bilks

The one that's painted is your Air screw not pilot jet,normally set at between 1 1/2 to 2 1/4 turns out.The pilot jet is inside the carb,

You can manuals manuals here http://www.gasgasmotos.es/en/manuals.html

What you need to do first is make sure the rest of the carburettor is clean inside, you need to remove it from the bike, take the 14mm brass nut out from underneath and remove the float bowl, line everything up on the bench in order and remove the pilot jat and starter jat. blow them out with compressed air and refit back together... By the sounds of it I bet the pilot jet is blocked!! With the fuel screw (the one to the left of the idle screw) turn it all the way in, then back it out 3.5 turns, this is a good base setting but all bikes run differant. With the tickover screw you need to just start the bike up and turn it in until the bike is just ticking over nicely or where you like it, if the bike is running lumpy (rich) then just turn the fuel screw in a quarter of a turn at a time until it runs better. If the bike is hunting for fuel (weak) then turn the fuel screw out until it runs better... Hope this helps copied this to save typing

Try the Gas Gas Pro listed on Ebay here in UK as same.http://www.ebay.co.uk/itm/170698300537?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Try these http://www.trialscentral.com/forums/topic/49747-free-trials-training-youtube-clips/

99% sure normally copper washers can't remember shows in parts list but not numbered depending which model you have.

This link still works for some info at the moment. http://www.gasgas.com/tech.htm

Try slackening your adjusting screw on your lever.so it only starts to work 3/4 to half way in but make sure you still have full travel.when operating it.or try some of these fully adjustable,for reach i use these on my bike.http://www.ebay.co.uk/itm/GASGAS-TRIALS-APICO-BLUE-TRICK-AJP-FLEXI-LEVERS-/191787138808?hash=item2ca7677ef8:g:hqAAAOxydlFS8W5A

To fit the 2006 mudguard you need the filter/seat top also.I had same problem with my O2.I fitted airbox/filter top from a 2004 to mine.

The 125 front pipe has normally 2 weld rings on the front pipe welded together because of the reduction in size 125 cc.roughly level with the barrel .The 250/270 front pipe is 1 piece.http://www.betausa.com/node/751

Well looking at parts manual all the clutch parts are the same 125/250/300 for the 13 Evo.

There is a man who can sort the Rev3 (and others including Ohlins) shock! No schrader valves or bodge jobs but a proper strip, Had my Rev 3 done,don't know if he still does them worth a call. His name - Andy Dawson. His number - 07973 628270

Plenty of info and videos here http://www.trialspartsusa.com/youtube.html

Model and year might help.lol

Model range here but could have had frame changed because 2009 frame used to crack and the rad filler comes out of the side of the frame.2010 on came out central front between the front frame rails.http://www.betausa.com/node/751

Should be EVO if it's 09 still not bad price . http://www.betausa.com/node/751

Going on the front brakes would say 98 tx. 99 txt had twin piston calipers.

This one is uprated http://trialstribulations.net/index.php?main_page=product_info&cPath=34_66&products_id=2415 They also do the side stand and mounting.

There's not one for the 280 either only the parts list for that year.

Don't think you will find one unless someone has one that came with there bike, but this might help. . Spark Plug NGKBP5RES, Champion RN11YC, Bosch Platinum WR9DP Trans/Clutch Oil Always 5W30 (Not 10W40), 650cc normal motor oil (Castrol/Penzoil etc). It is not recommended to use synthetic oil. Gasoline 95 Octane minimum. Premix Between 80:1 and 100:1 Brake Fluid DOT 4 is standard. DOT 5 is fine. (All higher numbers mix with lower numbers). This was taken from A Gas Gas site. Also loads info here http://www.trialspartsusa.com/tech.html

The model range here also check Red for 2004 rear shock for damping with the adjuster at the top of it. can be expensive to repair or replace Front forks muguard support bracket is across top of the forks not up and over as in earlier models,2005 onwards have black coated fork stantions,also the filter support brackets not cracked or broken will makes the rear mudguard sit a lot lower. but only about £15 each to replace. you can also check my profile and see a pic of my 2004 Rev 3 Check out both of these links http://www.betausa.com/node/751 http://www.motomerlin.co.uk/moto/motobeta.html

This video shows testing shock with spring removed.you should be looking for pressure both ways compression and rebound without knowing length of original spring, hard to say if the spring is any good maybe they had adjusted it up. .https://www.youtube.com/watch?v=1irem3oC4xw

http://www.betausa.com/sites/default/files/pdf/2006%20Rev%20Owners%20manual.pdf

Only the water pump housing case they tend to corrode,so check your water level reg.or even remove to check it's ok.Plenty info in the Beta Forum.

The tank breather pipe is normally just couple inches long just sits there on the tank cap .Champion spark plug N7YCC ,550cc gearbox oil 20w40. from empty.But i used ATF i know lot of ppl frown using this,changed it every few trials cos it's cheap enough and never had any problems.Also there is a clutch mod if you check the Beta forum out.Iv'e had both Pro 125 and cpl Rev 3's The Pro felt a lot lighter,but prefered the suspension on the Beta.each to there own .