Shed find

[vespasco]

I think ive found the perfect solution to the problem i dont really have! Hahahz!

I cant believe it...
Again, at work yesterday........i was working inside a customers shed....and what was in this shed??!!??
Covered in dust and cobwebs was an old P200!!! (Shame it werent an ol ACMA)!
But still! Holy moly! I cant believe my luck!
5500 original miles on the clock
All the owner could remember was it has a kit and a flowed crank. And its a P200 reg'd as 125.
Thats all i had to go on, except i noticed it has indicators, no autolube, hoping it wasnt reed valve.
I couldnt get at it to have a closer look.
Made an offer. (Less than my other recent purchase) and picked it up this afternoon!

Im very happy, as ive been pulling it to pieces (its definitely a non runner btw, thats why a full strip.... I soon found out, the clutch seal was put in back to front)!

Heres what ive found....
It has a 30mm PBHB dellorto
Old style ali Pinasco 213cc kit with single ring piston - which is very interesting!!!!

I thought id see how it was set up before tearing it to pieces
Edit..Crank timings - 124°/4°


Ive measured everything
57mm crank.
1.7mm Deck Height 

and worked out if i use this cylinder in my Rally, with my later Asso piston and a 0.5mm base packer, 60mm crank, 0.5mm DH i would get....
123.6° trans (37.3mm)
169.81° Exhaust (48mm)
23.1° BD
Im happy with that, its close enough not to tinker with !
And with the virtually new P200 with no autolube cases they're a perfect swap for my battered pair in my Rally

With this new cylinder, CR with a 31.5cc head, which i already have , ready to go, lapped and tapped, with the cht tapped into the head*, so ratios would be 10..35CR, 6.74CCR. Im happy with that too!

*(this time with the 4.28mm thread Cht sensor - i tapped a 4mm hole, (which is too small), then started off with a 5mm tap with the correct/ same thead pitch as the sip/Koso sensor, then i got an already broken koso sensor and used that as a tap to continue tapping the hole. Perfect! Almost! Good enough!
The sensor is tight enough and hopefully can still be unscrewed too! (My other one was tapped to M5 and is stuck in with loctite)

Exhaust is a right hander, i forgot to look closely tbh and put it aside,,looks like a Polini type
Flowed 57mm crank 124°/20°... Ill need to check that figure again!

Edit  yes  wrong! It should read 124°/4°
7 spring clutch
Original flywheel but also came with an another lighter old skool Pinasco flywheel
Came with the original si24 and carb box too
And also the original cylinder and piston head too

I also noticed, that this has the rounded gear selector pawl/batwing, so i was expecting/hoping to see a late style gearbox inside, but alas, no, when i saw the hub nut, it was the old style castle nut. Which i had to drill a hole through it to get it off! This means it has the early type gearbox. But i guess an '82/83 reg is too early?

Here it is, 80s style:





Ive already got a plan..the Rally is getting new cases, a new-ish/slightly different cylinder with better transfer timing and possibly another crank...otherwise, the same as it is now and ride the hell out of it.

Im going to fit a 125 engine to the other PX i have as its a 125 chassis anyway (the one with the malossi and pm evo) ride it and sell it.

and then put the malossi with phbh carb, pm evo, in the p200, ride it and sell it

And ride my Rally some more

This should just about leave me with a spare pinasco engine!!! Sell! Sell! Sell!!

Ive a busy weekend ahead!!

I hope to dyno my new engine this weekend if i get the chance.

Busy Bunny


Question... This cylinder has been using the 1 x ring piston....
If i put in a newer style pinasco piston, with Dyke's ring, along with a long stroker, do you think it would cause a problem with the rings when the piston reaches TDC.
(Theres not many miles on the kit as yet).
The later piston lines up with the ports in the older cylinder, just as bad as they do in the newer cylinder! 

Any thoughts?

[henri]

1st thought , youve got it bad ,a serious p series addiction ,
when you hone the bore to de-glaze that should remove any ridge left by old ring/piston ,so a dykes ring should be fine,
2nd thought ,burn that fugely seat please ,it offends on so many levels , H

[vespasco]

Hahaha
Ive certainly not got a P addiction ,, ive never actually liked them tooooo much tbh...but a pinasco kit on a p200 engine!! Thats different! I couldnt resist making an offer. It would have only sat there in his shed for another 20years until it rusted away.

I wont be keeping any of the P ranges ive unwittingly acquired recently.

Its a nikasil lined ali cylinder, so no honing!!

Im a bit gutted ive not got a stock seat but it might look alright on a cosa! Hahahahah

The engine is completely stripped, i just need to clean it all up, port the cases, and reassemble.

[wink]

Hi Vespaasco, why does this not happen to me, I've been after a new mk1 for bit, if your interested in selling the frame etc and keeping the engine please let me know .

[henri]

thanks vespaco for that mental image , only you could come up with a way to make a cosa more fugely than piaggio did , didnt realise/think it would be a nicasil bore ,was being jealous youve bought more scooters than even me recently .as nicasils chrome/nickel basically an harder than the rings that run in it any wear should of been on rings an there shouldnt be a step at top to mess with a dykes ring ,
glad you got it clean ,as in pictures looks like guy had been mowing his lawn with the flywheel , H

[vespasco]

Ill let you know wink. I do plan on selling it. I didnt plan on buying one! I was thinking of putting in a nice, almost new malossi lump with phbh carb and pm evo pipe if youre interested!?
Pm me if you like

I was looking at the cylinder today...it should be fine, like you say the cylinder doesnt really wear

[wink]

Pm sent