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netley

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About netley

  • Rank
    Advanced Member

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  • Bike
    Bultaco&Montesa

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  • Location
    Cornwall
  • Gender
    Male

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  1. netley

    Montesa 349 clutch fluid.

    Well I have had no luck with getting the primary drive gear off. Searched for tools and then rang InMotion Trials and asked if they sold a puller for this. He laughed loud and heartily at this and said to grind the gear off and buy a new one from him. An old friend who's a right clever bugger, had a look and later rang me to send him dimensions for the shaft and drive gear, etc. He popped over today with something he'd made. I fitted it, tightened it, gave it a good whack and tightened it again. Off it popped. Here is a video of how it works taken when I had put the gear back on for realism purposes. One happy chappy.
  2. netley

    Montesa Cota 349 1980

    I would suggest using the decompressor lever (by the clutch) if trying to start it or you can get a very sore leg/shin if it kicks back. It lets you move the piston just past top dead centre to a position where you can have a swing at it. Slowly push the kickstarter down until it won't move then pull the decompressor lever in until the kickstarter will move slowly and it has gone over TDC. You should be able to kick it all the way down then. Wear sturdy boots and try it a couple of times with fuel off first to practice. Everyone starts somewhere and there is a wealth of knowledge here and I'm no expert at all so I'm always asking advice. Keep us posted.
  3. netley

    Montesa Cota 349 1980

    You need to change gearbox oil which is the plug under the bash plate and fills above in the middle of the engine. Also the transmission oil which drains from below the gear lever and fills from above it to the left of the clutch arm. Did you see the link to the manual Sparky? I can send a pdf if you would like. It's in Spanish with English as well. Oils are listed as Gearbox SAE 90 and transmission SAE 10w30
  4. netley

    Montesa Cota 349 1980

    Small lever opens a valve next to the spark plug which stops any compression in the cylinder. This allows you to turn the engine over past TDC when starting. I wondered if that was stuck open. TBH I'm pretty new to these myself and also in South West. Is there compression when you put it into gear and try to push it with clutch released?
  5. netley

    Montesa Cota 349 1980

    Basic owners manual with parts diagram. http://lamaneta.org/manuales/manuales/Montesa Cota 349 Manual de Instrucciones 4587.pdf
  6. netley

    Montesa Cota 349 1980

    Breather pipe just hangs down into bash plate I think. Gear oil should drain through hole on bash plate and you should change transmission fluid as well. I will attach basic manual for you shortly.
  7. netley

    Montesa Cota 349 1980

    It looks fabulous compared to mine. Pipe from front of bike is a breather. Does it have a decompression lever? It is like another, smaller, clutch lever on the bar with the clutch. It pulls a cable next to the spark plug.
  8. netley

    Montesa 349 clutch fluid.

    Thanks. I have been searching and did find a thread. No luck with 3 leg puller as you say.
  9. netley

    Montesa Cota 349 1980

    Where are you based? Go through old posts on 349's, there's lots and check InMotion who have very helpful staff on the phone and sell most patts new and some old. Good luck.
  10. netley

    Montesa 349 clutch fluid.

    Well You will have the last laugh.... Any sage advice for this recalcitrant bugger?
  11. netley

    Montesa 349 clutch fluid.

    Had a short chat with the guys at InMotion who reckon it is the crank seals. Pulled everything off with remarkable ease. I love the design of the clutch assembly which came off in one piece. Need to get a puller for the gear on the crank in front of the seal. I'm hoping my local bike shop MY Motors will have some of the parts on the shelf as Melroy used to ride these things competitvely back in the day.
  12. netley

    Montesa 349 clutch fluid.

    Ok. I'll look at the gearbox vent tomorrow. Cheers.
  13. netley

    Montesa 349 clutch fluid.

    I have driiled 2mm hole in the filler cap and let the engine cool. Started it and within a few second there was oil being pushed out. I put in 300 cc of oil when I changed the oil as per manual. I fear chank seal gone and pressurising the clutch side. Any pearls of wisdom?
  14. netley

    Montesa 349 clutch fluid.

    I've washed out with white spirit and refilled. Slightly milky seepage from gear and clutch lever shafts. Undid filler and it is under pressure. Where's the breather? Neil
  15. netley

    Montesa 349 clutch fluid.

    Golden and lovely. Where would the vent be? Someone said it could be blocked which could have caused the bubbling from around the clutch arm when it first happened.
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