Fuel Delivery?

[Adler]

You can open the petcock you have and check it out.
It is worthwhile doing especially if you have decided to buy a new one.

Four screws on the backside will reveal the diaphraghm.
There is some screws so be careful.

It could be as simple as a light cleaning.
Prett easy thing to at least check and clean.
Yhing may just be gummed up after all.

I think you meant "springs", but absolutely, I'm a big fan of trying to fix it before replacing it.

[JEEPRUSTY]

I think you meant "springs", but absolutely, I'm a big fan of trying to fix it before replacing it.

yah I meant springs.

There is a plastic cone that turns in the petcock body.
You can remove it but under no circum,stances remove the spring steel doo dad underneath it.
You will cry in despair of getting it reinserted and ou can twist it out of shape thus ruining the whoe works.

[c0okiez]

hah alright, ill avoid that little guy. what about new wires for the plugs?

[JEEPRUSTY]

Oh and while I am thinking about this.
Do you guys know that a petcocks prime position flows less than it on position?

Its true the hole in the petcock for the Prime position is signifigantly smaller than the ON.

I assume at high RPM running this would affect fuel delivey by being a possible source of starvation.

[BassCliff]

Hi,

As I recall, I ordered my NGK plug caps from Z1Enterprises.com along with a bunch of other stuff. But you should be able to find them at a local auto parts store.

http://www.z1enterprises.com/SearchResult.aspx?All=True&KeyWords=ngk%20spark%20plug%20cap

Thank you for your indulgence,

BassCliff

[mike_of_bbg]

Yes the orifice for prime is smaller. However, I was able to dump two gallons of fuel on prime in under 5 minutes. Doubtful that your bike uses that much gas at any speed, regardless of displacement.

Z1 enterprises has a couple of OEM-style vacuum petcocks they sell for less than that eBay one ($55 and $48 I think). Interestingly, they don't list your bike in the compatibility. Yet the eBay sellers' description covers several other bikes that ARE compatible with the Z1 petcocks. Wouldn't hurt to call them up and ask.

[c0okiez]

got the bike running and revving. simple rebuild of the petcock did the trick (new one still coming).

However, cylinder one doesn't seem to be firing, the exhaust pipe is barely warm. and it doesn't idle without my hand on the gas a tiny bit.