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New valves are available via Impex https://en.impex-jp.com/catalogs/moto/kawasaki/zx400/zx400-l2-1992-europe-6368/valve-372765.html Cam chain and...
Valves are ****** and needs new timing chain and tensioner
Thanks for confirming that Adrian. I had a bad feeling I was going to have to go down this path. It's a little noisy, so top end sounds like it...
...least but preferably cut along with the seats and then lapped. That means doing clearances too, and then cam chain tensioner, and then... on it...
Speedo clicking is usually a cable that's broken or damaged. Throw a new cable at it. I had starting issues with my ZXR C model, in the end I...
Hi Tony, It’s an SP, freshly built top end. New: rings, reworked head with all new valves, new timing chain, guides, tensioner. COP mod. I have...
Update: It took a while to get the correct valve shims. Got it finished, took it out for a short ride yesterday. Seems to be good, I will keep the...
...Project. We bought this project as a non runner. The cam chain tensioner had collapsed so we opted to buy another engine just incase there has...
Just looking at your #3 spark plug (3rd picture), it might just be the angle of the picture, but it looks like the the outer strap is touching the...
Sorry to hear about your dramas. Any metal in the sump is not good. As Andy mentioned, it looks like an engine out exercise. I am not familiar...
Good work. Based off of your audio, it sounds like you might have leaking exhaust headers. Check the bolts on the exhaust flanges. If that fails,...
For the ZXR the biggest worry is cam chain and tensioner. The chain is tiny even compared to other 250's and the tensioners are not a great...
The OP mentioned fuel supply as a potential issue earlier. Reading back on the posts, the constant 13:1 AFR and 15HP on the dyno lends credence to...
do you have any compression numbers? That’s what I was thinking that I would do. If I need pistons, I haven’t found any.
leak down test to confirm. however given the age of the bike, I'd bed the rings are worn out and valves not sealing. I did new rings, bore...
Yes, 100% B2 SP. Frame= ZX250A-301691 Engine= ZX250AE As per manual: main jet-#1&4=135, #2&3=130 Pilot=35, needle-#1&4=N76A, #2&3=N52X Air screw=...
When I had my C model on a dyno at TAFE, at 7k RPM it was rich, at about 10.5:1 - in fact it was rich all over (standard settings with open...
I just got a continuous chain from Japan. As it has been many years since this was posted has anyone else done this? What is the minimum amount of...
Hi All Working on youngest son's motorbike. Despite having done a number of timing belts on cars I'm a Newb when it comes to timing chains. Bit...
Buy the bits for a GPX250 tensioner individually (housing, springs, bearing, rod, o-ring) from the dealer - they stock the parts. The cam chain...
