The blind plug is a rubber plug that sits on top of the crankcase. It pops out when there's too much pressure. The bike is air cooled. When I get it back from the dealership it lasts about 2 weeks then the plug pops again.
It only happens on start up. Never when riding. Generally about 10 seconds after startup but the last time was after I let it idle for about 4 minutes waiting for the smoke to clear. There was no discernible difference in smoke density when idling on stand or upright.
Sorry but I'm not a technical guy. Can you explain what a breather system is and I'll check if its blocked. When I google it looks like an air filter with a hose. I'll check that after work.
Thanks for the feed back.
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