fenbrancis
XS650 Addict
My 1982 XS650 Heritage special runs very well. It is a little weak on the bottom end when its cold but other than that it runs well (smooths right out after bike warms up). However, when I let off the gas and let the engine breaking do its job, the right cylinder (right when sitting on the bike) has some decel popping. This only occurs whiles actually riding. When I am sitting at idle and rev, as the rpms come back down there is no pop. Everything I have seen looks like either an exhaust leak or some carb adjustment issue.
I have stock carbs, stock air filters, new exhaust gaskets, and stock exhaust. I am running a 145 pilot but the other jets are stock. I went up on pilot as the bike was running very lean at idle. I am running the gonzo ignition, I read that some iginition timing retardation can cause decel pop, however I figured it would cause popping on both cylinders not just one.
I am at 2.5 turns out on the fuel mixture screw. The plug for the popping cylinder was a good color maybe a tad lean, so I went to 3 turns on the fuel screw and it calmed down but still a good amount of popping.
There is no decel pop on the left cylinder. Any and all help is greatly appreciated.
I have stock carbs, stock air filters, new exhaust gaskets, and stock exhaust. I am running a 145 pilot but the other jets are stock. I went up on pilot as the bike was running very lean at idle. I am running the gonzo ignition, I read that some iginition timing retardation can cause decel pop, however I figured it would cause popping on both cylinders not just one.
I am at 2.5 turns out on the fuel mixture screw. The plug for the popping cylinder was a good color maybe a tad lean, so I went to 3 turns on the fuel screw and it calmed down but still a good amount of popping.
There is no decel pop on the left cylinder. Any and all help is greatly appreciated.
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