cleanorbust

That isn't the original filter set-up, which consists of a roughly egg-shaped alloy casing in two halves, containing a foam filter between two metal screens. There is one on eBay at the moment (from Spain) but priced to set your pants on fire. If you want one of the originals I think I have one which I'd sell for a more reasonable price - pm me to discuss if you like. You definitely wouldn't want the open filter type on a trials bike - the filter needs to be protected from all the snot which gets directed at the engine area.

Ah yes, if the footrests aren't the originals that would explain your difficulty! Actually the originals aren't too good anyway - much too small and smooth compared with modern ones, so if you can make yours work you'll be better off.

Can't do a photo at the moment but from memory the "straighter" end of spring fits through a small hole in the frame bracket, the other through a hole in the underside of the footrest. The footrest bolt fits through the wound circular part of the spring, there should be a small bush to fit over the bolt there, inside the spring. If you don't get sorted let us know and I'll manage a photo tomorrow.

Except in the post that started the thread in the first place...

Please let us know how it goes...

If you google "Sherco set up" then select the Lewisportusa link you'll find all you need. I think you'd find a 9 tooth front sprocket useful in making the bike beginner-friendly, but by all means try it out as it is so you can appreciate the difference. Change one thing at a time.

Simple stuff really, and now you'll know for next time. Rear wheel next?

There's a video on YouTube called 'Gas Gas Wheel Bearing Replacement" which covers how to get the front wheel out - same as on a Beta. Pictures describe it more easily than words.

If I understand correctly, you're trying to detach the disc from the wheel? If so, that's not necessary. You need to unbolt the brake caliper from the fork leg, slide the caliper off the disc then go ahead with removing the wheel spindle, having slackened the pinch bolts. You'll probably have to give the spindle a firm tap to get it moving. I

Clamp bolts aside, in my experience it is worth replacing what could be old original bars on twinshock bikes and the like. The original alloy bars on my Cota 247 snapped in an ordinary riding situation when they were only 36 years old, just goes to show they weren't made to last after all.

www.allensusedtrialsspares.co.uk

A fresh new plug would be the first thing to try if you've no spark, plus checking the plug cap is properly fixed to the HT lead. Probably worth unscrewing it, cleaning up the lead and re-attaching the cap.

I agree. If it's a good bargain you can always sell it on again but I have a Scorpa SR with the same motor and with 9 tooth sprocket, ignition retarded and slow throttle, all very easy to do, it's a great big softie which a beginner wouldn't struggle with.

It's performance in local trials, on the same sections I'm riding, that would sell me a bike. Couldn't tell you which bikes are doing what in the world championship as it's not relevant to me. In this vein, when Vertigo lost their British Championship rider a year ago my suggestion would have been to get a top centre runner on one in each part of the country, at little cost, to sell more bikes.

The situation you describe would be a 5 in my book. Moving in reverse direction to the course is a failure.

Only if the observer gives a 5. Which, in many cases, they wouldn't.

Or..."I'll let you off cos you rode it well and don't deserve a 5".

I hear Honda are developing special lightweight lead for Bou's bike.

It's the"rigorously and universally applied" bit that's difficult. Some observers will always be lenient, soft, call it what you will, because that's the way they work. Nice people can't become hard and intolerant on demand.

So the problem is large queues putting people off from waiting, and ignoring the rules (doubt they're aware of them anyway) by nipping off to do another section in the meantime. Yet we're told that the sport needs to be marketed to pull in as many additional riders as possible. Longer queues, anybody?

I've known it to be argued that a competitor riding section 1 three times, then section 2 three times, then 3,4,5 etc in a three lap trial is indeed riding the sections in the correct sequence. This isn't what the rules mean, of course, perhaps they need to state each section to be ridden once per lap.

In my 247 I run synthetic two stroke oil at 50:1, 75w90 gear oil (300c) and ATF in the clutch (200cc). No problems with this.

There is also a Clymer manual for Montesas, published in the 70s. Copies come up on eBay from time to time.

Simple really: 80ml to 5 litres = 62:1 ratio 62ml = 80:1 I use 50ml, for 100:1

You should be able to get a puller from www.inmotiontrials.com (same size as for Ossa MAR I believe).