Winder cuts out

[ClutchMaster]

Your sled also has a barometric pressure sensor, if this sensor isn’t working correctly fueling issues your having could be related.
I tried to find some method of testing but got nothing from the manual.
If you get good readings on the air temp sensor I would suspect the baro sensor.

 

[ClutchMaster]

An inaccuracy in either the temp sensor or the baro sensor will cause similar issues.

Pic of air temp sensor location.

 

[ClutchMaster]

Your air temp sensor has a negative temperature coefficient, meaning as temperature increases the resistance goes down. Most fail open, if this were to happen your sled would run rich, yours is lean. This leads me to believe it will check out OK, but check it anyway.

 

[Another Phase]

View attachment 152056

@68 degrees Fahrenheit the sensor should read 12.5k ohms.

That's great, thanks. I'll check that this weekend. Much appreciated.

 

[ClutchMaster]

That's great, thanks. I'll check that this weekend. Much appreciated.

You mentioned you had one plug discolored, it could be just a stuck injector. Was the plug black or white?

 

[apexhank]

I had a similar issue last year with my 19 Winder. As it turned out I had inadvertently put reg 87 octane in. I put 92 in next time and didn’t have a problem. In an effort to confirm, I ran a couple tanks of 92, then put about 3/4 tank of 87. Bingo same thing happened, punch throttle hard and engine had a long hesitation, then kicked in. I now have 3600 miles on and no more issues. I had about 3 - 400 miles on when I had the problem, but now it launches like a scud missile everytime. Thankfully it turned out to be operator error.

Hank

 

[Another Phase]

Your air temp sensor has a negative temperature coefficient, meaning as temperature increases the resistance goes down. Most fail open, if this were to happen your sled would run rich, yours is lean. This leads me to believe it will check out OK, but check it anyway.

Will do.

 

[Another Phase]

You mentioned you had one plug discolored, it could be just a stuck injector. Was the plug black or white?

Plug was white.

 

[Another Phase]

I had a similar issue last year with my 19 Winder. As it turned out I had inadvertently put reg 87 octane in. I put 92 in next time and didn’t have a problem. In an effort to confirm, I ran a couple tanks of 92, then put about 3/4 tank of 87. Bingo same thing happened, punch throttle hard and engine had a long hesitation, then kicked in. I now have 3600 miles on and no more issues. I had about 3 - 400 miles on when I had the problem, but now it launches like a scud missile everytime. Thankfully it turned out to be operator error.

Hank

Fuel is fresh Premium 92

 

[ClutchMaster]

Plug was white.

The other plugs tan?

 

[ClutchMaster]

Did you take pics of the plugs?

 

[ClutchMaster]

If one plug is white and the other two are tan you’ve probably got a dirty/bad injector.

Be nice to see a pic

 

[geez150]

Clutch where did you get a shop manual for the winder?

 

[Another Phase]

If one plug is white and the other two are tan you’ve probably got a dirty/bad injector.

Be nice to see a pic

The other two were darker. I wouldn't say tan, they were darker, but had also endured a 50 mile run back to the trailer at a blistering 30 mph. Sorry, no pics.

 

[ClutchMaster]

Clutch where did you get a shop manual for the winder?

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