nb1914
XS650 Addict
Hi All,
I have been battling with a poor running right cylinder for quite sometime and now I'm after a few ideas, below is where i am at present:-
After some analysis i replaced the points with a Newtronics electronic ignition.
found that there was way too much oil so emptied and refilled to minimum level, previous to that oil was appearing out the exhaust.
So where am i , bike starts first/second kick (on the left cylinder) the right cylinder takes about 15seconds to run smooth with a slight backfire. After a minute or so it runs quite well on both cylinders ( white smoke has gone) right exhaust is pumping nice hot gas as the is the left ( every now and then i see some small embers out the right exhaust very small amount ) bike tick over nicely and accelerate very well. Still a bit of misfire on right side.
I have advanced and retarded the timing to try to eliminate the backfire and slow start on the right side.
i have swapped the coils and plug wires from left to right to see if i have a bad coil but the backfire stays on the right cylinder.
I am running off the battery only i.e. no charging circuit but i would assume a low batt would affect both pots.
I have let the bike run for awhile to burn off any oil in the right pot but at present i can't see any plug fouling but i will try again later.
i have cleaned out the carbs, but had to repair the right darn diaphragm as 2 holes were present but as i understand a backfire is usually unburnt fuel in the exhaust suggesting the carb is supplying fuel.
Any ideas welcomed, as i say once the right pot start running its almost spot on and accelerates very well.
I have been battling with a poor running right cylinder for quite sometime and now I'm after a few ideas, below is where i am at present:-
After some analysis i replaced the points with a Newtronics electronic ignition.
found that there was way too much oil so emptied and refilled to minimum level, previous to that oil was appearing out the exhaust.
So where am i , bike starts first/second kick (on the left cylinder) the right cylinder takes about 15seconds to run smooth with a slight backfire. After a minute or so it runs quite well on both cylinders ( white smoke has gone) right exhaust is pumping nice hot gas as the is the left ( every now and then i see some small embers out the right exhaust very small amount ) bike tick over nicely and accelerate very well. Still a bit of misfire on right side.
I have advanced and retarded the timing to try to eliminate the backfire and slow start on the right side.
i have swapped the coils and plug wires from left to right to see if i have a bad coil but the backfire stays on the right cylinder.
I am running off the battery only i.e. no charging circuit but i would assume a low batt would affect both pots.
I have let the bike run for awhile to burn off any oil in the right pot but at present i can't see any plug fouling but i will try again later.
i have cleaned out the carbs, but had to repair the right darn diaphragm as 2 holes were present but as i understand a backfire is usually unburnt fuel in the exhaust suggesting the carb is supplying fuel.
Any ideas welcomed, as i say once the right pot start running its almost spot on and accelerates very well.