Honda-SOHC

I've completed a nut and bolt rebuild of my 1972 Honda CB500K1, it starts ok but wont rev past about 4500 revs, I've narrowed it down to fuel stavation. During the rebuild all the carbs were ultrasonically cleaned and vapour blasted, then fitted with brand new carb sets with the correct sized jets for the standard air filter. I took off the tank to drain it becuse I thought there may be a problem with the petrol tap which is also new. Petrol started to drain from the fuel pipes then started to slow until it finally stopped all together. I open the fuel cap and it started running again then stopped every time I closed the tap. The petrol cap was again new, I compaired it with the original and noticed the original has a blank rivet which holds the rubber seal in place, the new cap has a phillips screw which can alter the hight of the seal holder. I was wondering if anyone else has come across this before, and if you have do you screw the screw in to let in more air or do you screw it out. cheers alan 

anyone out there know what the primary chain length is for a 1973 honda cb500k1, mine seems to have had a go at the crank cases so it must be flapping about a bit! bit I can't find the wear limit length in any of the service manuals. If anyone had an original genuine honda work shop manual it may tell you in there.
cheers alan

does anyone know where I can get the strip that runs around the tank on the 1973 honda cb 500 k1. My tanks shot and I have seen loads of decent ones on ebay but non have the trim that runs around the flange of the tank. I've tried the usual suspects david siver spares etc but they are now an obsolet part.
cheers alan

Hi,
just uncovered some old CB500/550 parts in my garage.

For sale to members first, then I'll put them on ebay.

https://goo.gl/photos/A3dDmWJgZk3RYpVf8


Cheers

Skoti

hi skoti interested in the clocks can you contact me at alanevans010@btinternet.com with a phone number and a price cheers Alan