Beartracker 250 won't run w/o choke
#1
#2
#3
while not familiar with your specific machine, have you sprayed the boot area with carb cleaner and checked for vacuum leaks? does it bog down when hitting the throttle? if so, i'd think you're on the right track with the main jet still being dirty. maybe even adjust the rich/lean screw and make sure the idle screw is set also.
#4
#5
If it won't idle without the choke, your pilot jet is plugged, or the passage to the carb throat from the pilot jet is plugged. You will need to remove the pilot jet (small jet in front of the main jet), and push a wire through all the holes (some have one hole, some have side holes as well) I use a single strand from a large metal brush, just the right size and strength to go into the jet. While the jet is out, put the carb spray straw into the jet hole and spray it out, you should see some liquid come out in the carb body port. Once that is all cleaned out, it should idle. dying when you give it gas is typical of not having an idle circuit open, sucks in too much air when you open the throttle, and dies. as far as the noise, could be loose valves, probably needs the clearance set on a quad that old.
#6
#7
A 20 dollar Clymer manual will save you lots of trips to the dealer, setting the valves is not hard, as long as you know how to get it on TDC (top dead center) by removing the inspection plug and the side plug and using a socket to manually turn the motor over to line up the "T" mark on the flywheel. Do this without the sparkplug in, turns much easier that way, you will know when you are at TDC, both rocker arms will be relaxed and ready for adjustment. For Yammys, usually around .004 for intake and .006 for exhaust.
Thread
Thread Starter
Forum
Replies
Last Post
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)