You will need to make sure that every single item you attach to the shell looks equally good though. Its a slippery slope/Finally, having been sent to the US in March, my carbs turned up from Z Therapy. A work of art.
Very clean. That pipe from the crankcase to the balance bar - how does that affect the running? I can see you may have some valve in there but surely the engine is just going to suck air from the crankcase. Isn't that like an air leak? The standard set-up is for gases to be drawn into the air filter and through the carbs. Servo operation?Rob, when I was looking into the ztherapy reconditioning of carbs I looked around on the Internet for places in the UK that do carb reconditioning, and asked for quotes to refurbish both Hitachi’s and SU’s.
Every single one told me they wouldn’t do Hitachi’s because of availability of parts.
For SU’s, I think I worked out the total cost to do a similar job to what ztherapy do would be £400 - £500 (including buying a set of used SU’s).
All of them also told me they had a long waiting list, but that’s also because they did refurbs for quite a few different carb manufacturers.
Ztherapy have got the monopoly on restoring Hitachi’s, but whilst it seems lucrative I wonder how many jobs they actually get a year...
In the end I bought a pair of already reconditioned HS6’s and cleaned up the manifolds/ balance bar myself:
View attachment 34870
That’s the best picture I’ve got unfortunately (build still in progress)!
Rob, when I was looking into the ztherapy reconditioning of carbs I looked around on the Internet for places in the UK that do carb reconditioning, and asked for quotes to refurbish both Hitachi’s and SU’s.
In the end I bought a pair of already reconditioned HS6’s and cleaned up the manifolds/ balance bar myself:
Very clean. That pipe from the crankcase to the balance bar - how does that affect the running? I can see you may have some valve in there but surely the engine is just going to suck air from the crankcase. Isn't that like an air leak? The standard set-up is for gases to be drawn into the air filter and through the carbs. Servo operation?
Rob, that set up is normal, its the rocker cover breather that vents into the back of the air filter housing, if fitted.
Which brake drums did you get Gary? I think I need some too.I fitted some new drums on the rear last night and adjusted the shoes up and also changed the mains jets down a size from 175 to 170 coz it was a bit rich at WOP
Which brake drums did you get Gary? I think I need some too.
Was it consistently rich through the rpm range at Wot?
So it is. How does that work then - it's like having a hole in the inlet manifold?