b40rt

FWIW, I wouldn't even consider stripping shocks until they had a minimum of three trials under their belt.

2018 bike, think I'd be speaking to the dealer / importer.

If anything needs a head mod its you ?

Get the brake shoes back out the bin, various companies can re-line them with oversize brake lining. Useful if the drum is worn.

Check if this is the correct one https://www.splatshop.co.uk/sherco-flywheel-puller.html

The bikes pictured on Martin's site are as originally supplied, the blue one he rides has bars further forward.

2" forward approx. Have a look at this to illustrate footrest position changes over a relatively short period. http://www.motoswm.co.uk/models/models-2/ The svm at the end has the "wrong" position in 1984 ! ( I think Mike Andrews is less than 6' tall btw)

This generalized makes no sense, twinshocks when new, did not all have identical bar / footrest positions. SWM's came from the factory in 1980 with either Marzocci or Betor yokes, a difference of about 2". The Marzocci yoke was considered a better position (further forward) and was fitted by the likes of Martin Lampkin, but retaining the betor forks. In the 5/6 year period swm's were dominant the footrests moved dramatically down and back. This can easily be verified.

I've just checked footrest mounting position in relation to line between axles, even although footrests have been moved down and back, they are are still about 40 mm above. Lineaway hates bar risers, and if riding modern trials at higher level I'm sure he is right, for more classic events they are fantastic. I do occasionally hit the cross bar, but not enough to consider change. Regarding one size fits all frames, Danilo Galeazzi, swm works rider and multi Italian champion, moved his footrests forward to suit his size and style.

@feetupfun @pmkk parallel topic 're footrest position. The 87 Aprilia has had the footrest moved down and back since above, the percentage has dropped to 25% . Bike feels more "planted" The top yoke has been changed to txr with risers, now much more comfortable with no downsides.

Aah, a real topic at last (though I do think you should establish what ratio your running at ?) I would argue that before you can make a reasoned statement for the benefit, or otherwise, to moving footrest, the dimensions of the rider is paramount. A taller rider with rests down and back, and higher bars, probably has a similar weight distribution to a shorter rider in standard position. Greg above mentions modified bikes pushing the front end, which is possibly true riding without touching the clutch. But for those of us that have adopted the one finger approach ,killing the flywheel effect by dipping the clutch, this isn't a problem in my experience.

Something like carb cleaner is better as more volatile. There are crank seals on both sides obviously, but as there is no excessive smoke you need to look at the flywheel side. Remove the cover and spray behind the flywheel onto / around the crankshaft.

Carb leaking is cured ? Assume it is as sounds like running lean. You have tried spraying brake cleaner or similar around carb, manifold etc ?

Your crankcase may be flooded in that case, this could also affect the plug. Kick it over plug out, fuel off, kill switch pushed. Give it a chance to dry out, then try with new plug. Your carb isn't one that you can put the floats in upside down ?

Have you tried a new plug ? Some " petrol " problems are actually ignition, just to throw another variable. What were you doing when the problem started ?

Aprilia's then swm's. That better ? ?

Thanks ? ?

https://www.splatshop.co.uk/hebo-4-pot-calliper-piston-kit.html

Late swm's and twin shock aprilia's are actually the pinnacle, but fantic's are excellent stepping stones ?

The only way to get a test light to go off and on, rather than dim, is to isolate them. Reconnect them once timing has been set.

Alfredo has probably benefited from hrc's lack of vision ?

Never heard of that before, from what I could see you can't search by frame no ? Good tool but would it work for random searches? Come on @stpauls , you must have found your dummy by now ?

Is there a data base of stolen bike details to compare ? The original poster / key board warrior seems to have disappeared !

You can buy a lifetime supply of the proper tyre lube from a major tyre supplier for less than a tenner.

Bizarre comment ! Maybe you should check the definition of "forum" Edit on reflection, is this a snide/veiled accusation that I have stolen bikes / parts ? Very dangerous comment, presumably unintentional ? Clarification required.