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it never rains but it poors
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last weekend i decided to check the clutch plates on my YZ125 once again.
After cleaning the carb and filter the bike ran so much stronger that the
clutch couldnt control all that power.
Disassembled, sprayed gearbox's internals and clutchplates with
brakecleaner.
Plates looked OK, the springs i was not too sure about.
Bought a few nylon washers with exact same inner diameter as the springs,
1.1mm thick, to use as preload spacers.
Cut the outter diameter with a sharp knife so that it matches the outter
diameter of the springs.
Given the fact that the rings will be locked up on all sides that seemed
like a good plan.
Alas, while fastening the tiny bolts that hold the springs a booboo
happened.
I had the clutchbasket-gear and cranck-gear locked with a rag when
dissasembling.
Silly me, i forgotten that when reassembling you turn the bolts the other
way ;(
So, the rag gave way while fastening the last one, the clutchbasket slipped
through my fingers (without taking out any skin this time) and the
ratchet-or-bolt skipped a notch.
The mini-ratchet i use on lowtorque bolts has been known to skip a notch now
and then.
Ofcourse i just had to rotate the clutch a few times to try and see if any
post was croocked or bent.
This automatically made me loose track of which one of the posts i last have
been working on.
Pushed on the clutchcover and called it a day.
Now these horrid thoughts haunt me....what if the bolt stripped the thread
off of the inside of the post???
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You will never know unless you take the clutch-stack apart again. You
will have nightmares. The bolt will fail in the most inopportune moment.
It will totally destroy you bottom end. ;-)
Yes, you'll see if you have stripped a thread when you look at the bolt
when it comes out. It will have a little "aluminum spring" or at least
aluminum debris sticking to the threads. You can also use a tapper (or
thread "file") and see if it wiggles if you've turned it all the way in
but without force. In that case, you're hosed.
But I doubt that this has happened. Remove the cover, check the threads
and use the opportunity to give every bolt a tiny drop of Loctite 243
(the blue stuff) so it won't come out by itself and sleep tight again.
Volker
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Mail replies to/an V B A R T H E L D at G M X dot D E
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Imagine a loose steel bolt inside a running gearbox ;(
So now what???
Making new thread in all posts, buying new bolts and new springs..or
locktite all bolts a bit and hope for the best??
Should i be able to see alu threads in the offending bolt or would
dissasembling clean the bolt?
Would the gearoil get hot enough to dammage the nylon spacers?
Dang i wanna be rich so i can just change bikes instead of change the oil.
Grtz, P1
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Don't worry about it, it will be fine - the little bolts just need to
be tight, the springs keep them that way - the torque setting is just
so you don't over-tighten. I'm sure I'm telling the truth because I
believe myself.
Or something.
DirtCrashr -
'97KTM300M/XC (Up on blocks),'99BetaTechno (Up on blocks)
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