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CB500/550 / Re: Plugs fouling at idle
« Last post by McCabe-Thiele (Ted) on Today at 11:13:30 PM »Is it possible that you smell unburnt petrol as the oil has fouled up the plugs first - cause oil deposits on the plugs leading to unburnt petrol afterwards. Often you can see no blue smoke in oil burners.
Where rings have been replaced rather than a rebore with some glaze breaking I suspect some running in might be needed before worring about plug colours.
As an aside my 400 that was rebored by Graham has only covered some 230 odd miles - unless it starts misfiring I will not check the plug colours until it has covered about 600 miles. My idle speed is good and even - to date only bench synched the carbs as it's now running so well after my initial mistake on the plug connections when it was a two cylinder bike for a while!
Where rings have been replaced rather than a rebore with some glaze breaking I suspect some running in might be needed before worring about plug colours.
As an aside my 400 that was rebored by Graham has only covered some 230 odd miles - unless it starts misfiring I will not check the plug colours until it has covered about 600 miles. My idle speed is good and even - to date only bench synched the carbs as it's now running so well after my initial mistake on the plug connections when it was a two cylinder bike for a while!
