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Gas cap gasket/seal

  • Thread starter Thread starter Dougbo
  • Start date Start date
D

Dougbo

Guest
1981 Gs550T with the rectangular gas cap. Where can I get a new rubber seal for this cap ? It is torn and can't find it on EBAY or parts list. Or where can I ind or whay kind of rubber would I use ? It leaks and is torn.
 
Buy a new/used cap or make one. Never seen a PN for one. Maybe use a mud flap ?
 
I really do not want to pay for a new gas cap, $80 on EBAY. Anyone else have any idea's ?
 
The $25.00 ones (caps) from Thailand have a weak key mechanism, but the seals fit...at least the one for my 650 did.
 
What about a piece of 1/16 red rubber gasket material from a plumbing supply cut to fit? not sure of its gas resistance though. It seems to be pretty tough.
 
Good

Good

BigD_83 said:
The $25.00 ones (caps) from Thailand have a weak key mechanism, but the seals fit...at least the one for my 650 did.
Click to expand...

That's good information. I always wondered if the seals would be similar, so now we know.:)

Also, you might be able to make one out of a car or truck inner tube. If it didn't end up being thick enough, you could trace and cut another one and put them together....maybe.:confused:
 
I think Suzuki 85413-70000 is the correct one, and actually seems to fit a ton of Suzuki stuff even outside of motorcycles. Its sometimes hard to determine as for some reason I think they were left out of the parts books. I seem to recall it being slightly different than original when I got one for my GS450 but still works. I see it listed several places as fitting the GS550 too which I think is the same underneath the cap.
 
Wow

Wow

PPPPPP42 said:
I think Suzuki 85413-70000 is the correct one, and actually seems to fit a ton of Suzuki stuff even outside of motorcycles. Its sometimes hard to determine as for some reason I think they were left out of the parts books. I seem to recall it being slightly different than original when I got one for my GS450 but still works. I see it listed several places as fitting the GS550 too which I think is the same underneath the cap.
Click to expand...

I don't know where you found that number but I think you're exactly right!:clap:

I always wondered why gaskets weren't listed on the microfiches but I looked up "suzuki gas cap gaskets" up in the Google 'images' and it sure looks like the right thing. Good find!:)
 
I think I will try 85413-70000 . Thanks for the info and help. :)
 
Last edited:
Wait a second!

Wait a second!

Dougbo said:
My GS550T cap seal us rectangular to match the shape of the cap but I think I will try 85413-70000 . Thanks for the info and help. :)
Click to expand...

Doug, if your gasket is rectangular, I can't imagine that it will work. (Kind of like the proverbial 'square peg in a round hole'.;))
 
Outer shape is rectangular but the center is round. Outer does not affect the seal.
 
Why did Suzuki make so many changes ? I changed the front brake rotor and the only other one that worked was off a GS650. Still need a gas cap gasket.
 
The gasket for our bike isn't sold separately Doug - You'll probably need to see my post above you if you are going to replace it.
 
That is sure stupid, makes me wish I'd stuck with a Honda. Thanks for the answer.
 
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