B52 - CANT GET 4RD OR 4TH

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moley
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Posts: 560
Joined: Sat Jan 01, 2000 12:00 am
Location: EAST SUSSEX UK

B52 - CANT GET 4RD OR 4TH

Post by moley »

Hi, i am going to have a look at a freinds bike with a b52 box in it and he tells me he can select 1 + 2 but cant get 3rd +4th gear?

Anything i should look for when taking to bits?

Andy
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john
Posts: 330
Joined: Tue Feb 12, 2002 12:00 am
Location: GLOUCESTERSHIRE UK

B52 - CANT GET 4RD OR 4TH

Post by john »

If it is third and fourth, then that points to the main shaft selector fork not functioning and stuck in the second gear position allow the lay shaft fork to select first and second.

I have never had this problem but the manual talks about checking for a bent fork.

Personally I would check for correct operation from the cam assembly though to the fork and to check that fork is moving the second gear to engage with the sleeve gear (forth) and the third gear at the right time with regard to the cam.

John
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