I have a 2005 yahama 650 vstar classic it just came out of the shop had fuel system clean and still stalls when down shifting to first gear any ideas what could be the problem also it's my first bike and I want to get away from it or least get a good ride

It was all cleaned out it died when I was down shifting to first gear pulling into my driveway other from that it worked great and it don't want to start again It was all cleaned out it died when I was down shifting to first gear pulling into my driveway other from that it worked great and it don't want to start again

Were the carb's balanced? Were the carb's balanced?

I'm not sure if it was done when I got home it stalled when I downshift to 1st gear and she wouldn't start after but 3 hours later started great I'm not sure if it was done when I got home it stalled when I downshift to 1st gear and she wouldn't start after but 3 hours later started great

The next time the engine stalls and won't restart check to see if you have spark you may have an ignition problem than not carburetor problem The next time the engine stalls and won't restart check to see if you have spark you may have an ignition problem than not carburetor problem

You think that could be it cause it started after sitting for a couple hours You think that could be it cause it started after sitting for a couple hours

If it is a loss of spark I would replace the crankshaft pickup coil also known as the crankshaft position sensor first It is the cheapest part If it is a loss of spark I would replace the crankshaft pickup coil also known as the crankshaft position sensor first It is the cheapest part

Cool I will try that next time it happens thanks so much will update you on this later Cool I will try that next time it happens thanks so much will update you on this later

you're very welcome I hope that my idea works and it fixes the problem. you're very welcome I hope that my idea works and it fixes the problem.

Well I tried my bike and it stalled again when I downshift to 1st gear and this time I had changed the plugs and I had one to try and to no avail no spark Well I tried my bike and it stalled again when I downshift to 1st gear and this time I had changed the plugs and I had one to try and to no avail no spark

I don't quite understand why you would change the spark plugs trying to cure no spark spark plugs have nothing to do with the spark the only thing that creates spark is the ignition pickup on the crankshaft and the ignition module I don't quite understand why you would change the spark plugs trying to cure no spark spark plugs have nothing to do with the spark the only thing that creates spark is the ignition pickup on the crankshaft and the ignition module