jgimar
XS650 Addict
First off, thanks to those that have been helping me. Now, my continuing saga. I have a '77 XS that I've been slapping back together. Stuck a Hugh's PMA on it with a Pamco ignition. It has 1 1/2 inch open pipes(with torque cones) and no air boxes, just pods.
Started out trying to pull off a 2 into 1 set-up but some of you wisely told me to forget it and come back down to earth. So, I have come up with a set of 76 BS38's, needed some cleaning but they were complete..
Got them looking good, followed some of the forum talk and asked some questions and here I am. For jetting, I have installed 145 main jets and dropped the needles all the way. needle and needle jets remained stock. the pilot jet's, they originally had 22.5's non bleed type in them(contrary to 45's as my manual specified). I bumped them up to 30's. okay, ready to go. Crank it up, sitting at dead still idle we got it to run pretty smooth and quiet but the minute ya bump the throttle it would back fire badly.
I'm thinking I haven' even got to the point of addressing main jet problems so I'm still looking at the pilots still being to small. Am I going down the right path? Can anybody guide me on how much larger I should go if this is my problem? Again, any help greatly appreciated.
Started out trying to pull off a 2 into 1 set-up but some of you wisely told me to forget it and come back down to earth. So, I have come up with a set of 76 BS38's, needed some cleaning but they were complete..
Got them looking good, followed some of the forum talk and asked some questions and here I am. For jetting, I have installed 145 main jets and dropped the needles all the way. needle and needle jets remained stock. the pilot jet's, they originally had 22.5's non bleed type in them(contrary to 45's as my manual specified). I bumped them up to 30's. okay, ready to go. Crank it up, sitting at dead still idle we got it to run pretty smooth and quiet but the minute ya bump the throttle it would back fire badly.
I'm thinking I haven' even got to the point of addressing main jet problems so I'm still looking at the pilots still being to small. Am I going down the right path? Can anybody guide me on how much larger I should go if this is my problem? Again, any help greatly appreciated.