The regulator on my 1974 Vespa Primavera 125 is not functioning. Scooterworks does not have the same kind of regulator (5 plugs for use with a battery). Where...
Totally agree; Max was really helpful in giving me advice for my first smallframe project (Malossi 136), and even helped arrange to deliver the parts to my mom...
I am getting close to finalizing my smallie project. Engine is 99% together, but as of yet, I have not fit it to the bike. I am running a VSP2 pipe, so I...
I cut mine down and didn't reinforce it at all. The rear portion of the frame is not load bearing at all, and the european models don't have anything there....
I'm all excited to finally carry a spare and dress up my scoot with this rack. I get it on and not even a mile down the two hook thingies and bottom bracket...
Hi. Newbie here. I have just bought a 1990 PK50 for my lad. Haven't picked it up yet but it looks in pretty sound nick and everything works. I am a little...
You will have to strip the engine and replace the primary gears. After that there are several bolt on kits for the short stroke engine which will liven things...
NO NO NO.  DR 110ccm kit for PK50s plus a 19/19 carb. (that gets you 45mph+)  Actually I have a barely used DR 75cc kit I will sell you for $60. (thats...
Since I put a hole in the piston of my Stella @ High Rollers I'm finally turning attention to the smallie I picked up a year or so ago. It's a 1970s 50 that...
with a135cc kit and 24/25mm carb and the right primary gearing 60-65+. It wouldn't surprise me if it already has a 135cc kit on it, so you could get a little...
Top speed depends on the grade of the road and wind speed and direction. Ideal conditions would be free fall in the downdraft of the central cooling shaft of...
If you don't change the primaries you will just get to slow, quickly. 45 mph is 8000 rpm with PK50XL primary gears. It's 8500 rpm with standard 50 gearing. You...
also, if you don't change primaries on a decently kitted bike, the clutch will slip unless you beef up the springs. but john's right - i had a 50s kitted with...
Yes, but a 50cc stock barrel does not have the HP to get it to 8000 RPMs with a person actually riding it, thus the reason a PK50 does not go 45MPH. You're...
Does it get cold in New Zealand off the glacier part? Parkas can be very practical, you know. Myself, I consider myself more a flapper than a mod, if I must...
Change the primary and remember that it's a hobby. I've put about US$5,000 into my P200 and get 75mph and 35mpg when it runs. Call me unskilled. I am. I spent...
no real mod scene here in NZ, at least that i've seen. down south yeah it can get pretty chilly, but most people layer up with a textile or snowboarding...
Thanks to all so far, very helpful, especially that gearing calculator on scooterhelp. I had thought of putting a larger cylinder kit on and changing the...
replace/modify both intake and exhaust headers and both acceleration/ torque and top speed will improve a bit. main jet in the carb will probably need to be...
since this discussion is not in reality, I mean seriously, increasing main jet or changing intake/exhaust - these are serious questions/possibilities? Â Why...
yes. gregnashuk is looking for any easy increase in performance that'll make it safer for his son to ride in traffic, while still keeping him legal for his...
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