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Montesa Cota 123 Assembly


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#1 malcra

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Posted 26 May 2008 - 04:54 PM

greetings, as its been great holiday weather in Hereford today, just putting together a Montesa Cota 123 from 1972 (article here).

I've not got a workshop manual, so couple of questions as I seem to be chased by electrical issues this weekend. No spark yet, but hopefully by the end of the day.

- contact gap ?
- flywheel extraction, specific tool, or is it how it looks ?
- best manual (there is a Clymer classic dirt bike one that includes Montesa's up to 1976) ?
- any idea why I am getting voltage reading to the coil (around 0.6-0.8 volt peaks) and to the plug gap (2.5v peaks) but no spark.
- no earth problems (as though its powder coated, have gone back to metal.

Back to the shed later....


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#2 tryalsryder

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Posted 06 June 2008 - 01:55 AM

look on ebay, manuals come up for sale now and again. I have one, but I sent it off with my 72 to get worked on. I could make you a copy, but I dont know when I will get it back. I keep the 172 manual with the 76. SW Montesa might be able to run you off a copy. Clymer guides are great for troubleshooting and repairs.

#3 malcra

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Posted 06 June 2008 - 08:13 AM

look on ebay, manuals come up for sale now and again. I have one, but I sent it off with my 72 to get worked on. I could make you a copy, but I dont know when I will get it back. I keep the 172 manual with the 76. SW Montesa might be able to run you off a copy. Clymer guides are great for troubleshooting and repairs.



i have a copy of the early Clymer manual now, which is pretty good...its fires but does run for more that 10s, so some new parts here today and engine strip coming up i think

#4 tryalsryder

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Posted 07 June 2008 - 02:19 AM

Sounds like a carb problem, but it could be a lot of things with the vintage bikes. Good luck.




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