Help diagnose a sputtering bike?

[Ebuddy]

Well… It depends upon how “untechnical” you are. ;-)

Rather than recreating the wheel, here’s a site that has some good information:

http://www.mopedarmy.com/wiki/Vacuum_leak

I’d just stick with Method 1 to start.

After that, I’d replace all of the vacuum and fuel lines anyhow. This is a cheap, easy task that should probably be done on a ’06 if it’s never been done before.

Failing that, I’d start looking at the petcock/fuel pump, auto enricher (if equipped) and the carburetor (in that order).

Best to try one at a time so as to not be overwhelmed.

If after all that there’s still an issue, perhaps the valves need to be adjusted.

[UltraLife]

Super helpful, thanks! I am going to try this out with a friend soon!

Originally Posted by Ebuddy

Well… It depends upon how “untechnical” you are. ;-)

Rather than recreating the wheel, here’s a site that has some good information:

http://www.mopedarmy.com/wiki/Vacuum_leak

I’d just stick with Method 1 to start.

After that, I’d replace all of the vacuum and fuel lines anyhow. This is a cheap, easy task that should probably be done on a ’06 if it’s never been done before.

Failing that, I’d start looking at the petcock/fuel pump, auto enricher (if equipped) and the carburetor (in that order).

Best to try one at a time so as to not be overwhelmed.

If after all that there’s still an issue, perhaps the valves need to be adjusted.