80 Yamaha XS 850 discussion forum:

RE: leaky petcocks

RE: leaky petcocks

ebunny said 2005-09-04 02:28

I also had less then expected results when I rebuilt mine.

If set right they should flow free on PRI (prime), but ON should only flow with engine vacuum.

I just looked at the Yamaha parts diagram and remembered that it does not replace the vacuum diaphram and spring on the back side.

If your diaphram holds air then replace the spring with a stronger one. I just streched mine longer and it held fuel back afterward.

Cheers,
Erik.
ASE Certified Master Technician, Electronics/Communications Tech. II

<<Previous Answer Discussion overview Report spam Next>>

Enter a comment or answer to this message

You can post your question, answer or comment as a guest. Or enter your e-mail to join the forum and get notifcations of new messages.

More 1980 Yamaha XS 850 information

Our discussion forums are intended for short messages. We also welcome more extensive motorcycle reviews.

Bikez also recommends that you check out the technical data and the riders' rating for the 80 Yamaha XS 850. You can also rate it yourself. Use our efficient motorcycle classifieds to sell or buy this bike. Your motorbike gets a high quality presentation. Ads are free.

Title
Signature
Optional e-mail
Enter your e-mail to join the forum and get notification of answers and new messages. You can unsubscribe with a single click. Bikez does not display, sell or misuse e-mail addresses.
Message text
Describe technical issues in detail to get quality answers. You can offer or request second-hand parts and equipment as a privat person. Bikez reserves the right to remove any improper or commercial content.
Accept that we store and display the message.

About Bikez.com.	Contact Bikez.com	Motorcycle catalogue
Our privacy policy	Do not sell my data	Motorcycle classifieds