06 RMK 700 loss of power at full throttle.

[Muskyhunter22]

I just purchased this sled with 2100 miles with a fresh lower rebuild. Starts up great and rides fine around 50mph. But when you give it full throttle it immediately bogs back down and gives a flashing check engine light. I'm pretty new on working on sleds. So trying to get some help on where to start.

 

[850Switchback]

I would start by looking in the owners manual to see what the flashing light means, I suspect it means the engine is detonating. You can get a electronic copy from Polaris at the link below if you don't have the original one.
With a fresh rebuild, its possible someone didn't torque the detonation sensor properly which makes them false read.

Owner's Manuals | Polaris Snowmobiles

Find and download the owner's manual for your snowmoile by selecting its year and model.

snowmobiles.polaris.com

 

[Muskyhunter22]

I would start by looking in the owners manual to see what the flashing light means, I suspect it means the engine is detonating. You can get a electronic copy from Polaris at the link below if you don't have the original one.
With a fresh rebuild, its possible someone didn't torque the detonation sensor properly which makes them false read.

Owner's Manuals | Polaris Snowmobiles

Find and download the owner's manual for your snowmoile by selecting its year and model.

snowmobiles.polaris.com

Thanks I will look into that!