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Author Topic: points or condenser  (Read 277 times)

Offline jomama

  • Posts: 10
points or condenser
« on: Jun 15, 2012, 21:43:02 »
OK Lads here is a problem that I cant seem to solve so any insight would be greatly appreciated. On my cb360, at idle the R cylinder pops through the carb and pops out the muffler. When the right plug is disconnected it quits. Runs fine on the left one alone. The spark from the grounded R plug is good at anything above an idle but poor to intermiten at idle. I checked the points and the R setdo not arc at all. Whats up here?n is constantly arcing while the L which is good and strong does not arc at all. Could I have a condenser going south on me? The coils are within specs . I mean the R points arc like crazy while the L ones dont arc at all and that cylinder runs perfect. Iterestingly enough it starts and runs pretty good at speed but idles like sh t.

Offline Sonreir

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Re: points or condenser
« Reply #1 on: Jun 15, 2012, 21:47:22 »
Possible bad connection in the plug caps.  Popping in the carbs and muffler is a classic lean symptom though (and almost definitely not related to your spark issue).  I think it may be time to clean the carbs.
1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1982 Honda CB750C - Project Zoidberg
1963 Yamaha YDS3
1973 Suzuki T500
1982 Yamaha Seca XJ750R

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Re: points or condenser
« Reply #2 on: Jun 16, 2012, 00:25:40 »
Sonreir is right...first thought that came to mind with back firing is a lean condition.  Run it for a few minutes and check your plug burn to verify.  Cleaning the carbs isn't a bad idea...Also check for any air leaks in/around the carbs.  Use carb cleaner or starter fluid.  When it gets sucked in the RPM will change (lower for carb cleaner/higher for starter fluid).  That'll help you find if any leaks.

Offline jomama

  • Posts: 10
Re: points or condenser
« Reply #3 on: Jun 17, 2012, 22:26:28 »
Well lads the starting fluid was the give away. Immediate rise in RPMs when sprayed on R intake. After I replace (locate first) the intakes I will persue the weird spark issue.

Offline Yeahbro

  • Posts: 11
Re: points or condenser
« Reply #4 on: Jun 25, 2012, 03:18:02 »
Sounds Like a bad condensor to me. A lean condition will not cause the points to arc.