Low compression on XTZ750

[Sgt Bilco]

Just bought a dog (thanks fleabay) of an XTZ750 and it doesn`t run too well. Rest of it is OK though

Apparently, there is no compression in one of the cylinders. Can`t really afford to let the local garage loose on it so is it a big job to do and what is a likely cause?

I`m reasonably happy to rip the heads off and have a look as long as I have an idea what I`m looking for.

Any help appreciated.

 

[cookie]

it's either rings/bores or valves.

measure compression as normal. then squirt a bit oil down the plughole. retest. if reading is higher, it's the bores sealing better, if same, it's valves.

 

[Vern]

Get it up here and disect it good and proper,then I'll give you a fiver fo it

 

[Sgt Bilco]

Get it up here and disect it good and proper,then I'll give you a fiver fo it

Cnut

I may just do that and at least thats double what someone else offered

 

[Timpo]

My money is on the rings being shot, so rebore and two pistons will see it right...... or a cheap 850 lump.....

T.

 

[vilguy]

How many miles is on it?

 

[todd5774]

Take a trip over to www.xtz750.com plenty of very knowledgeable peps over there.