1971 GP125

[youngjohn]

Thought you might like to see my 1971 GP125. It's got a quite interesting history. Bought from Eddy Grimstead in 1971, used until 1974 and then stuck in the back of a dry garage until 1999. It was then cosmetically restored by a scooter dealer who used it as a display piece for another 12 years.

I bought it in 2011 and it had just 8000 miles on the clock. Since then I have (slowly) been sorting it out mechanically whilst trying to keep it looking fairly standard. It now has:

Casa 185 kit
Polini CP23 carb
BGM crank
MB Clubman exhaust
Electronic ignition with Chiselspeed M-Tech advance/retard
AF tubeless alloy wheels
19/46 gearing
Pro Tec shock

It now produces a heady 10.64bhp with a stump pulling 11.59ft/lbs of torque!

Apart from the above, the scooter is almost all as Innocenti made it. The nice thing is that the paint (being 15 years old) has a bit of patina and doesn't look freshly sprayed which suits the look perfectly.

[Toddy]

What a lovely looking scooter and you know the history as well bonus , great job well done

[coaster]

What a lovely looking scooter and you know the history as well bonus , great job well done

Have to agree, cracking looking scooter

[Andy-DL]

That's a lovely looking scooter - however some bugger has undone your HT, and pinched your spark plug!!

[youngjohn]

Just paranoid about checking mixture - the plug spends more time out than in!

[youngjohn]

Thanks for the comments. It wasn't exactly a tough job, but I'm pretty pleased with the way it's worked out. When I got it, it looked nice but was struggling to get to 50. Now it runs great at 55-65 which is just right for the roads round here.

[Mr G in NYC]

Hell Yeah !! Like that Get some front dampeners on it and it should ride tighter G.

[Rich Oswald]

Superb scooter,

Rich'

[trev t]

very tasty... well done...

[collector1967]

Bloody nice, well done.

[Adam_Winstone]

Very nice.

[peejay]

like that, nice

[Paul Slack]

beautiful

[Kirk St Moritz]

Love it!

[HxPaul]

How do you find the polini cp23 carb ? My brother had one on a siver special with 175 top end and he removed it because he could only get about 25 to 30 mpg from it.

[johnspeed22/2]

very nice gp that is love white gps

[youngjohn]

How do you find the polini cp23 carb ? My brother had one on a siver special with 175 top end and he removed it because he could only get about 25 to 30 mpg from it.

I haven't had chance to check out the fuel consumption properly as yet. From memory I think it did about 50 miles on 2/3rds of a tank so that's about 45mpg.
Starts and runs pretty well though and the carb really is tiny so you'd never know it was different unless you really looked.
I wanted to keep the airbox so it limited my choices.

I'll do a proper check soon and post the result.

[garynonnah]

nice one fella.....just started my project after 30yrs....not having one, so got my self bombay gp150.
total strip in paint at moment....got a new sil200 eng....thats totally stripped, changing all bearing/seals
new mek crank....hopefully be ready for next year.

[youngjohn]

nice one fella.....just started my project after 30yrs....not having one, so got my self bombay gp150.
total strip in paint at moment....got a new sil200 eng....thats totally stripped, changing all bearing/seals
new mek crank....hopefully be ready for next year.

Thanks and I hope your rebuild goes well. As I said, I only had to finish this one off so it was pretty easy but I am currently eyeing up a Series 2 for restoration so may well be up to my neck in bits soon!

[neil64]

thats a really nice scoot , interesting carb though, any idea what jetting spec it is.