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iconic558

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  1. Maybe useful, there's a few VM carb threads here. Mikuni Tuning and Jetting Guide - THE VINTAGE BIKE BUILDER http://www.vintagebikebuilder.com/mikuni-tuning-and-jetting-guide.html The OKO is a VM copy from what little I know so may help on these too. 😎
  2. Hi there, maybe worth checking if you have the 'correct' jet needle and body. ......from your symptoms, I wonder if your throttle slide has too small a cutaway, again various sizes available. Good luck.
  3. Many thanks for your help guys, very interesting 😎
  4. Title says it all really.....or more a case of what was lying around in the p*** and panic before they closed up shop? Many thanks guys, stay safe
  5. Dave there is a Facebook site dedicated to the 247, lots of 247C owners on there😎 Great bikes, I love mine, super smoooooth engine and physically a small chassis, all really helps on the modern day sections. The 'C' is for competition, they were designed to be lighter than other '247' class bikes. The odd cubic capacity was something to do with French tax breaks as France was a large market for Montesa back then. You'll probably know by now that most simply put a '250' jug 'n slug on it as the 237cc pistons/rings are made of unobtanium.
  6. looking for a website for trials events, enduro and road/circuit racing would be a bonus too ...off to tour France late August by 1992 Honda Revere again (remember them?) or new fangled high tech Wee Strom not sure which yet, so would be great to take in a trial etc Then off to Northern Spain. cheers guys
  7. I know the current wisdom is 250 jug n slug but is anyone doing the original 237cc piston kits yet? Cheers guys
  8. iconic558

    Steering

    PS I should add original as left factory, some bikes head angles 'fatten out' with use so I'm told?
  9. iconic558

    Steering

    I've never ridden a cut 'n shut that rode any good....they tuck under or fall into corners in my experience. Good friend of mine has a very modified TY175 on mark 5 frame, nothing on that bike is std bar steering geometry. He has tried various head angles but feels Yamaha got it right back in the day.
  10. I gota say, my SWM 320 1980 std bar 10mm on the arm was THE best clutch of any trials bike I've owned, modern or old. I rode a new 1982 back in the day and that was fine too. Just had new proper cable, proper Domino leavers and perches, steels roughed up with 80 grit, running ATF, set up correctly.....and greased balls oooer.
  11. PS I do wonder why trials shocks have gas over oil...it's not what I would call a heavy duty cycle?
  12. Wow, I've never seen a C clip to retain a rear shock. Cool idea. I took the shocks off to grease up the mounts & fter looking at my shocks closely they are actually quite new, they have 504B on the bottom of them? Compared to the gas Betors on my SWM, they are a little oversprung for my weight. These shocks are all black and oil only, no gas, possibly NJB Clubmans? I'll give the boys a call tomorrow. Thanks for your help guys
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