Visegrippe
lurker extraordinaire...
Got the bike running again, gas went bad and clogged the carbs, in a matter of 3 weeks, never saw that before.
anyways, figured out the kick-back problem, the advance gets stuck advanced, i'll have to try tighten the springs, also seems to be advancing at about 2200rpm. also bent another kickstarter... this thing really kicks back...
left side's popping pretty regularly in the exhaust, seems to be a bit rich, plug's more of a black than a dark brown. right side is a nice brown colour, maybe a bit dark, only problem is that it's boiling the high heat engine paint off the cylinder head. i know it runs hotter than the left, but this seems a bit extreme.
(this is just idling, no plates = no test riding)
the idle surges quite a bit, or at least regularly, it falls back down quickly when you blip the throttle, so i'm a little leery that it's too lean, also given the darkness of the plugs.
it will only idle at a fairly quick tick-over, about 1250 or so, bring it down it will run for a bit then quit.
the popping on the left side i'm pretty sure is an exhaust leak, from the sound, and the fact that it had been outside since the early 90's.
bike is a 79 special (canadian), carbs are running stock jets, stock exhaust (i think, the mufflers look a little unusual), and bored to 780cc. richening the pilots smoothed the idle, but didn't stop the surging. i still need to sync the carbs beyond eye-balling the butterflies, but it has enough trouble idling slowly on both cylinders that i'm not looking forward to trying the dead-cylinder method.
i'm guessing i'll start with the advance springs, any other suggestions?
anyways, figured out the kick-back problem, the advance gets stuck advanced, i'll have to try tighten the springs, also seems to be advancing at about 2200rpm. also bent another kickstarter... this thing really kicks back...
left side's popping pretty regularly in the exhaust, seems to be a bit rich, plug's more of a black than a dark brown. right side is a nice brown colour, maybe a bit dark, only problem is that it's boiling the high heat engine paint off the cylinder head. i know it runs hotter than the left, but this seems a bit extreme.
(this is just idling, no plates = no test riding)
the idle surges quite a bit, or at least regularly, it falls back down quickly when you blip the throttle, so i'm a little leery that it's too lean, also given the darkness of the plugs.
it will only idle at a fairly quick tick-over, about 1250 or so, bring it down it will run for a bit then quit.
the popping on the left side i'm pretty sure is an exhaust leak, from the sound, and the fact that it had been outside since the early 90's.
bike is a 79 special (canadian), carbs are running stock jets, stock exhaust (i think, the mufflers look a little unusual), and bored to 780cc. richening the pilots smoothed the idle, but didn't stop the surging. i still need to sync the carbs beyond eye-balling the butterflies, but it has enough trouble idling slowly on both cylinders that i'm not looking forward to trying the dead-cylinder method.
i'm guessing i'll start with the advance springs, any other suggestions?
