September 11, 2025Sep 11 Hello, I have a gas gas 321 txt and unsure of the year, either a 98 or 99? Im wanting to do an oil change however can’t seem to find a fill port? Iv seen the drain plug underneath in the bash plate hole, however can’t seem to find a fill port? Looking on forums eveyone seems to say it’s behind the kick start with an Allen key nut however mine does not seem to have that?? picture below for guidence, any help would be appreciated. cheers Edited September 11, 2025Sep 11 by Joe1998 Spelling mistakes
September 11, 2025Sep 11 This video will show you where the oil filler port is. You have the “older” clutch cover described in the video. At least, I hope it will. https://youtu.be/SKPCCsKOgr4?si=zsZasnYuUxNHTCfD Edited September 11, 2025Sep 11 by RonH
September 12, 2025Sep 12 On 5/23/2005 at 8:59 AM, ba baraccus said: 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)
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