2015 viper won’t rev up

[Rjhassard]

so I see another guy had this issue but I couldn’t get an answer I’m running a 2015 mtx with a mpi kit upgraded to run 8 lbs. every time I go to take off it’ll rev to the point of clutch engagement then shut its self down. I originally was thinking water in the fuel but I put the pickup line directly into a clean can of 111 and it’s still having the same issue. Has this happened to anyone else? Or am I missing something really obvious? I’m new to the four stroke world and would appreciate any insight some of you more experienced guys might have before I pay an arm and a leg for shop time

 

[MrSled]

so I see another guy had this issue but I couldn’t get an answer I’m running a 2015 mtx with a mpi kit upgraded to run 8 lbs. every time I go to take off it’ll rev to the point of clutch engagement then shut its self down. I originally was thinking water in the fuel but I put the pickup line directly into a clean can of 111 and it’s still having the same issue. Has this happened to anyone else? Or am I missing something really obvious? I’m new to the four stroke world and would appreciate any insight some of you more experienced guys might have before I pay an arm and a leg for shop time

Give me some more info? How did it run prior to the 8lbs change? Did you do the upgrade?

 

[maim]

check tors adjustment.

 

[MrSled]

check tors adjustment.

Right!! Throttle cable is too tight.

 

[Rjhassard]

The sled ran like a top both at 6 and 8 pounds I’ve put about 400 miles on it since going to 8 and it hasn’t skipped a beat. This is the first real issue I’ve ever had the local dealer did the upgrade. I’ll adjust throttle cable and see where that gets me thanks

 

[MrSled]

The sled ran like a top both at 6 and 8 pounds I’ve put about 400 miles on it since going to 8 and it hasn’t skipped a beat. This is the first real issue I’ve ever had the local dealer did the upgrade. I’ll adjust throttle cable and see where that gets me thanks

Strange.. check out the throttle cable.