New to forum (but not to thrashing the tits off vespas). I’m running a 210 with a T5 carb, 130 main, Be4, 185 air corrector, modified P2 pilot jet, fully retarded timing, de-restricted Scorpion pipe. Bike goes well (although a little more torque would be nice), it reaches a good turn of speed in 4th, but on occassions will begin to pink when flat out, and when I come off the throttle it starts to pink like buggery!
Not sure as to the exact specification of cylinder head as I bought the scoot with the kit already fitted and have been tweaking the engine since then, but the head appears to have been properly profiled for the 210 kit, it also has a short reach plug which was a bit of a surprise (never seen a p2 head with a short reach plug before, can anyone enlighten me on this?) and the usual 210 head gasket is present and correct. B9HS plug fitted.
I’ve read that stainless pipes tend to retain the heat more, would the pinking be because of this? If so would I be better off with an RZ left hand non-stainless or SIP Evo (don’t want a PM, had pinking problems with these before, but do want pipe with more torque than Scorpion), or is the problem more likely to be down to jetting?
Also, I have a 60mm crank in another engine which is unused at the moment so I’m thinking of swapping it into the 210 engine (running standard crank at the moment). Does anyone have any experience of using the Mazz 60mm crank with a Mallossi 210 and will this give me the torque I’m craving? Also what would be the best pipe for 210 kit and 60mm set-up?
Questions questions questions!! Hope some of the legends on here can help.