Ski doo 850 factory turbo cutting out

[Fraser1412]

When I go WOT for greater than 8-12 seconds the engine and turbo fully cuts out for a split second, then it kicks back in again full power. I'm wondering if anyone else seems to have this problem?

I have 500km on the sled now and 200 of that has been off brake in with no change.

I only run fresh shell 91 non-ethanol fuel

If I actually bark the throttle before it cuts out it seems to eliminate the problem. I don't plan on taking it to the dealer and waiting 8 weeks for a repair during prime season.

 

[Merc63]

Mine pulls solid and hard, no cut out. My buddy got stuck said his did this the other day. Water in fuel?

 

[Fraser1412]

It's been the same for 500km lots of fuel burnt

 

[Caper11]

Whats the rpm and the snow conditions at the time of the cutout?

 

[rknight111]

Sounds like rev-limiter. I change the bolts in primary and add the washers that will bring your RPM to 8100.

 

[Fraser1412]

Deep snow, rpm doesn't go over 8000

 

[rknight111]

Deep snow, rpm doesn't go over 8000

How do you see the gauge in deep snow to see the RPM? Mine is always just covered in snow. First photo is Maxwell. I’m sure he can’t see his in deep pow to confirm rpm.

 

[Caper11]

Intakes plugged?

 

[niner]

Deep snow, rpm doesn't go over 8000

Not sure if this applies but on my 99 summitX they had inline fuel filters that would plug.Took forever to get this diagnosis but finally found the problem, is there fuel filters on the G4?

 

[maxwell]

Not sure if this applies but on my 99 summitX they had inline fuel filters that would plug.Took forever to get this diagnosis but finally found the problem, is there fuel filters on the G4?

There is! Shouldn’t be plugged this soon though


We’re your intakes all covered during that 12 seconds?

 

[snopro]

Does it sound like an electrical cut out or a more bog like cut out?

 

[Mcstuck87]

There is! Shouldn’t be plugged this soon though


We’re your intakes all covered during that 12 seconds?

Maxwell, could it be a spark plug wires ?! lol jk .. sorry I just had to cause I remember the etec issue you fought forever that I read about.

Fraser have you checked your wire connections and any lines that show signs of being pinched?

 

[fredw]

Seen one on Sunday do something similar, if he let off wot and run around 3/4 it would be fine .. seamed like a tps issue.. could not believe he never poped a reed, with all the back firing that thing did that day

I feel for you, Warrenty means wait a month to get sled back, been there my self.. call redline and quiz Dave on it, I think he said he’s dealt with a few of them..

 

[skegpro]

Maybe an injector cutting out.....
Partially broken wire in the harness........

 

[snopro]

Yep could be a million things. Plug it into BUD's and report back.

 

[Caper11]

If its a 2021 gauge, you can check for codes in the settings.

 

[Shitfly]

Don’t run the same sled but had issues before with cutting out/bogging while running wot for extended periods before, my diagnosis was the springs off the y-pipe were weak and the donut was wearing out, losing all pipe pressure.., worth a quick check, could be a cheap easy fix

 

[adamg]

Don’t run the same sled but had issues before with cutting out/bogging while running wot for extended periods before, my diagnosis was the springs off the y-pipe were weak and the donut was wearing out, losing all pipe pressure.., worth a quick check, could be a cheap easy fix

#turboproblems

 

[Fraser1412]

If its a 2021 gauge, you can check for codes in the settings.

No fault codes showing

 

[oler1234]

It’s been known that the springs at the turbo break, potential culprit and easy to check.