high rpm issues

[highmarker800]

I have a 2016 summit t3, near the end of the season I could not get to 7900 rpm, It would start out at 7900-8000 rpm and then die off to 7500-7600 rpm. I had the dealer rebuild the primary near the end of the season as well. i put a new belt on and I am all the way up to the 6th clicker to get that kind of rpm. Anyone else come across this issue before?

 

[Cableguy]

check your rave valves also

 

[mountainsledmania]

cable guy is on the rite track. could be rave valves. put it on a stand . remove rave cover. start sled and watch to see what they do. they should sick in. once warm you can give it wot reach in a pull the valve open and see what it does. I've never had to clean them before but it could be worth looking into

 

[treeboy]

Did the dealer put a new spring in?

 

[catrutt]

New springs primary and secondary from racers edge was the fix for my t3 way better shifting and smoother 2000 km on one belt also.

 

[drew562]

I have a 2016 summit t3, near the end of the season I could not get to 7900 rpm, It would start out at 7900-8000 rpm and then die off to 7500-7600 rpm. I had the dealer rebuild the primary near the end of the season as well. i put a new belt on and I am all the way up to the 6th clicker to get that kind of rpm. Anyone else come across this issue before?

I've had 11 xm since 2012. 8 of them pulled down. Long pulls and hot weather cause the computer to pull timing to save the motor. Total piss off. Some sleds climb all day a 8000 and some don't. I've spent thousands trying to rectify this. Thermostats. Team clutches. Rave mods or removal of raves. Also some doos will do this with something as simple as a can on it.

 

[kanedog]

How many kms? What type of riding? Trail, mild, agressive mountain?

 

[Caper11]

I have a 2016 summit t3, near the end of the season I could not get to 7900 rpm, It would start out at 7900-8000 rpm and then die off to 7500-7600 rpm. I had the dealer rebuild the primary near the end of the season as well. i put a new belt on and I am all the way up to the 6th clicker to get that kind of rpm. Anyone else come across this issue before?

I would look into the raves. Ive heard that there was a issue with the raves from a doo tech. My brothers 16 T3 sled had rave issues.

 

[Deano670]

We do a Ton of ski doo work, 2 items I check here before anything else gets touched are fuel pressure to ensure pump, regulator and injectors are functioning properly and carbon build up in the y pipes. Fuel pressure is probably the most over looked and problematic area on an etec.

Deano

Mad Motorsports

 

[sledneckx69]

You can get the fuel system tested at skidoo, but that might not tell the whole story. The fuel pump may start to loose pressure as it warms up, leaning the sled out, computer goes into a self-preservation mode and retards the timing to keep it from blowing up. Getting worse over time. A sign of this can be very sooty black plugs. As was the case in mine, just dont buy the skidoo fuel pump assembly, you can get the internal part (the actual pump unit) aftermarket for about 1/6 the cost. Just 10 more minutes of labor is all that is required. Unless it's still under warranty of course, mine was also a 2016 t3. There is also a service bulletin of the fuel pump regulator falling off/coming loose inside the tank. They can scope it and tell you in about 10 minutes.

 

[RGM]

We do a Ton of ski doo work, 2 items I check here before anything else gets touched are fuel pressure to ensure pump, regulator and injectors are functioning properly and carbon build up in the y pipes. Fuel pressure is probably the most over looked and problematic area on an etec.

Deano

Mad Motorsports

is it usually the pump or regulator that causes low fuel pressure?

 

[Deano670]

I have found its more often the regulator bypassing than it is the pump failing itself. Its a matter of why and then fixing the source of the problem, not putting a band aid on it only to have it fail again. I have all the brp tools here to accurately diagnose fuel pressure.

Dean

Mad Motorsports