07 144 800R Lost power

[snobandit]

I have 650mi on my '07. Last year it ripped out of the box. Once I started getting clutch up-dates it has degraded. In November I took it in for the final clutch up-date. It hasn't pulled hard since it was new. We have two exact sleds and both sefviced at the same times. Why does one run at 1/2 the power of the other??? We have checked everything from compression and plugs to redoing the clutch for the 4th time. It is in the shop again and I I am pushing buttons on my computer on a Saturday afternoon!!

 

[Vinsanity]

updates

When they did my update they also reprogrammed my ECM which gave me better low end and better mileage , leaned it out. My friend got a bad rebuild on his clutch and lost power, also the gasket on the ECM plug wasn't seated after the reprogram and got water in his ECM that caused missing.

 

[cruehead]

Swap the clutches from one machine to the other,if no change then you know it's not the clutches.Start with the easy things first...