I JUST GOT AN 05 660R RAPTOR AND WHEN IT'S SITTING THERE AND YOU GIVE IT GAS IT CRACKS AND POPS WHEN REVED AT HIGH RPMS BACK AND FORTH.......ANY IDEA WHAT IT COULD BE?? LOCAL DEALER SAID IT CAOULD BE THE REV SWITCH THAT RUNS FROM THE CLUTCH HANDLE TO THE TRANNY.....SO I CUT THE WIRES AND SPLICED THEM TOGETHER TO SEE IF THAT MADE A DIFFERENCE.....AND IT DIDNT.....ANY IDEA WOULD BE GREATLY APPRICIATED.....THANKS

 

There are 4 wires that went to the clutch lever. 2 of them need to be spliced together and 2 of them need to be left loose from each other for it to run right. Also make sure the carb boots are still tight on the front of the carbs.

 

I ONLY SAW 2 IN THE BUTTON INTO THE CLUTCH LEAVER