Petcock issue

[miikeflynn]

I have a 72 CB350 with a leaking petcock. The petcock on my bike is just like this example from dime city:
http://www.dimecitycycles.com/vintage-cafe-racer-bobber-brat-chopper-custom-motorcycle-fuel-tank-parts-honda-cb450-fuel-petcock-16950-292-000.html

It seems to be leaking right out of the bottom of the plate that is stamped with "on", "off" etc.

I'm assuming that this part will solve my problem:
http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-carburetor-petcock-tank-parts-honda-cb-cl-petcock-gasket-16953-283-000.html

Is that pretty much it or will I need anything additional?

 

[Bert Jan]

Clean it and check for leaks again. If so, its a do all or dont do. Parts wear over time, and changing one part is like putting new sprockets on and using the old chain.

Here you go:
http://www.cmsnl.com/honda-cb350-super-sport-350-k0-usa_model430/partslist/F++09.html#results

 

[miikeflynn]

Well the petcock on my bike has two brass nipples for the fuel lines to connect to (one for each carb) the oem one is $50 from DCC. They have some other more economical options that only have one fuel line nipple. Can I just use one of those and then add a little "y" connector to branch off to each carb?

 

[Bert Jan]

Well the petcock on my bike has two brass nipples for the fuel lines to connect to (one for each carb) the oem one is $50 from DCC. They have some other more economical options that only have one fuel line nipple. Can I just use one of those and then add a little "y" connector to branch off to each carb?

jup, no biggie.

but be sure it fits your tank. there are a lot of different mountings..
if your fueltap does leak on only one position, cheapest would be to get in-line fueltaps and set the OEM tap in the position it does not leak but does flow.

 

[Bobby Joe]

Well the petcock on my bike has two brass nipples for the fuel lines to connect to (one for each carb) the oem one is $50 from DCC. They have some other more economical options that only have one fuel line nipple. Can I just use one of those and then add a little "y" connector to branch off to each carb?

This is how my CB500 is set up. You don't have a vacuum PC some I would assume you can branch it out. But do as suggested earlier and clean it out first. Careful though, the rubber inside may need to come out and cleaned in a more gentle manner than the rest of it...plus you will see how worn it is.

 

[Bobby Joe]

What did you come up with on this issue? My petcock is leaking when it is in the "stop" position. It is an OEM replacement, and mine mounts to a plate with two bolts coming from behind the bowl, and not a single thread like on the top of yours. And there is no room for an inline fuel shut off valve as suggested earlier.