nitroxwzrd
XS650 Member
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I'm having issues with the left side cylinder missing and stumbling from start to about 3500rpms and would like some guidance on where to look next. I have read and reread the tech section and searched for hours but have not been able to come up with anything that works everything I find seems to be talking about both sides having issues or one side just totally not working. I haven't been able to find anything on a constant issue with only one side.
Situation:
About 2 weeks ago I totally lost the left cylinder when heading home. Before then I had no issues to speak of. Bike ran relatively fine but I have been slowly tweaking and fixing things on it as I could. Since then I replaced both coils, wires, and plugs. When I put everything back together and fired the bike up the right side ran fine but the left side would backfire and misfire no matter what I did with the throttle. I have since cleared the carbs, switched the coils and wires from one side to the other, and put in new plugs again. None of that helped.
Bike:
1977 XS with twin Dellorto PHF36 and pod filters. Before the cylinder issue I was running 145 mains and what looked like bored out 65 idle jets. In the process of cleaning the carbs I went to 140 mains and new 65 idle jets. In this whole issue I have chanded the jets back and forth but that doesn't seem to have any effect. Bike also has drag pipes with and oldschool thumbscrew for baffles.
Any idea on where to look next would be Awsome.
Situation:
About 2 weeks ago I totally lost the left cylinder when heading home. Before then I had no issues to speak of. Bike ran relatively fine but I have been slowly tweaking and fixing things on it as I could. Since then I replaced both coils, wires, and plugs. When I put everything back together and fired the bike up the right side ran fine but the left side would backfire and misfire no matter what I did with the throttle. I have since cleared the carbs, switched the coils and wires from one side to the other, and put in new plugs again. None of that helped.
Bike:
1977 XS with twin Dellorto PHF36 and pod filters. Before the cylinder issue I was running 145 mains and what looked like bored out 65 idle jets. In the process of cleaning the carbs I went to 140 mains and new 65 idle jets. In this whole issue I have chanded the jets back and forth but that doesn't seem to have any effect. Bike also has drag pipes with and oldschool thumbscrew for baffles.
Any idea on where to look next would be Awsome.