running on one cylinder ???

[polarisperformance]

Ok I was ridding in a beautiful afternoon then ....the engine suddenly run on only the pto cylinder ,,,change spark plug and same thing, make good fire on both spark plug,,, so I was thinking that my motor in dead on mag side ,,,,

Now I check the compression MAG:120 and PTO: 125
- after many test , i notice that the mag side make explosion in the first stroke then stop to make explosion,,,, So the engine run only on pto side when i start it.

I remove the head to see the piston .....and all look good....

-Now i think that it could be a broken reed.

What do you think ????

 

[gunnerthesnowman]

Ok I was ridding in a beautiful afternoon then ....the engine suddenly run on only the pto cylinder ,,,change spark plug and same thing, make good fire on both spark plug,,, so I was thinking that my motor in dead on mag side ,,,,

Now I check the compression MAG:120 and PTO: 125
- after many test , i notice that the mag side make explosion in the first stroke then stop to make explosion,,,, So the engine run only on pto side when i start it.

I remove the head to see the piston .....and all look good....

-Now i think that it could be a broken reed.

What do you think ????

More info , what is the sled , if its a Pro , yes could be reed or injector ?

 

[polarisperformance]

SBA 800 2011

 

[polarisperformance]

I found a broken reed on the mag side , i found a little mark on the reed cage where the petal is broken ,,,, look like something pass into the reed cage and broke the petal.

 

[Gotmud]

^^ I had the same problem. Not sure how many miles you have but at 2300 miles mine did the exact same thing. I was told to check the reed pedals because they would start breaking at 2000 miles. That is what the problem was.