Cota 172 Restoration

Need help finding information or parts for that old machine in your shed? Someone in here will know!

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David Lahey
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Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Re: Cota 172 Restoration

Postby David Lahey » Wed Dec 14, 2016 10:27 pm

First try WD40 and a soft hammer
Then try gentle flame heating and water cooling and WD40 and a soft hammer
Then carefully push (spring) the frame sides slightly apart and cut through the swingarm bolt with a hacksaw. You may have to cut through both ends, depending on the frame geometry. This is usually done with the bike upside down.

Things not to do:
use a press
use a porta-power
bend the frame


relax, nothing is under control

David Lahey
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Joined: Thu Jun 05, 2003 7:01 pm
Bike: Many Twinshocks
Club: CQTC Inc, RTC Inc
Location: Gladstone, Queensland

Re: Cota 172 Restoration

Postby David Lahey » Wed Dec 14, 2016 10:29 pm

Once the swingarm is free of the frame, you can usually then push the inner bush out of the outer bushes then push out the outer bushes


relax, nothing is under control

Phil 850
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Re: Cota 172 Restoration

Postby Phil 850 » Sun Dec 18, 2016 8:37 pm

Well I finally got my swing arm off but removing the bushes was a challenge.
I had expected bronze bearings but it had rubber bushes :shock:
Image

This is what is shown as replacement parts as I had expected.
Image

Do :montesa usually have rubber or bronze swing arm bushes :?



JAM RACING
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Re: Cota 172 Restoration

Postby JAM RACING » Wed Dec 21, 2016 10:16 pm

hi their,,,,,,,the moty im doing up has that same rubber bush arangment as you have pulled out,,,,,,luy your kick starter splines....your look pretty good compared to mine :D :D



Phil 850
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Re: Cota 172 Restoration

Postby Phil 850 » Fri Dec 23, 2016 9:24 pm

Looks like I pulled the swing arm apart for nothing :(

Is the kick start shaft easy to replace. Do you have to split the crank cases, or just the clutch cover ?
I have a new kick start shaft on order, so if it's easy I'll do it !



JAM RACING
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Re: Cota 172 Restoration

Postby JAM RACING » Sun Dec 25, 2016 6:48 pm

No its only a side cover.....i think the root causes of the twist in the shaft is of the following
both bad tuneincorrect tune and or timing
and poor setting up of the kick starter stop.....many i believe like me tried lifting the kick starter to get the bxxxxx thing going.....but thats a fail as kicking past the footpegs ( mine had a string on it for such occasion)
Thus twisting the shaft
MY ISSUES WERE THE POINTS AND A DAMP MAG.
Im running a NGK BP6ES PLUG and it loves a fat idle(rich)
I have scotch keyed the starter for now.....it already stuffed so why not...as the previous owner welded a kick starter on (and a lot of other bloody things too) so a lot of my time has been wasted dremelling this barbarism out of the bike
The frame on this one had broken steering stops the result of previous misadventure and on dressing the frame down i found it cracked and twisted.....Fortunately some one sent me to aldo and all is good on the frame and Im yet to finish the tank as it stooped the forks in the crash....Had enough bog on the tank to look like an EK holden from manly


hope this helps



Phil 850
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Re: Cota 172 Restoration

Postby Phil 850 » Mon Jan 23, 2017 9:06 pm

Picked up the frame from the sand blaster and painted it with KBS Rust Seal.
It's a self levelling paint so you can paint with a brush and it still comes up smooth.
Image



holster
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Re: Cota 172 Restoration

Postby holster » Tue Jan 24, 2017 10:06 pm

That looks great =D>

- how much paint did that take and is it just one coat required?



Phil 850
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Location: Western Sydney

Re: Cota 172 Restoration

Postby Phil 850 » Wed Jan 25, 2017 9:06 pm

I bought a 300ml tin at $30 and did 2 coats on the frame, swing arm and side stand.
Probably only used about 100ml.



Phil 850
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Location: Western Sydney

Re: Cota 172 Restoration

Postby Phil 850 » Tue Feb 28, 2017 9:09 pm

Phil 850 wrote:Thanks for the advice.
I'll start searching.

Any advice on how to remove the steering lock. I don't have the key :cry:
Image

I had the friendly folk at Multisecure locksmiths in Penrith pick my steering lock and make a pair of keys.
Image
Now all I have to do is fit the dust cover back on.




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