JasonP
03-30-2007, 09:08 PM
Here we go.
Checked for air leaks. Good to go and even used some Av gasket maker between the manifolds. Here's my problem.
I am adjusting my idle circuit. So on the pilot jet, screw and air jet. I rev the engine up to about 1800 rpm or so and turn the pilot screw all the way in. Then slow back it out tell I get maxium rpms until the engine starts to miss through the exhaust. I come with about 2 1/2 turns out on the pilot screw. So good right.. well now if you rev it up and let off the throttle.. she back fires and cracks through the exhaust like it's lean. So I adjust the screw out half a turn it gets a little better but not perfect... I try more 3 1/2 turns out still no better. ****!! Now I have to change an air jet or pilot jet. . . but now isn't my low speed setting is off. I wonder if I have an exhaust leak? Also it will not start on the choke. You have to just pump the throttle a couple of times and then the engine will fire. Also when it warms up it seems like it doesn't want to start at all. Help I'm sick of this.
Also the accelerator pump is lean. And there is no way to adjust the actual jet or nozzle. You can only adjust the duration of it. Both stoping and starting. If you give the rod a big push when you wack the throttle then the bike just snaps and the engine revs awesome. No matter how soon I start it, the engine will booog for a second then take off. So I guess I'll have to drill the nozzle out a little at a time.
So this carb has been a real pain in my ***. Obvously I'm going to get ripped on because this is why you all went to the brock carbs. I can see why now. This carb does perform when you get it tuned right, it's just a big ***** trying. I think tomorrow I'm going to bring it to the shop and soak it in carb cleaner and the hot water wash it and see if that helps.
Any help would be great here would be great!?
Checked for air leaks. Good to go and even used some Av gasket maker between the manifolds. Here's my problem.
I am adjusting my idle circuit. So on the pilot jet, screw and air jet. I rev the engine up to about 1800 rpm or so and turn the pilot screw all the way in. Then slow back it out tell I get maxium rpms until the engine starts to miss through the exhaust. I come with about 2 1/2 turns out on the pilot screw. So good right.. well now if you rev it up and let off the throttle.. she back fires and cracks through the exhaust like it's lean. So I adjust the screw out half a turn it gets a little better but not perfect... I try more 3 1/2 turns out still no better. ****!! Now I have to change an air jet or pilot jet. . . but now isn't my low speed setting is off. I wonder if I have an exhaust leak? Also it will not start on the choke. You have to just pump the throttle a couple of times and then the engine will fire. Also when it warms up it seems like it doesn't want to start at all. Help I'm sick of this.
Also the accelerator pump is lean. And there is no way to adjust the actual jet or nozzle. You can only adjust the duration of it. Both stoping and starting. If you give the rod a big push when you wack the throttle then the bike just snaps and the engine revs awesome. No matter how soon I start it, the engine will booog for a second then take off. So I guess I'll have to drill the nozzle out a little at a time.
So this carb has been a real pain in my ***. Obvously I'm going to get ripped on because this is why you all went to the brock carbs. I can see why now. This carb does perform when you get it tuned right, it's just a big ***** trying. I think tomorrow I'm going to bring it to the shop and soak it in carb cleaner and the hot water wash it and see if that helps.
Any help would be great here would be great!?