May 21, 200521 yr hi can somene tell me how to change the engine and gear box oil just had a look and i aint got a clue and will atf be ok ?????????? cheers in advance for any advice
May 21, 200521 yr Engine and gearbox is the same on a Pro. Warm the bike up a little. not till the fan comes on but enough to get the oil warm. Take the filler plug out. Loosen the drain plug, then stick a container underneath before you take the plug out completely. Let all the oil drain out. Clean the sludge from the drain plug magnet. Once the oil has stopped dripping stick the drain plug back in. Fill with 400 ml Dextron III ATF (Dextron II is OK but III is better). Put the filler cap back on. Warm the bike up. Check for any leaks and that you can see nice clean oil in the 'window' Ride till it gets dark.
May 22, 200521 yr Is this for any Gas Gas? Will You have to take the Bash plate off is that were the plug is underneath? Or could you maybe be a bit more specific my bike is a 98 Tx if this helps and its due for an oil change but ive never done it.
May 23, 200521 yr Just a quick addition to Subira's list, When you warm it take it for a quick spin only for a min because just warming it up on tick over doesn't do a great deal. And once atsrted and upright the oil should be just above half way in the window!
May 23, 200521 yr Lew GasGas There is a hole in the bash plate below the drain plug. There is no need to remove the plate. jenkinsm If you put 400ml in as suggested by Subira the level will be above the window. I think 350ml takes it up to the middle. I questioned this when I got my pro as filling as per the Gas Gas instruction brings it well above the window.
May 23, 200521 yr The window is on the side of the clutch cover on the pro's and on the txt's it is just behind the rear brake pedal, but its alot smaller of a window than on the pro's, too be honest it's pretty crap on the txt model.
May 23, 200521 yr Lew gas gas I think they are talking about the pro when they mention the window! Yours will have one too but its in a different place. Plus yours holds more oil I think about 750ml (or cc). No you dont have to take the bash plate off as there is a hole like bigfoot said. Just use an allen key to undo the bung through the hole and let the oil drain, then refit bung (dont over tighten tho). The filler bung is just behind your kickstart (also allen key), take this out and fill up with fresh oil. I use Putoline GP10 but as said ATF is ok too. Use a measuring jug so you know how much oil you are you putting in! A: shows you where the filler bung is (its actually just behind the kicker). B: shows where your window is. (I think this will be the same as your bike)
May 23, 200521 yr Personally, I run 550ml of 10w30 oil. Gear change is a lot smoother. Remember on the pro that the oil lubes the main bearings as well! Lew, on a 98 TXT you should use 10w30 oil and I think its either 650 or 750 ml
May 23, 200521 yr Cheers that really helps a lot , ill see how it goes and let you know. You say i should use 10w30 oil then Is that the name of the oil or the type?
May 23, 200521 yr In a pro gearbox, it is ok to use 4T oil! but in a TXT, you just need a 2T Light Transmition oil. Generally use MOTUL or Silkolene LITE Gear its called, or yeah, Putoline.
May 24, 200521 yr Personally, I run 550ml of 10w30 oil. Gear change is a lot smoother. If you run it at that you risk blowing the crank seals!! Bet there is oil in the crankcase breather pipe. Bigfoot, 400 brings it above half on mine once started and leant upright.
May 24, 200521 yr If you run it at that you risk blowing the crank seals!! Bet there is oil in the crankcase breather pipe.Bigfoot, 400 brings it above half on mine once started and leant upright. No, always ran them on that. they've been spot on! Do whatever
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