Yamaha Motorcycle Silverado

Posted in Uncategorized by admin on May 8, 2007

Yamaha Motorcycle Silverado

Motorcycle dies at idle?

I have a 2006 Yamaha Roadstar Midnight Silverado. Just yesterday I pulled over, left the bike in neutral while I did a quick something and heard the bike slowly lower its idle to just barely on when I went over and turned it off myself. I had to try harder than usual to turn it back on, but it did start again. It runs fine when if I constantly give it throttle, like at a stop sign or light and runs fine when riding, but as soon as I let go of the throttle it slowly goes down to nothing before shutting off.

Anyone have any ideas on what it could be? I’m thinking it needs to have the carbs cleaned but not entirely sure.

Thanks

Yeah sounds like something wrong with the carb. Its probbly blocked or the bleed screws may have moved a little.

When you leave your bike in neutral the frequency of the vibrations becomes lower, gettin closer to the natural frequency of the inner workings of your carb (ever notice how the panels in a bus vibrate more when the engine is idling?)

This could cause the screws to move over time just enough to not let enough air through the carb. If you know what you are doing you could probably fix it yourself, if not, off to the mechanics with you

Removal and Cleaning Yamaha 650 v-star carburator 4