New owner of MP250cc scooter By deaf250scooter (Read 193 times)

[deaf250scooter]

Hi to all,

   I just bought MP250a scooter from my son (Bought it for $50  ) because he didn't use much and failed to keep tag updated. He don't want to deal with tax owed over 2 years so I took over and paid my tax and insurance. pretty cheap. Tho I own 2002 Suzuki Volusia VL800, I decided that scooter would be my backup due to my motorcycle engine issue. I fixed the scooter idling issue, I replaced spark coil and sparkplug.  Cleaned carburetor and bypassed carburetor vacuum tube (used to connect to Emission Control system that had been ripped out by my friend of former owner before my son bought it from him).  It ran smoothly and responsive. It used to go 73mph when my friend first bought it, now 3k miles later and 3 Owners later, It now go up to 62mph maximum. I was trying to figure out why it no longer reach 70mph. Carburetor been cleaned, fuel pump was replaced, spark coil replaced, fuel filter replaced and Cone air filter installed (one from Ebay). Valves had been adjusted as well (.04 for intake and .08 for exhaust). I just wonder if the belt worn out that may have worn to the point that it no longer go on top of variator.  But going 60mph is good enough for me to ride to work 25 miles away. 

   Should I just service/lubricate variator?  Let me know

Thanks
Deaf250scooter

[kz1000st]

I would change the belt just to be sure while you're servicing the final drive. Also a better source for your questions is www.modernvespa.com

They know Piaggios inside and out.

[deaf250scooter]

Thanks for info.

Yes, for a week when I started to use scooter, I did reached 70mph down the hill without engine cutting (it's engine RPM limiter built in CDI and I throttled down a bit and leaned my head low ), averaging 64mph on flat highway. Now it runs normal and in back of my mind, it's the varator belt. I know how varator works and belt is bit worn which is why it's not reaching 70mph (on website for MP250A sale (new one) and it listed that it can reach 68mph average). Two of my sons decided to ride it and they enjoyed it. My young son who sold me his scooter, he said it runs alot better than he had it.. I told him it's a spark coil going bad and I replaced it.

I will have to service the final drive, lubricate and check the belt wears. Is it normal for belt to vibrate on certain speed because when I rode 40 to 50mph, I can feel "rolling" vibration patterns.

Bottom line is that I'm satisfied with scooter's performance. I know it have its limitation like I used to ride 50cc moped back in 80's (rode my brother's 79' Batavus Regency HS. I was able to go up to 40mph with throttle tweak )