I just sorted out the vacuum leak on my 2002 T-Bird with Keihen carbs. Bike now fires rights up, idles smoothly with good throttle response. Quite satisfied with myself, I set about the synch the carbs before Miller time. That’s when my new troubles began.
I’ve synched many carbs, and my usual experience is a few minutes, a few tweaks and all the needles are dead nuts. Not this time. The left carb synched up easily, but I’m having no luck getting the right carb to synch with the middle. It seems when I turn the screw to get the needles close, the idle climbs above 1,000 RPM. When I then back off the main idle adjuster wheel to bring the idle back down the 1,000 RPM, the synch is way off again. It’s very much like over-steering a boat…too much to port, then over-correct to starboard…pretty soon the entire crew is heaving over the rails. You get the picture. Now, I think I have the idle completely out of whack between the right carb screw and the main idle adjuster wheel.
Can someone help steer me back to on course? Should I set the right hand carb screw and idle adjuster at some happy medium to start? Should I turn the right hand carb screw all the way in to start? All the way out? Something in the middle?
Help!
Thanks-
Scott
I’ve synched many carbs, and my usual experience is a few minutes, a few tweaks and all the needles are dead nuts. Not this time. The left carb synched up easily, but I’m having no luck getting the right carb to synch with the middle. It seems when I turn the screw to get the needles close, the idle climbs above 1,000 RPM. When I then back off the main idle adjuster wheel to bring the idle back down the 1,000 RPM, the synch is way off again. It’s very much like over-steering a boat…too much to port, then over-correct to starboard…pretty soon the entire crew is heaving over the rails. You get the picture. Now, I think I have the idle completely out of whack between the right carb screw and the main idle adjuster wheel.
Can someone help steer me back to on course? Should I set the right hand carb screw and idle adjuster at some happy medium to start? Should I turn the right hand carb screw all the way in to start? All the way out? Something in the middle?
Help!
Thanks-
Scott