huski

They're a really good bike,much lighter, ,, more responsive,steer well.The clutches rattle till you pull the lever in,the kickstart mechanism is weak but not too difficult or expensive to replace when they break.Suspension linkage needs frequent greasing,clutch can drag if the plates swell up which shows up as a heavy lever pull.They clunk changing 4th to 5th which gets worse on high hour bikes.Anything else is wear and tear which affect all bikes.Buy the best condition one you can find,rather than a cheap one that needs work

It must be a 0.5 gasket,surprising it didn't compress more though.You could go thinner if you want it slightly pokier but it won't make it really powerful with the thinnest

Strip it down first,the bushes may be Ok.Splatshop or TrialsUK are the best bet,never tried Jitsie,Allballs were OK too,Sounds like you've had a problem with them

Try an extra base gasket,cheapest and easiest way to calm it down a bit.If it's still too powerful add a flywheel weight.Changing it for a Beta sounds too expensive,unless you've tried one,and really prefer it

With this damn coved the BTC has too few rounds to mean much unfortunately,can see why the top 6 chose to concentrate on the WTC

Is the ignition timing right?

Shaft can wear where the seal runs on it,the impeller will be fine.As Lineaway says,replace the cylinder head 0 rings,cooling system is pressurised from combustion chamber leaking it

It should have a plate near the headstock saying something like Raga Replica No 36 (for example)of 400 if it's a real one.Not really worth much more now than a standard one of similar condition

Head spacer or low comp head,not both unless you want a very gutless bike

2005 ish

There's no duff bikes in that list,or one much better or worse than the others.You need to try all of them in trials conditions and decide,then buy the best condition one you can.None of them are without typical problems E.G. Gas gas kickstart gears,they are all lighter than the 4RT though

Can you bounce a Sherco around?You could adjust the suspension on the Mont to more bouncy if you feel the bike is difficult to bounce about,Annoyingly,those that can do it well make it look easy,when it's certainly not

Test all the brands,don't restrict yourself to 2,you need to know which is best for you

They ride well,good suspension,light and powerful,but don't seem popular.Expensive new,depriciation worse than the more established brands .Trials riders seem suspicious of the fuel injection as something they can't fix if it goes wrong,although they accept the Montesa 4rt,probably because it's been out a long time and built by Honda. If you fancy a return to 2t,does it have to be a Vertigo?

TRS kickstart looks very similar

Stay with the Montesa,Proven quality bike.Used Vertigo are almost unsellable in my area

Can you grind a little bit off the screw?

I'd speak to the importer,wondering if it's something they've come across before?Maybe there's parts that are different on later models that you could retro fit?

All the Gas gas pros I've owned have shifted 4/5 with a loud clonk,which is normal,which got worse with age .Never had a grinding noise,I'd be talking to the dealer.Difficult when you can't compare it with another bike and the dealers not local

Carb flooding,check the float and float needle valve shuts off the fuel.Is the fuel consumption really high?

Does the pedal feel firm,or spongy and have long travel?If it's firm the pads are contaminated and need replacement,sanding them helps and is worth trying though they won't be as good as new.Zap the disc with brake cleaner before you fit new ones

None of them are more or less reliable than the others,it's down to maintenance and riding style,they all have their good and bad points.Support from the importers of the Beta and TRS is excellent,don't know about Sherco as I've not had one for 10 years.Id pick the brand and engine size that I liked best

If you've got 12volts DC at the motor terminals and the fan blades spin freely and it still doesn't work properly it's new fan motor time

9nm.if your torque wrench goes that low.I suspect they got cracked by the previous owner not tightening the bolts equally a little bit at a time

That's right.Leave the mudguard bolts loose,also the top yoke fork tube bolts and give the forks a good bounce to line things up.Then tighten the top nut a,then the fork tube bolts a little at a time so you don't crack the yoke,then the mudguard.Youll find that tightening the top nut slightly tightens the bearings,you might have to slacken the bearing nut to get the bars to turn freely.Probably have to adjust them again once you've done a trial and they've bedded in.If you drill and tap the head tube to take a grease nipple you can force out any water that gets in,the bearings won't need stripping out ever again