Jump to content

arnoux

Members
  • Posts

    321
  • Joined

  • Last visited

Everything posted by arnoux
 
 
  1. The Beta Rev3 plastic coil protector made a perfect protector for that water pump hose. You had to trim a little plastic of the long "tongue" part, and add a little spacer behind the securing bolt, but it was like it was made for it, and a perfect protector. Wiseco made a piston that brought it up to 270cc which helped a lot. You had to bore the cylinder and have it re-nikaselled but it was a good mod. Also a lot of the reed cages had no no reed stoppers installed so the reeds fluttered badly at bigger revs, so adding the curved reed stoppers helped at high revs. They were standard Yamaha stoppers we used to install from memory. British bikes ha a bigger flywheel weight installed. USA and Australian bikes had the lighter flywheel which helped. Our were also advanced about 4mm from the timing mark, pretty sure UK delivered bikes were set directly on the timing mark. Ohlins rear shock was the other thing - way better than that standard SACHS
  2. Your friction spring (MT280226006) is in the wrong position. It is facing towards that little nick on the gasket mating surface, (about 10 o'clock in your photo) but it should be facing towards the engine dowel (12 o'clock in your photo). it fits in an indent in the clutch case, and must be in that position on re-assembly. Rotate it on the shaft so it lines up with the dowel before putting the clutch case back on.
  3. The clear tanks were made to fit Gas Gas bikes with the coil mounted on the left side frame rail. For the last few years the coil is now mounted between the frame rails under the tank, hence why the clear tanks need to be modified to fit those later bikes. For a direct bolt up on later models get a GG CONTACT tank. Part number BT76001CT-CFW-1
  4. Pretty common on those early 2002 bikes for that rubber tube to "shrink" a bit over time. Gets stiff and smaller! Gas Gas used a new part in 2003 Hence the BT280"3" 28017 part number Either fit a new airbox rubber tube # BT280328017, or like you said get something to extend the original.
  5. It's also designed as a sacrificial part to some degree. As the middle box is a lot more expensive if damaged. It definitely doesn't hold up for extended periods when used as a seat! But that was not in the design brief either I would imagine. I have seen a few bikes with a small piece of ally flat bar pop rivetted across the top so you can do the obligatory sit down wheelies if that's your thing. There is an aluminium option (Google Gas Gas BDI End Cap or similar and you should find it), and also 2M make a very nice carbon end cap that also looks amazing, is really well made and a good fit. Quite a few options.
  6. The CONTACT is a fantastic buy. You may have lower spec suspension (rear shock and front forks) than the RACING, but the CONTACTS set are more than adequate for your size and ability. The only big difference from the RACING in regards the motor is it runs the Dellorto PHBL 26 carb, and not the Keihin PWK, but the Dellorto is a great carby for the job. The frame is exactly the same. It has the older style Morad rims, not the new flanged style rims, and runs the Pirelli tyres. It is a very good package for the price. I would buy the CONTACT and chuck a set of IRC tyres on it and you will be set for anything.
  7. arnoux

    Gas gas 280

    A couple of years ago Morad changed the thread diameter on the front spokes to a finer pitch. (but same diameter) The original part number is BT27718001 which is the 3mm coarse pitch original type The new ones with the fine pitch are BT27718001/2 Both are still available as far as I know from Gas Gas Spain and other suppliers.
  8. Not all the parts manuals (like that one) are listed on the Gas Gas Spain website. You need to speak to a Gas Gas Importer to access some specific information sometimes. A Gas Gas Dealer is your best bet for ordering - as those are the GasGas part numbers on that file not the Marzocchi numbers. You now have the GG part numbers, if the dealer doesn't have the stock he at least has the part numbers to order them from the GG Spare Parts dept in your country or GG Spain.
  9. I think you are slightly wrong there Tom250. Here is a file with the Gas Gas part numbers for the fork internals. Marzochhi forks Parts.pdf
  10. I have been told that the chargers for the SLA batteries stop charging when the first battery in the battery pack reaches peak volts. Hence battery #1 could be at 13 volts, but batteries #2 and #3 could be at say 12.8 and #4 could be down at 12.1! This variation gets greater over time and hence the shorter run times. In the OSET tech video on the suject they recommend periodically to pull the batteries from the bike and charge each one individually on a 12volt charger to get them all up to pak volts and you are back in business.
  11. arnoux

    2017 Txt Gp

    Gas Gas for a long time have had 3 variants of their trials bike each year: The base model - which was called the Pro for many years, but is now the CONTACT. The RACING - which was a step up in fit out, and performance parts. and then their premium model - which was called the RAGA REPLICA, then the FACTORY, and now the GP. So nothing has changed there, just the "name" of their premium model. BUT Gas Gas has finally listened to all the importers and dealers about the release dates. It was crazy that the RAGA, or REPLICA models were built in May, June each year. if a customer, say for instance, bought a 2010 RAGA when it was released in JUNE 2010 by Jan 2011 (only 6 months later) it already had a old model year number on a bike that was barely six months old. A lot of importers have been pushing for years to change this. This release time of November is perfect for the premium model. It means bikes will be available early in the model year, and this confusion will not happen with almost new, but "seemingly" year old bikes out there. And the fact that their is not a lot of change on the GP model can be seen as more of a position of where GasGas had to go with the RACING this year. I feel this was two pronged: GasGas wanted to release a good bike after the Torrot rebirth. They got the CONTACT right as a good entry level bike, actually "down speccing" it from the previous Pro model, but making the price way better, and really very very capable as a base model trialsy. The RACING was really the flagship for the new company launch, so without the availability of Marzochhi front ends they sort of had to go with TECH front forks, and the 2 way Reiger was an obvious choice for a rear shock (carrying on from previous RACING models). The Keihin PWK carby was a perfect choice as the Dellorto was on the base model, and it was a proven performance advantage. I feel they got the RACING just right for the relaunch of the new GasGas, and it was a bike that everyone expected from the Girona company. It makes tried financial sense to release a "new" model variant mid way between the release of the 2016/17 RACING and the next model year release of the 2018. So OK now they still need to do the "premium" package - now to be called the "GP". So what can they do: Well like previous years put on a more up specced rear shock (I presume this will be the 3 way Reiger or similar). Same at the front end - I would suggest this will be the next step up TECH forks with the compression adjusters separate from the rebound adjusters. And in keeping with the Carbon / composite work Torrot are involved in they have a full carbon airbox on this bike. Then looking at the photos it seems like they have done a bunch of small stuff like the S3 HardRock Aluminium pegs, red silicone radiator hoses, red fork brace, Full FIM rear brake disc, Rental handlebars and grips, and probably a bunch of other small things you can't tell from the photo - and of course the white frame and different graphics. For year now the premium model has always had a different colour frame from the signature red of the regular models (PRO, CONTACT and RACING). I think that GasGas has listened to their importers and Dealers this year and finally got the release times just right, - it's taken years of whining, but I think the Torrot group are actually listening and taking on board the concerns of their team. That's my take on it anyway! (and I've been to a few of those Importer / Dealer meetings)! And finally as for dealers /importers being privvy to upcoming model changes, they just don't hand out that information any more, as most companies don't want some regional importer/dealer "spilling the beans" and telling everyone about the fab new special release on their Facebook site before the parent company get a chance to "hold court' at the new model release. The cards are played much closer to the chest now in this world of instant news and social media leaks. Lets see what shows up at the EICMA show in Milan this week.
  12. That is really confusing Sectionone. In 2014 I had physically been to the factory in Spain (not the Gas Gas Factory) where the frames for GG TXT Trials models are made. Seen them all being welded up at the different welding stations etc etc. it is the same company that build the GG final exhausts and also made the Jotagas frames. They may make other stuff for Gasser, but the trials frames were definitely being made in Spain - saw it in person.
  13. arnoux

    Shock Bearings

    Smaller bearing is on the Reiger with the large reservoir part of the body at the top. The new Reigers with the large section at the bottom have the bigger spherical bearing, if that makes sense.
  14. It is much more prevalent on the new Gassers with the integrated XiU regulator/rectifier. Nothing to worry about.
  15. That is correct, that gap is there stock.
  16. Hi Joe The part number you want is BT27820010 Fuel Cap for 98 Gas Gas. if you Google that you will find a supplier.
  17. The 99 guards are definitely available. I know Jim has some,and we have them, so I am sure we are not the only two with stock. Check your local Gasser dealer / importer.
  18. Jaycar http://www.jaycar.com.au/Parts%20and%20postage%20total%20$112.19/p/SK0995
  19. Take the stator off. it will give you heaps more room to get at the key - and less chance of damaging the stator as well.
  20. Agree with Peter B This is common on the odd bike with a magneto. (not common but i have seen it on varied bikes over time in our workshop). When you look at them closely it is almost like a SPOT WELD. Anecdotally I have found it is usually on the bikes where the tapered surfaces (crank to flywheel) are not a great match. The marks on the flywheel always correspond with the one on the crank - like there has been current flow across a small gap. Hence the look of a spot weld! Not sure if that is correct, but that is what it appears to look like without any other evidence.
  21. If you have some detonation under load, then it is lean and you should be going richer. To make it richer Lift the needle not drop it. (or conversely drop the needle circlip). Some of those early small pressure relief valves were troublesome and could "jam". New ones are better. Your after part# BT701553013.
 
×
  • Create New...