SOHC.co.uk Forums > CB500/550

Renovation Time

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z1100r:
 Mine are K3 carbs...loads better to tune due to screw in rather than push in main jets. Years ago i pulled all the primaries out and gave them a good cleaning and then set the carbs up perfect. The bike runs alot better with K3 carbs....in fact its alot better with K3 everything.

 The engine in mine is a K3 550 bored to 601 using Kawasaki 61.5 GPZ305 pistons. It has a camshaft that I had made by Joy cams which if I remember replicates the Yoshimura IOM cam. The clutch was beefed up by myself and the gears were also swapped for much beefier efforts. A mixture between 500 and modified 550 gears. Its a very grunty motor and shocks quite a few. Its the one I built to race in the early eighties. When it raced it had modified 750F2 carbs, still got those aswell. My original 500 motor is sitting on the garage floor looking exactly as it did when I took it out years ago...very shiny. Even when I rode the bike everyday it had another std 550K3 motor mainly because I got fed up with the stock 500 clutch. So my std original 500 motor has done sod all...about 8,000 miles from new.

see this page :- http://www.gareth.evans9.btinternet.co.uk/600gallery.htm


Here are some pics of the general state of it.....I'm ashamed of myself.










Who wants to hear it run...??? hehehehe :D :D ;D

cb500four.wmv

UK Pete:
Great pictures , you certainly have our work cut out if you want to make it shiney, one thing is for sure Florence will certainly be envious, its definetly rougher than his LOL
Pete

deltarider:
What exhaust is that? Sure sounds nice.

matthewmosse:
Hee hee, mines rougher than that! Florence eat your heart out. I'll not be shinyfing mine though, just reviving it for next winter with some mechanical sympathy, cleaned carbs etc.
I'd just ride that as it is appart from a major service to include air cleaner!
My 500/4 has 550k3 engine and carbs as a stopgap til I sort the original 500 motor which has done 160 000 or more miles mostly sidecar tugging.

z1100r:
 Its a modified ordinary Motad. It is more noisy than std but acceptable to both the rider and public on the road. When you're really going for it it sounds sweet, not harsh and noisy, more or less perfect to my ears. Ugly looking thing though. :D

I just noticed those bloody Yamaha rear footpegs rattling. Had to fit those for the last MOT for some reason.

I found my mudguards...thank god..phew..panic over.

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