vintagecota

Spoilt a nice bike! BTW those tanks hold 4L of fuel.

Hey MS, I'm wondering why your 349 has different stripes than mine. Yours looks the same as the '78 348 stripe while mine is the same as the brochure photo, with "COTA 349" in the stripe. Was yours a very early bike? I know Brit bikes had the alloy tank with a cover, but I wonder if the stripes were different because of the lack of the sight tube as shown in the photo. Do you still have the bike? Is the photo recent? p.s. I bought the Hydrobags

Hi MS83, mine looks identical to the top photo except mine doesn't have the yellow decal on the airbox. As far as I know, it's not supposed to be there. Anyone know for sure? There's a red one on the other side of the 348s. but not 349s. Same airbox though. Martin, thanks a lot! Those look like they'll clean up. Sorry on the clutch plate... I'll keep looking. http://www.motocra.com/jmdurante/catalogos/Cata_Cota349A.jpg[/img]

Hi, does anyone out there have a real nice looking pair they'd sell me for my 349 Cota museum bike? They don't even have to work, just look good.

This has got to be rare, eh? kids Merlin

There are circlips on the transmission shafts that keep the gears separated from each other. The circlips occasionally break and let two gears engage at once. This may be the problem.

Is this close enough? http://mototema.com/tienda/index.php?cPath...7fdedc82a5d22c3

Here's a photo from the movie...

What's the deal with that funky exhaust? Is it another product of the post halucinogenic 70s?

Here are some photos by Ron Walsh of this fall's Classic Trial at Ioco, near Vancouver. Guess which bike is mine http://www.ronwalsh.ca/2005ClassicTrial/20...assicTrial.html

Shouldn't the big Majesty have a chrome plated frame?

"My" hole is at the bottom of the travel, and I've only fixed it temporarily until the mag comes off again, then some JB weld will hold it until the kicker goes through it again. Care needs to be taken, and each successive owner finds that out themselves.

A friend of mine bought a well used 348 Cota last year and rode it a couple of times without much pleasure. It was very hard to start and when it did, took time to pump up and go when you turned it on. It sat in his shed 'till last week when I went round to fetch it. He helped me move, so I told him I'd fix it. The bore was like glass and the piston clunked around in it, so I had it bored and put in a new 1st over piston. It started on the third kick after the new parts, and with a little fiddling with the Anal carb it ran very well. so... with my friend's blessing, I decided to give it a go last Sunday at the Blue Mountain trial, here near Vancouver, B.C. I took it out of my van and warmed it up, blipped around the car park a couple times and shut it off for the riders meeting. Ready to go, and no start.... kick, kick, kick, ad nauseum. Finally, after trying everything, it lit off, and away I went, already tired out. The bike ran good and started first kick at every section, but I rode like crap for the first loop and came in for a well deserved 10 min. rest... Loop 2, no start again. Loop 3, same thing except worse. Everyone else in my group left without me and made it through section 3 before I got started, rode straight through the sections, with fewer dabs than before, and caught up with the group. I was wasted for the two following days. Well, I figured it out. I had intermittent spark. Cota 247s and 348s (and 349s) have this nasty trait. The kickstart shaft has a nasty stop built into it that looks like a shark's tooth. The stop rests against a pad (at about 1:00)when the kicker is up and turns with the shaft to face down (6:00)when the kicker goes to the bottom. The problem comes when the rider removes the kicker and replaces it from the 1:00 position (where it can bump your shin on a climb) to the 2:00 position so now when you kick through, that nasty shark tooth ends up at the 7:00 position, punching a hole through the webbing between the chain drive and the magneto housing. The chain shoots dirt right through that hole and the mag makes sure pieces are distributed to the points. I fixed all that, and with a bit more carb fiddling, it runs GREAT!

I have it from a Bultaco expert that they made "about 2500" from '74-'80.

Thanks for the kind words, but actually the manual calls for 300cc of 90wt in the gearbox and 200cc of 10W30 in the clutch. ATF is now recommended for the clutch.

Not sure why, but I'm trusting an ex-Montesa mechanic who has copies of all the service bulletins for that info.

The factory later revised the clutch/gearbox capacity of the 74/123/172/200 engine to 900cc.

Even flat on his a$$ he's got style!

Here's the A drawings: http://epll.no-ip.com/cota25des/cota25des.htm

I've taken digital photos of the parts book for the Cota 25, which is the same for the 25A. The 25C has a manual 3spd. and the trans will obviously be different, but you're welcome to the ones I have... shoot me your personal e-mail and I'll send them off. I might be able to find the C drawings somewhere, let me check...

Does anyone have a Cota 25 tail light lense they can part with? It's small, about 1-1/4" round, dome shaped and screws onto the light base. It's the only thing I need for my 25 and so, of course, will pay WAY more than it's worth to get one.

10-30 Castrol is what I use.

Yes, there is a detent plunger on the top of the left case half. It looks like about a 19mm bolt head with a large erect nipple. Now you know why I like Montesas so much.

Excellent! What was the problem?

If you look closely at the slot in the face of the shifter body, you'll notice it's not down the middle, it's offset slightly. If you've got return spring action, chances are you've got the spring and discs assembled correctly. That's it! vintageCota