Gas tank cap vent

[scapco at ecentral.com]

A correction to Paul's comments.  The ZRX uses the same 
petcock as the GPZ.    You can fit the petcock from a ZZR-
1200 and it will work although I believe the reserve might 
be a little bigger.

Charles S.

> Larry:
> 
>Vacuum-operated petcocks have caused headaches like these 
>when they go bad. I'd check for leaks in the vacuum hose 
>to the petcock.  Also, some folks have swapped out the 
>stock GPz petcock for a ZRX unit that doesn't have the 
>vacuum actuation. And Murph sells a conversion kit to 
>get rid of the vacuum fuel valve feature.
> 
> Paul in Ohio 
>