Vesrah, Athena or Viton valve guide seals you get in the full gasket sets. Do not waste your money and time on any of these, use genuine Kawasaki seals every time. I am not going to use any of these in the cylinder heads I do, I will only be using Kawasaki seals it's not worth the hassle. There is ...

Vesrah source their seals and gaskets from the OEM manufacturers in Japan. :wink: Hey Charlie, I hear ya mate !!! Your right too... as I have a complete new set of Vesrah Kawa 900 valves in stock & I know 100% for an absolute--- take it to bank truth !... that both the OEM valves that were and ...

Wrigers wrote:I going with Paul on this one. After all my cockin about with my issues with faulty seals, I'm sticking with OEM in future.

Thanks for the input Bud, I followed your thread & hoped you got it all sorted. I hope your wow's are now distant history & your now clocking up the miles !

Hi Lee,hows it going? Only ever used Viton or Gen oem Kawasaki seals meself,all the ones out of gasket sets i used in the past failed in very short order,pain in the arse when all the other work is good..Cheers Mate Paul J. Hi Paul, nice to hear from you. I'm good mate & you ? Thanks for input ...

Hi guy's , I'm just putting this out there to see who else is suffering from Zed OCD like me ? if so - what are your experience based findings and opinions on this curly conundrum . Started assembling a Head I've been working on & I have brand new sets of ( green in colour ) Athena valve seals &...

Hi ..... I have been out for my first ride on the Z1b ,This is the problem Bike starts easily warms up well runs well that is till you reach about 4000rpm in all gears then it breaks down starts to sputter and will not rev thru that range in fact will only slow down & dies off as it gets too mu...

Does anyone have a dimensioned drawing of the std piston liner? I need to get a new set and LA Liners are expensive so need to send Westwood a drawing to get a quote. Cheerd Mike Hi Mike .What about just buying another set of S/H std liners = very easy to swap them over... 30mins @ 125 c in the ove...

Just measured some standard J piston rings on an existing (worn) piston. 69.4 mm (these particular ones at 1.00mm oversize) Top ring (very worn) 1.00mm dead but quite loose fitting Middle ring 1.2mm Bottom oil control assembly 2.35mm measured outside to outside of hard rings. You'll be aware of the...

z1bman wrote:i am certain z1000j rings are 1.2mm standard

Thanks very much for that sound info. All the best.

Bit of a curly one here ... I'm assembling what to me was and is an unknown basket case motor this is going to be just a spare 900 engine it was running a Yoshi 998cc kit = 69.4mm pistons which all appear to be in good shape . I'm considering re-ringing it....although there appears to be no real nee...

rickm wrote:Why is fully synthetic oil a waste of money?
If you don't get clutch slip then why not use the very best oil protection you can get?
I have fully synth in my J, have heavy duty springs so get no clutch slip, and know my engine has the best possible protection I can give it.

PLUS 1 on the above.

This is a Curly one aye ! Just too many options to wildly prod at here ! Personally for what it's worth I think you need to try & narrow it down i.e. " Electric's -Ignition " -Fueling- Compression ? If it was me I'd first run a Hot compression test &... if thats OK : 125 psi or mo...

This is a Curly one aye ! Just too many options to wildly prod at here ! Personally for what it's worth I think you need to try & narrow it down i.e. " Electric's -Ignition " -Fueling- Compression ? If it was me I'd first run a Hot compression test &... if thats OK : 125 psi or mor...

Think you have the white wires wrong, you should have the white feed from the battery with the double joint, into that goes white/red wire from the fuse box, and the white wire from behind the solonoid into the double joint, the other goes to the white feed wire from the reg / rec, that's how mine ...

TOO RICH ! best check first..... Ignition Timing is correct - Air Screw tips in good shape = undamaged - Air Filter clean - Float bowl / Fuel heights set correctly - B8ES plugs in good nick & gapped at 28 thou- Choke plunger units & seals etc all in good shape - If yes to all- set the air sc...