mason s
XS650 Enthusiast
getting desperate & really need help. my bike is driving me up the walls. I've been wrenching on it for a couple months now. upgraded to a hughs pma after my rotor went tits up. ever since I've had a tough time. left side coil went out not long after. which I replaced, & am now just having such a hard time tuning things. carbs have been off five times already, & are clean as all hell. my setup is a 1976, points, bs38s with unis & cocktail shakers.
my problem is this.. the left side of my bike seems impossible to tune. I took it on a ride yesterday & it was running decent, but bogging off idle until I gave it enough gas to pick up. so I tried going up 1 on the pilots, & it seemed okay until I started getting white smoke out of the left exhaust. something I've never seen on my bike. pulled the plugs, right side looks perfect, left is dark & wet (oil fouled?) put a new plug in & it's popping on the left & wouldn't idle well. why is my right side so resilient but the left is so damn stubborn? no matter what jetting I do the left side seems to struggle, but it's getting great spark.. sprayed carb cleaner on the intakes to see if I have an air leak but I can't really tell or see anything unusual. though I've never done that sort of test...
any help would be so greatly appreciated. thanks!
my problem is this.. the left side of my bike seems impossible to tune. I took it on a ride yesterday & it was running decent, but bogging off idle until I gave it enough gas to pick up. so I tried going up 1 on the pilots, & it seemed okay until I started getting white smoke out of the left exhaust. something I've never seen on my bike. pulled the plugs, right side looks perfect, left is dark & wet (oil fouled?) put a new plug in & it's popping on the left & wouldn't idle well. why is my right side so resilient but the left is so damn stubborn? no matter what jetting I do the left side seems to struggle, but it's getting great spark.. sprayed carb cleaner on the intakes to see if I have an air leak but I can't really tell or see anything unusual. though I've never done that sort of test...
any help would be so greatly appreciated. thanks!