Zombis
XS650 Enthusiast
So ive been getting like 33 miles to the gallon. 1980 xs650g bs34s K&N pods stock exhaust was running:
canadian needles 2nd notch from the top
135 mains
stock air jet
45 pilot
now running
135 main
42.5 pilot
canadian needles 3rd notch (middle)
stock air jet
Left the bike sitting for 4 hours wouldnt start but would backfire and light up in the exhaust pipe. come to find had a leaky float seat o ring. replaced it. compression was kind of low. 110 psi. on right 140 on left. cleaned carbs. ran bike for like 5 minutes tried to adjust sync but right cylinder wasn't firing. pulled plugs both gas soaked. compression test 135 on left 65 on right....
Start shitting bricks.
continued checking everything. change oil, Clean carbs again, timing chain tension: good. Valve clearances: good: compression low as hell.
added oil to both cylinders compression went up to 150 on each again. worry rapidly fading.
Finally noticed that the spark was kinda reddish on the one cylinder kinda blue on another. I was doing plug chops a month ago on my lunch break and left one of the plug wires off the spark plug dumb move.
Im thinking this could be a possibility to the cylinder wash and the low mileage.
i have the green dual output coil. Im going to check the resistance on the coil tomorrw and order up a new one. is there anyhting else i should check other than maybe the needle height?
canadian needles 2nd notch from the top
135 mains
stock air jet
45 pilot
now running
135 main
42.5 pilot
canadian needles 3rd notch (middle)
stock air jet
Left the bike sitting for 4 hours wouldnt start but would backfire and light up in the exhaust pipe. come to find had a leaky float seat o ring. replaced it. compression was kind of low. 110 psi. on right 140 on left. cleaned carbs. ran bike for like 5 minutes tried to adjust sync but right cylinder wasn't firing. pulled plugs both gas soaked. compression test 135 on left 65 on right....
Start shitting bricks.
continued checking everything. change oil, Clean carbs again, timing chain tension: good. Valve clearances: good: compression low as hell.
added oil to both cylinders compression went up to 150 on each again. worry rapidly fading.
Finally noticed that the spark was kinda reddish on the one cylinder kinda blue on another. I was doing plug chops a month ago on my lunch break and left one of the plug wires off the spark plug dumb move.
Im thinking this could be a possibility to the cylinder wash and the low mileage.
i have the green dual output coil. Im going to check the resistance on the coil tomorrw and order up a new one. is there anyhting else i should check other than maybe the needle height?