GP150
Posted: Mon Oct 06, 2014 11:34 pm
My restored GP150 before and after
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Re: GP150
Posted: Tue Oct 07, 2014 12:02 pm
nice job !
Re: GP150
Posted: Wed Oct 08, 2014 11:37 pm
Tidy, good work fella! 
Re: GP150
Posted: Thu Oct 09, 2014 6:51 am
Looks good, tell us a bit more about it 
What's the other bike in the picture?
What's the other bike in the picture?
Re: GP150
Posted: Thu Oct 09, 2014 1:41 pm
Well done mate looks good
Re: GP150
Posted: Thu Oct 09, 2014 4:40 pm
Now, that is a transformation!
But surely not a standard 150 lump?
But surely not a standard 150 lump?
Re: GP150
Posted: Thu Oct 09, 2014 9:44 pm
The other bike is a 1931 Francis Barnett I have had for 20 years and I still haven't started to restore it.
The engine in the GP is a standard 1969 sx150, I guess its original engine got blown in the past before I got it into the family in around 1996, I did have to extensively repair the chaincase and attendant bits, weld up the fins on the head, fit a new barrel and piston (the old one had loads of bits knocked off) although I have thoughts of overboring it a bit and fitting an oversize piston at some time. All the other bits are what came with the engine. All the bodywork is original but again extensively repaired, I've got a pic of that lot I will post. then got my buddy to retrim the Guiliari seat that is on the bodywork pic
The frame was basically straight but the forks took a lot of straightening as did the back where number plate fits.
The restoration was written up in Jet Set a few issues ago as 'Restory'.
The engine in the GP is a standard 1969 sx150, I guess its original engine got blown in the past before I got it into the family in around 1996, I did have to extensively repair the chaincase and attendant bits, weld up the fins on the head, fit a new barrel and piston (the old one had loads of bits knocked off) although I have thoughts of overboring it a bit and fitting an oversize piston at some time. All the other bits are what came with the engine. All the bodywork is original but again extensively repaired, I've got a pic of that lot I will post. then got my buddy to retrim the Guiliari seat that is on the bodywork pic
The frame was basically straight but the forks took a lot of straightening as did the back where number plate fits.
The restoration was written up in Jet Set a few issues ago as 'Restory'.
Re: GP150
Posted: Tue Nov 04, 2014 8:46 pm
Your comment prompted me to have a look at the 'standard 150 lump'.Scootissimo wrote:Now, that is a transformation!
But surely not a standard 150 lump?
Last week I did a good session or two of porting and fitted big bore exhaust and surprised myself just how much improvement I could make to the engine with a little cash and a decent portion of effort, thanks for the kick.....!
Re: GP150
Posted: Tue Nov 04, 2014 9:32 pm
very nice
Re: GP150
Posted: Thu Nov 06, 2014 12:26 pm
The sort of time scale I'm well familiar with, but I'm just a mere novice, 10 years being my current best offering.sunrisemac wrote:....... I have had for 20 years and I still haven't started to restore it.