1979 suzuki gs425e

[lmrmllr89]

the standard size for the sprockets is 16/45. Would a 17/43 or a 16/43work? What difference would it make.....or do you recommend sticking with O.E.?

[7981GS]

the standard size for the sprockets is 16/45. Would a 17/43 or a 16/43work? What difference would it make.....or do you recommend sticking with O.E.?

Will it hit Red-line in hi gear with stock gearing?

daniel

[pete]

Will it hit Red-line in hi gear with stock gearing?

daniel

It's possible if she's running right

With my 450 I've stuck with stock ever since I got her and have never seen a need to change...

[lmrmllr89]

ok..the reason i was thinking of changing is cause i can get the chain and sprockets as a kit in those sizes the stock i have to buy seperate pieces. also will mirrors off a 77 gs750 fit my gs425??.

[7981GS]

Then go with the 16/43 sprockets. Your final drive ratio will change little to notice.
From 2.81:1 to a new 2.68:1.
You might drop 1 to 2 hundred rpm's in top gear at 70 mph.

Daniel

[pete]

Sounds like a fair call to me Daniel

The mirrors from many different bikes should work as long as they're the same thread.

Pretty sure all the Zuk's of the same era used that thread, but can't remember if it's 10mm or 12mm now...

Be careful of Yamaha ones though as they have a left hand thread on the right hand mirror.

[lmrmllr89]

last night with the help of some starting fluid..it actually started and ran for about a minute....i dont think there is any gas in it.....but at least now i know it runs....

[lmrmllr89]

Tonight got a few more mins with it .....its starts and idles now .....took the front wheel off...planning on taking it to work and replacing the tire tomorrow....

[pete]

Nice! It always makes a difference when you can see some progress

[lmrmllr89]

Does anyone know if these wheels will work tubeless or do they need to have a tube in them...a regular valve stem won't work in them.....the hole is to skinny.....and if they can be done tubeless where do I find the valve stems.

[pete]

I won't swear to it but I'm pretty sure they're all tube type wheels...

[lmrmllr89]

even the "mag" aluminum wheels??

[ChicagoBob]

In the 70s, even cast aluminum wheels ran tubes.

[lmrmllr89]

ok...thats not what i wanted to hear....but thanxs for the info.....i was sorta thinking that myself after i saw the valve hole..but wanted confirmation.....

[pete]

Yep, my mags are definitely tube type mags...