Hi,

I am now getting around to getting my XV750 running.

Usual story, bought as a restoration project last year from someone that said he hadn't spent any time on it but it became obvious he had, but failed to get anywhere.

I have replaced the cracked starter motor and fitted all the suggested upgrades, fitted an almost new standard exhaust to give the mice time to find a new home before I evict them from the still solid original. I have fitted another searter relay, cleaned the carbs and numerous other stuff. It will just about start and chug on one cylinder.

I have now decided to get serious and start doing things properly so I have stripped the carbs and sent them on a holiday to an ultrasonic swimmingpool at a local specialists.

When they return I need some new mixture screws (only really need the tiny O-rings but they come as a unit), drain plug screws (been mullered by a previous owner) and a pair of float chamber gaskets.

The trouble is they are all obsolete because my XV is an 81-83 model with Hitachi carbs.

I can get cheap pattern gaskets but they appear to fall apart when they come into contact with petrol!!!

Does anyone know any specialists, preferably in the UK but if not, USA that may be able to supply parts for early 80's Jap carbs. If I can get this old girl running there is only a few days work to get it to a useable condtion for the tail end of the summer.

Richard

Hi,

I am now getting around to getting my XV750 running.

Usual story, bought as a restoration project last year from someone that said he hadn't spent any time on it but it became obvious he had, but failed to get anywhere.

I have replaced the cracked starter motor and fitted all the suggested upgrades, fitted an almost new standard exhaust to give the mice time to find a new home before I evict them from the still solid original. I have fitted another searter relay, cleaned the carbs and numerous other stuff. It will just about start and chug on one cylinder.

I have now decided to get serious and start doing things properly so I have stripped the carbs and sent them on a holiday to an ultrasonic swimmingpool at a local specialists.

When they return I need some new mixture screws (only really need the tiny O-rings but they come as a unit), drain plug screws (been mullered by a previous owner) and a pair of float chamber gaskets.

The trouble is they are all obsolete because my XV is an 81-83 model with Hitachi carbs.

I can get cheap pattern gaskets but they appear to fall apart when they come into contact with petrol!!!

Does anyone know any specialists, preferably in the UK but if not, USA that may be able to supply parts for early 80's Jap carbs. If I can get this old girl running there is only a few days work to get it to a useable condtion for the tail end of the summer.

Richard

Hi Richard,

back in the day when XV750's & 1000's were new they did suffer from a problem of the cylinder liner moving by about 1mm in its casting ... it gave an odd result ... the problem you describe (sort of running on one) and compression tests did not show any problem .. the fix was a very thin shim fitted under the head gasket. perhaps if some has had the motor to bits and not refitted the shims you may have another problem other than carbs

Thanks Jim, that's a completely new one to me and I will look into it. It doesn't look like the engine has ever been out of the frame but if I'm still having trouble when the carbs are done I'll look in that direction.