch weights are worn. Your best bet is to take it in and ask if thats the problem, and If it is, Get a rebuilt comet clutch for around $115

[Guest]

We could all bet $100 on what the deal is if we heard the sled doing this for our own ears....But we can't.

It bogs...Does it bog, or dog? Does it slug slightly, or is it more of a lug? Different things to different people.

An easier question....If you get the engine to "bog", will it stall if you hold the throttle in that spot? Or do you have to let off or pump the gas to get it to rev up more?

PCG

[Guest]

yes, it dogs, and lugs, i can baby the throttle and get it up to about 60mph, but if i hit the throttle any more, it'll dog, and yes, if i hit the throttle too hard, i do have to let off, and pump it to get the revs up again, hey thanks for the help

[Guest]

Hey, Its my $100. I have had one sled do it and my dad has had 2 do it, And my uncle had one do it. All 4 needed the clutches rebuilt. My current sled is 98 zl 500. This is a pretty snappy sled, and last year it got doggier and doggier. I redid the clutch and I was able to get the skis off the ground just like the first day I brought it home. Most of the time its the bushings that hold the weights. Those bushings get worn and the clutch engages too fast causing the engine bog down. By feathering the throttle you're letting the clutch back out and allowing that suzuki to catch up. Since all these events I make sure to reset the weights and bushing every two years just to get peak performance. I don't like to admit it but its just an artic cat thing. Sooner or later I'm gonna put in a black magic clutch So hopefully i can solve the problem, and if not, it's much easier on that style of clutch. So i'll put in an extra 50 just because.

[Guest]

Just an honest question....

Why if all these Arctic Cats keep doing the same thing over and over....do you still buy them? The clutch seems to just wear out. That's normal, oh well. For every time you change your hi-fax you have to replace your clutch and associated parts twice.

I guess I don't really know much about snowmobiles, I just ride them to the Crappie spots.

PCG

[Guest]

Well, its not completely necessary to do so but I go through my sled every season to get it ready, and I got extra time and bushings aren't too much. I used to be a hardcore rider and put on 250 miles in a day up in the north country. Now Most of my time is on the lake so my machine sits a little more. Its a toy, it breaks, And I get a little too rough with it sometimes. Its not the equipment, its the operator.

[Guest]

Snowmobiles were designed to break and milk your wallets dry. That's what every snowmobile owner must face regardless of the manufacturer, model, etc. I'll tell you this...the more complicated these things get, the more they will break. If you want simple, stick to a fan cooled machine with no fancy gadgets to go wrong.

I have owner many, many sleds and by far the best sled I have ever owned is my '97 AC ZL440. It rides the trails like a dream and pulls all my ice fishing gear and 4X8 shack everywhere I want it to go. It gets a lot of abuse, but yet fairly simple design that keeps taking the abuse and keeps going....

GG-
If you're not fouling plugs while that engine is dogging out, then the next obvious option to look at is the clutching. Get it re-built or replaced before the snow starts to fall! Good luck.

[bluebill97]

I had a 93 indy 500 efi and I had the same problem with the bog, I had the clutch rebuilt and it was as good as new. At least have your clutch checked, if its a 93 you probubly need a clutch rebuild anyway if there is allot of miles on it. hope this helpes.

[Guest]

Sounds like the clutch is your culprit to me.

Hopefully you get that machine ready to go for ice-up.

Hope to be out by Thanksgiving.

Kevin