tks
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| posted on 28/5/05 at 06:03 PM |
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Gearbox 'forks' information
i read last weekend an site wich the chap had a problem with his gearbox (on an blade)
the bike had run 25.000 miles...(if i remember) and he did 500miles with this engine in his car (have to ommite allot of trackdays)
but then his 2nd gear forks was totally gone.. it was completely plane...
i was thinking what can be the cause of this??
leaning on the change stick???
(or when driveing the bike holding you feet on the lever???)
i wanted to know this because i have built an electrical actuator wich works with cooordinates and if so i need to set for every gear his own natural
position..
because if put in third en the lever is holden to much up or tomuch down i can imagine it will harm the beast allot....
anyone knows if this is true??
(we could turn the story also the other way round and say is is no problem/harm to lift the lever always a bit to be able to shift faster..)
TkS
[Edited on 28/5/05 by tks]
The above comments are always meant to be from the above persons perspective.
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ChrisGamlin
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| posted on 28/5/05 at 07:23 PM |
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I think forks mostly get bent when the dogs on the gears don't engage properly, or possibly if they jump out of gear. The main cause for this
IMO is "lazy" gearchanging where you don't pull the gear across quickly, or dont pull the lever quite far enough which means you get
a false neutral then have to bang it back into gear. They can probably also be caused by clutchless up/downshifts if you don't lift off the
throtte between the change to allow the gear speeds to syncronise.
Glad your new engine mounts seem an improvement by the way 
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tks
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| posted on 28/5/05 at 09:47 PM |
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uhh
i'm not talking about bending
just about wear...
a fork has normal 2 zones lets say each 1cm2 of area..
but a bad form whoes whas seen on the pic...it had the complete diamter cutted in the fork....
TKs
what moves the gear? the forks??
what is connected to the lever??the drum or de forks??
The above comments are always meant to be from the above persons perspective.
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ChrisGamlin
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| posted on 29/5/05 at 10:38 AM |
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Yep, the forks sit between the gears and slide the gears along the shaft to engage them, so if they sat touching a gear all the time then they would
wear as obviously the gear would be spinning and rubbing against the fork head. The selector drum moves the forks and the gear lever moves the
selector drum so if the channels in the selector drum are worn or the detent springs etc get weak so it doesnt locate properly, this is how the forks
would most commonly get excessively worn Id think
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