[GasGas identification]

Well the bike pictured is 2001/2003 Also you say you ride a 2000 280 txt Pro Sorry but the Pro model didn't come out until 2002 . check the Vin against  pic

[Engine over heating]

Just join the two wires together that fit on your stat,ive used a car fuse,or just a piece of wire.If testing stat in boiiing water just set your multimeter to continuity,if stat open there will be a circuit ,new stats approx £20+ depending where puchased

[Rev3 rear wheel (2005) in a Beta Evo]

I would have thought if you removed the Evo rear wheel and tried the Rev 3 wheel you should be able to measure what size you require

[Beta rev 50/80 help needed]

[Serial number]

https://betausa.com/trials-hisotry/

[Serial number]

Best bet is drop a e mail to Beta uk https://www.beta-uk.com/index.php/contact-us

[Rim sizes]

Yes the 40 refers to number of spokes

[2007 Beta 80 clutch plate removal]

Can u fabricate something simular to pic even a straight bar with 2 studs  across the top 2 holes to hold it

[2007 Beta 80 clutch plate removal]

Is it just the bolt or whole clutch basket that's turning when trying to slacken the bolt.If it's the whole clutch basket try putting a thick hand towel between the primary gear and clutch basket gear .that way it will lock the two but not do any damage to the teeth of either.used this method on a gas gas.Making sure locking tab is off the bolt

 

 

[montesa 315r its a normal sound ?]

Just a bit of Piston slap,nothing to worry about. Enjoy it.But if you do go down route of replacement..

[Wheel hub bearings and seals 247 Cota]

Couldn't you use these instead of the open type http://www.akbearings.co.uk/product.asp?P_ID=658 or these https://simplybearings.co.uk/shop/p166020/KOYO-62042RS-Rubber-Sealed-Deep-Groove-Ball-Bearing-20x47x14mm/product_info.html

[2008 rev 3 250]

Yes you can remove it,it will be quicker pick up ,and put a 270 top end on then it will be sharper lol

[Which way around]

[Which way around]

[ST125 jet sizes]

2009 handbook  here https://www.sherco.com/wp-content/uploads/2009MaintenanceManual_ST2T.pdf

[ST125 jet sizes]

This is from 2009 couldn't find a 2008

[Balancing advise needed]

I'm crap at balance , but my grandson at 15 got on mine stood there for over 5 mins no hands ,and he's never been on a motorbike before clever little so so.

 

 

 

 

[evo rear brake bleed]

Have you cracked the banjo nut open when trying to bleed the system i did on my Evo when i lost all my fluid.got my pressure back within minutes.

[Rev 3 270 clutch whirring?]

That's not normal iv'e had 5 rev 3's never heard the noise you are describing,.and rebuilt 2 to replace  main bearings.

[4rt 2014 nightmare to start]

2015 so should be ok http://montesatrials.com.au/store/wp-content/uploads/2014/11/2015-Owners-Manual-Cota-4RT.pdf

[G'Day]

Have a word with this guy Bill Beveridge sure he has done this conversion for someone find him on FB Hard To Find Twinshock Trials & Aircooled Mono Group

[Beta techno 250 gearbox oil]

http://www.gasgasuk.com/pro-clutch-information-march-06/

[Observer problem.]

My local club pay £15 to observers and still struggle,seems like every one wants to just ride.

[Beta 50cc Zero]

SPECS

[Beta 50cc Zero]

Sorry never seen 1