Raptor piping/jetting
#1
Raptor piping/jetting
I have another question for you all. The help with the choke cable was great, and was one of the problems that we found on my friends 2001 Raptor. He just got it back with some more warrenty work done on it, the second stator and the rear axle bearings. It still doesn't seem to be running right, and he went through way too much gas the last time we went riding on the river (frozen). As he was shifting into 5th gear I was going by him, and he said it seemed to dog out really bad. We were on some hard packed snow, from the sleds packing it down. I wasn't having any problems making r's, but he was in high gear. It would take off like it should from a stop, really got up and went. It was just in the highter gear that he was having power problems. He is running a T-4 Pro Circuit Slip On, K&N Air Filter and Outerware, 12 tooth sprocket and the needle clips are set one notch up. No jetting. Could this be the problem? Choke cable is now working free and easy. Any help would be great!!!
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#5
Raptor piping/jetting
Whats your altittude? 3000' and under he needs to jet up with a slip on and K&N filter. I assume that is a stock style filter that requires the lid to be on. I would go up one size maybe 2 sizes to a 145 left carb 150 right carb or 150 left and 155 right. Put the needles on the 4th groove from top, fuel air screws out 2 1/2-3 turns left and 1/4 turn more from whatever you do to the left for the right carb.
Aren't the Predators suppose to shine in top speed or higher RPM's anyway? Maybe thats why you pass him by. [img]i/expressions/face-icon-small-shocked.gif[/img]
Aren't the Predators suppose to shine in top speed or higher RPM's anyway? Maybe thats why you pass him by. [img]i/expressions/face-icon-small-shocked.gif[/img]
#6
Raptor piping/jetting
Moving the needle would only effect the mid range and since that's where you cruise most of the time he was probably running rich there and sucking gas. The problem you describe sounds like he needs to go up on the mains 150/155 if he's running with the lid on and snorkle removed or flaps trimmed.
#7
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#10
Raptor piping/jetting
Ok, I have no idea what the alt. is here, eastern Wisconsin. He found out that the needles wern't even, one was third from the top, the other was 4th from top. Even now. How hard is it to re-jet? He heard that you had to drill something out? Any sugestions? What are the stock jet sizes and where should he start with the new jets? Sitting on the machine, from left to right, which carb has which? Thanks again all.