Log in

View Full Version : cold weather jetting



niterider40
01-10-2010, 09:29 AM
I'm switching to a 157.5 main jet because of cold weather starting problems. Does this sound like a good idea? My 03 predator is stock except for the exhaust. Will I have to pull the welsh plug and adjust the pilot screw also?

marshviewripper
01-11-2010, 11:56 AM
You may want to play with the pilot. The main has no affect on starting. Try turning the idle up as well. If you get it worked out it would prolly still be a good idea to put in a bigger main. What temps do you have? If your always between 0-20 deg. you may want to go t a 160 even.