OzVMX Forum

Clubroom => Tech Talk => Topic started by: mosderek on April 12, 2014, 03:02:52 pm

Title: Kx400 owners help! Need some suggestions!
Post by: mosderek on April 12, 2014, 03:02:52 pm

So I just acquired a kx400(finally!!!!!!) anyway anyone know of any quick or "must have" mods for these bikes? I have works shocks in rear. Probably going to get some race thech or works springs too. I found one after market pipe builder but he's asking around 500 for his pipes. Any other sources I could use? Wouldn't mind buying used. Thanks

Title: Re: Kx400 owners help! Need some suggestions!
Post by: William Doe on April 12, 2014, 04:00:36 pm

 Some gold valves in the forks will make for a better ride , what's wrong with the original pipe ?

Title: Re: Kx400 owners help! Need some suggestions!
Post by: bigk on April 12, 2014, 04:06:15 pm

I have a cylinder & head with fresh .020 bore & NOS piston kit if you need spares.
K

Title: Re: Kx400 owners help! Need some suggestions!
Post by: euro bikes on April 13, 2014, 05:38:35 pm

Suspension is the main problem with them ,I have one ,forks flex and back shocks need laying forward like the other bikes of that era to make them work but then the pipe is squashed by more travel so then you need a up pipe. Mine is for sale if you want another one to play with. 

Title: Re: Kx400 owners help! Need some suggestions!
Post by: Slakewell on April 13, 2014, 07:23:17 pm

Its not hard to find 77 YZ forks on ebay which were class leaders back then. Find a swing arm that fits but either way you will need some frame mods.

Title: Re: Kx400 owners help! Need some suggestions!
Post by: euro bikes on April 14, 2014, 03:06:52 pm

I have XT500 forks on mine but you have to modify the triples plus they are not offset forks standard, the top clamp has a lip on it so you can't slide the fork through. I always thought the motor in another frame that handled would be the way to go.