Filler Cap Help!

[Slinky]

Hi, i'm new here so please be gentle! I'm in the process of building a 1977 GS750 from a bag of bits and it's getting there. However i've got a few niggly bits and pieces to sort out. On of the most annoying ones is that I didn't get a filler cap with the tank. I went and bought a GS750 one, as you do, and behold it is too big! Doesn't fit. The GS750 cap seems to fit a hole about 45mm across but the hole in my tank is only about 35mm. So now I'm wondering is it a tank off a different bike, or perhaps there are variants of tank for the GS750? Either way I can't find a cap that fits. Any ideas? Please help!

Thanks.

[Fazz711]

Hi. 

Welcome to OSS. 

O. M. G. 

Another brown seat. 

Looks simalar to a Gurls blouse tank. 

 

[Blubber]

Hello and Welcome

 

Some say it's like group therapy on here.. dunno if that's good or bad though 

 

( and yes... some words are auto-corrected due to a script ) 

[Dezza]

A GS750 tank will fit the cap, and a GS750 seat will then fit the tank better, especially if it's covered in black vinyl. Welcome

[Swiss Toni]

Hey Slinky, welcome to OSS! Your tank may be off a GS550. Having said that, the opening does seem small, but will still take a std filler nozzle. 

[gs7_11]

Oh dear.

[Slinky]

Well I know you're all sat on the edge of your seat waiting to know if the filler cap saga has been resolved. Well I'm very happy to say it has. The tank is the original GS750 one and it seems the early GS750s need a smaller cap, same size one used on the earlier GT750. So, purchased a GT750 cap and voila. Happy days. So now I can get back to caressing that lovely brown seat 

[Ronny]

On 9/21/2019 at 9:45 PM, Slinky said:

Well I know you're all sat on the edge of your seat waiting to know if the filler cap saga has been resolved. Well I'm very happy to say it has. The tank is the original GS750 one and it seems the early GS750s need a smaller cap, same size one used on the earlier GT750. So, purchased a GT750 cap and voila. Happy days. So now I can get back to caressing that lovely brown seat 

With your beard? 
 

Welcome,  by the way!

Edited September 24, 2019 by Ronny
Forgot my manners

[johnr]

On 9/21/2019 at 9:45 PM, Slinky said:

Well I know you're all sat on the edge of your seat waiting to know if the filler cap saga has been resolved. Well I'm very happy to say it has. The tank is the original GS750 one and it seems the early GS750s need a smaller cap, same size one used on the earlier GT750. So, purchased a GT750 cap and voila. Happy days. So now I can get back to caressing that lovely brown seat 

that was cos the early gs's used less fuel so didnt need a big hole to fill the tank...........