Hia all, i have recently bought 2 80's gpz600r 's with the hopes of making one good one out of 2.

the first i bought is a 1989 f reg which was a non runner, the previous owner bought it as a non runner as a project but abandoned it,the engine turns but does not start, it had been dropped on its left hand side. i gave him £200 for it. from what i can see the exhaust studs have sheared, all the fairings are off but complete and undamaged.the exhaust is there but badly scraped


the second one is a 1986 c reg which i bought off ebay for £200 as a non runner mainly as a donor because the exhaust and tyres made it worth its price, this one was a daily commuter at its former home until the engine suffered a problem, the previous owner said the "top end bearing" had gone and he has attemted to repair it but i think he got in a little over his head and he ended up buying a honda (traitor)


i would appreciate any tips and advice you can give me as i would like to get 1 good engine out of the 2 bikes.

i look forward to your replys

 

I'd probably begin by getting the '89 motor running or finding out why it doesn't. No reason to do surgery if you don't have to, even if you have spare parts.
Then, start disassembling and label everything (what part, what bike, etc.) Compare the parts for fit, condition, etc. Choose your frame, sub-frame, suspension bits, and engine components, depending on how the engine issue comes out. "Measure twice, cut once," (compare the desired parts for function and fit) and reassemble.
Sounds like a great project! Keep us posted.

 

will do, i cant wait to get started to be honest, gonna make a start on saturday.

 

get some tools for a good diagnosis! You will always have those tools later, so now is the time to plan ahead. I am liking your project.

 

I am making a start on it tonight after work, i'm going to start stripping the 86. Organize all the parts and label etc, has any one got any good tips on how to get the header pipes off without damaging the studs please. thanks

 

Soak 'em in Kroil or other penetrant lube. May want to heat them if you have a hot heat gun or torch. (Make sure the fuel tank is no-where near!) Use a small stiff bristle brush (tootbrush size, I prefer stainless) to brush off the rust and crud around the nuts and studs first. GENTLY torque on them at first so you can feel if the stud is beginning to shear. Re-heat and Kroil as necessary.