20 Most Recent 2006 Yamaha Road Star Midnight Silverado - Page 3 Questions & Answers

Strip carbs and clean

Yamaha... | Answered on Aug 23, 2020

I am guessing you checked that with a voltmeter?

A voltmeter needs only microamps but such a tiny amount of current hardly qualifies as power. A backfeed because of leakage from something will register a voltage, especially with a digital meter but I wager there wouldn't be enough current to light a bulb - which is why I mostly use a testlamp for such checks.

Most modern ignition/engine management systems use more than one supply and internal leakage between them might be normal or might be a fault. Reference to a wiring diagram might help. Certainly if both fuse terminals have real power - that wouldn't be normal.

Yamaha... | Answered on Aug 20, 2020

Carb cleaner fuel additive can be used but only after you have stopped the carb flooding. Gently tapping the carb might do the trick otherwise it will have to be a strip-down.

Carb cleaner is good for removing varnish and other fuel residue but it won't remove insoluble dirt or compensate for wear - carb flooding might be caused by a sticking float valve but most likely it is either wear or dirt.

Yamaha... | Answered on Jul 28, 2020

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