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ed bremner

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  1. I'm in Lifton - Launceston - yourself?

  2. not riding much at all at moment....

    but maybe this winter would be good

    whereabouts are you?

  3. Hello! I see you ride a ty175 too. Be good to catch up sometime

  4. Thanks for that. looks pretty simple so as soon as I get the new condenser, I will pull the cover off and change the position. Does the wire need to be a heavyish gauge or will it not matter too much. cheers eib
  5. HI Guys, I seem to have an ignition problem with my early 70's Cota 247. I had a spark....a good one.....and then I didn't! Not totally sure, but suspect it may well be the condenser....so have another ordered to test. but.... I know that there is a suggested mod, where you take the condenser out and place it up higher on the bike, rather than down behind the rotor. Could someone give me a quick run-down on how you do this. Where do you put it? What kind of wire do you use? Where do you lay the wire - how does it get out from behind rotor and through cover? Thanks tons cheers eib
  6. My Cota 247 is back working again....which is a gas. Still plenty of work to do though....front wheel is buckled and I have another one turning up soon. Shockers are pretty buggered....and new chain & sprockets can't be far away. BUT most pressing problem is that it is just very VERY loud. Problem is that it doesn't have any of the original exhaust silencer beyond the fist pipe. It has got one silencer in the place of the middle box which is from a Suzuki RGV250. Looks good but to all intensive purposes is just a through pipe. I know that Dave Renham has got some original back boxes.....but this bike is anything but original and I am quite happy to build a silencer.....I just need to have some idea about how to design it: What baffles? put where? filled with what? Any other advice or links to any material about silencer design for two strokes would be very welcome. I don't seem to be able to find anything on the Web anywhere. I am happy to consider building in Alloy sheet or carbon/epoxy quite happily - any thoughts or advice would be very welcome. cheers eib
  7. Thanks, that sounds like good advice. I have got to make up a new clutch lock washer as the original is pretty bust up. I have some brass plate of about 0.8 to 1.0 mm and have roughed it up in that. Anbody see any problem in using that. It seems of comparible 'hardness' and 'strength' to original. I will try and get some photos together soon. I should say that at this stage, I am working on the principle of a two-part restoration. First, I am just fixing everything that seems obviously bust, but not looking for work. As it was bought as a non-runner, I first want to get it going and see what work needs to be done. I will then ride it for a while (most probably the winter) and then pull it apart again for any engine work that needs doing, plus powder coating frame etc next summer. I don't think it is ever going to be a really beautiful bike....but good enough for me to have a play with over the winters for sure. Thanks again for the help and advice....please do keep it coming, cheers eib
  8. Sorry...... meant to say I live in Cornwall on banks of River Tamar just above Plymouth. Lots of good woods and stuff to play in around here, but havn't found any clubs around here yet, so havn't really explored much further than local field. cheers eib
  9. Thanks for your answers. First......that clutch bolt. Further looking now makes me suspect that the nut is not that rare....in fact a M10 with a pitch of 1.00mm. I tried this many times before deciding that it wouldn't fit.....but now reckon it was just very stiff due to previous owner trying to fit a M10 with 1.25 or 1.5pitch and buggering up the thread a bit. No damage that I could see....but I hope this is it. certainly it does go on....although still stiff and isn't threading....so hope I am ok. if anyone has any other thoughts I would love to hear. Thanks for the advice on dating for V5. I think I can be quite accurate about date of manufacture without going to Sandifords, although realise they would need to give their opinion for DVLA. I found on Spanish site a full listing for every frame number against each change of spec. This dated the frame to late 74. It is an interesting document....and would be very interesting if I could read spanish!!! They came out quite easy........some were ok....others harder. I think the fact that they all have an 'o' ring on them must make them easier to get out and also presumably suggests that they weren't done up that tight either. I have just found some M7 hex bolts, so for the time being will round those off and grind a slot for screwdriver on top. I will ask my brother for some idea on costs for getting the M7s made up. I know that he gets various nuts'n'bolts made up for him. Oh....and yes....I do think that the cota is very pretty ......and the Ossa MAR too..... maybe one day! cheers eib
  10. Hi Guys, New to this forum - have posted introduction elsewhere - although glad to see its not compulsory! A couple of quick questions that some of the Montesa experts might be able to answer: I am re-building a Cota 247 bought as non-runner on ebay (will I ever learn!) So far its been fun, havn't rebuilt a bike in 15 years (last bike rebuilt was a Guzzi) Its a right bitsa with frame no 21M16407 and engine no in the 5000s and a tank/seat unit from late 70s version. OK, questions: 1) Would the fact that Frame is 1974, engine 1972 and they don't match make getting a V5 harder if I was to try? 2) When does the vintage no-tax deal start - 1973, 1974, 1975 - would this bike get it? 3) Does anyone know where to get replacement bolts for the M7s used in case? I would really like to convert to allens if I could find them. Current Clutch case bolts are usable at present, but Mag cover bolts are not present at all and I really will need to find somethign to replace these to keep cover on. Any ideas? 4) What is the nut that holds the clutch in place? Looks like a M10, but with a very fine pitch. Tried a M10 1.0 pitch and this does not fit, certainly a 1.25 pitch won't. Anyone know what this nut is? 5) I might be able to get some M7 Allens custom made (and clutch nut). If I was to do this, would there be anybody else out there interested in having some. It's normally cheaper the more you get. 6) Anybody know where one might be able to get the l/h spring washer that goes under the magneto bolt? Bound to have some other questions. but for now, a big thanks in advance cheers eib
  11. Hi, quick intro: Bought a TY 175 back in early 80s. Played with it and fell off a lot for a few years. Then got heavily into building and sailing classic sailing dinghies, which I still am, see: http://www.cvrda.org/ But with two teenage boys in the family it seemed like a good idea to go pull the TY out of the back of my brothers barn and get it going again. That got me thinking....and looking at ebay....so when a knackered nonrunning Cota 247 came up, I bid and suddenly had a new project. Havn't rebuilt a bike in 15 years so rather rusty (last two rebuilds were a Guzzi and a Ducati). But Cota is coming along....and my riding of TY is slowly getting together....and boys starting to get bit of a buzz and realise there is more to it than just flogging around the field. have fun cheers eib
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