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TG1-125 Fork Dismantling

Posted: Tue Sep 11, 2018 2:53 pm
by Redmistracing
I am new to my 1979 Gilera TG1 and need to replace fork seals and possibky bushes. I have partially stripped down the forks, but needto remove damper rod before pulling out the seals. As there is no external bolt on bottom of fork, I assume a screw requires removing from down inside the tube? I looked down the inside of the tube with a borescope and there appears to be a reverse cross head screw? If so, where can I obtain a special driver tool?
Thanks for any help!

Re: TG1-125 Fork Dismantling

Posted: Wed Sep 12, 2018 7:11 pm
by Redmistracing
Ok - so I now have managed to dismantle the forks, after realising there is no bottom damper restraints and the ‘screw’ heads I saw in the bottom of the forks seem just to locate the damper tube.
So I have new seals coming and will shortly need to refill with fork oil.
The next question is what weight oil and what level or qty do I refill with? Anyone know?

Re: TG1-125 Fork Dismantling

Posted: Thu Sep 13, 2018 5:42 pm
by Joachim
looks like all the TG1 pros are out for a holiday :(

ciao Joachim

Re: TG1-125 Fork Dismantling

Posted: Sun Sep 16, 2018 7:53 pm
by Nozem
Hello Redmister,

Google is your friend, try searching on "Gilera TG1 forcella" or "Gilera TG1 manutenzione".
I found this article on the Gilera Bi-4 website; http://www.gilera-bi4.it/download/Rivis ... %20125.pdf
According to this article the front fork of your Gilera TG1 needs 180cc oil per leg (gambo)

Greetings,
Nozem rulez

Re: TG1-125 Fork Dismantling

Posted: Mon Sep 17, 2018 3:16 pm
by Joachim
maybe this is also useable for you

http://www.bobwrightmotorcycles.co.uk/h ... gilera.htm

scroll down the side until you find the manual download area

ciao Joachim

Re: TG1-125 Fork Dismantling

Posted: Tue Sep 18, 2018 9:12 pm
by Redmistracing
Many thanks!