1978 GS1000E Fuel Petcock - Conversion?

[sedelen]

Here's the petcock I bought thinking it would fit my GS 1000 C
Is this the one from a GS 750?
Apparently not from the pictures I've seen.
It sure does interfere with the side of the tank!
In any case this type of petcock is incompatible with the later GS 1000's fitted with BS carbs and original air box...

I haven't seen one of those before, that filter bowl is something I haven't seen on GS petcocks. Last time I saw one that had a filter bowl on it was my '72 CB450 Honda. I actually liked them, instead of collecting crap in the tank, it just settled in the bowl and you took it off and dumped it. Couldn't have been any easier.
I don't think I'd waste my time on it if it's going to damage your tank just to mount it.

[rustybronco]

Here's the petcock I bought thinking it would fit my GS 1000 C
Is this the one from a GS 750?
Apparently not from the pictures I've seen.

The numbers stamped on the side of the housing, should help with it's identification.

[steveb922]

John Kat's fuel tap looks like one of the earlier GT model taps.

[chuck hahn]

Definitely NOT a gs series petcock!!!

[salty_monk]

You have to be careful that it doesn't clash with the top of the Carburettors. The VM & CV petcocks are a different shape due to that I believe....

[Big T]

You have to be careful that it doesn't clash with the top of the Carburettors. The VM & CV petcocks are a different shape due to that I believe....

Which is how the 1980 leverless petcock was born

[FLHGSRay]

Not trying to hijack this thread, but this is the perfect time to try to sort out the petcock issue on my '79 1000e. Mine works well, but is starting to leak a little. When I was bringing this thing back from the dead, there were some questions about what my tank/petcock combo was. That discussion starts at post #60 here:

http://www.thegsresources.com/_forum/showthread.php?t=176796&page=2

The original owner told me the original tank was replaced. He didn't mention the petcock, so I assume it is original. Something is not right though, because the lever rubs on the airbox in the ON position, and the lines are an SOB to fit to the petcock. Pic is the bike as it sits now. Any ideas? I suppose I should just pull the tank and remove petcock so I can get a good look at it.

[tkent02]

Is your gas tank sitting too low? Missing the rectangular spacer in the back?

[chuck hahn]

Good point on the rear tank cushion....

[FLHGSRay]

I'll check, of course, but I'm pretty competent on this stuff. I probably would have noticed that. Probably. Tank doesn't rattle, or seem loose. Fits good with the seat.

[Big T]

I'll check, of course, but I'm pretty competent on this stuff. I probably would have noticed that. Probably. Tank doesn't rattle, or seem loose. Fits good with the seat.

Ray

Your leaks are probably from the 2 seals getting old and hard

One is an flat O ring that goes around the lever. The other one is the disc behind the lever. Replace those and you're good to go

And yes, I'm betting the guys are right and you're missing the rear cushion. It sits across the frame right above where the tank bolt goes in

[FLHGSRay]

So, we're talking about #11 here? I'd have to look, of course. Haven't had the tank off since I finished the bike. I hope it's that simple.

http://www.boulevardsuzuki.com/fiche_section_detail.asp?section=95435&category=Motorcycles&make=SUZUKI&year=1978&fveh=2146

[FLHGSRay]

And we're talking #2 & 3 for the petcock?

http://www.boulevardsuzuki.com/fiche_section_detail.asp?section=95436&category=Motorcycles&make=SUZUKI&year=1978&fveh=2146

[chuck hahn]

Yes on the 11...I have one you can have if you need it. Just PM me a mailing addy. Yes on 2 and 3 also.

[FLHGSRay]

Thanks for the offer. I think if I have to order the petcock stuff, I'll just get that too, if it's available. I need to first make sure that's the problem. I'll check back soon.