Post by evilthx on Apr 26, 2011 16:33:08 GMT -5
A guy I used to work with bought this scooter new online and had it shipped to his house in a crate. He ask me to help him put it together so I did. We filled it with gas and then test rode it, rather I did for him. All was great, a nice peppy little scooter with good brakes. Long story short... he never rode it. He let it sit with a full tank of gas in it for 6 months roughly over the winter and into this spring.
I sold my car and he offered to let me borrow his scooter for a while until I get another ride and to break it in for him so I have been. However, when I first got it from him it would not start. I could crank it and crank it but it would not run. Oh it would act like it wanted to start but never would. Bad gas for sure. I drained the gas... twice and also cleaned the carb as best I could. It runs now but stalls at stop lights. I did the first oil change and filter screen cleaning at 300 kilometers and used full synthetic oil and changed the spark plug to an NGK.
The scooter now has just over 600 kilometers on it and I have modified it just a bit but only to the transmission. I removed the variator and inspected everything under the CVT cover. All looked very well and pretty clean... but hey, it was new. Did some reading and research for a while and decided to de-restrict the scooter. First, the variator... OFF WITH THE SPACER!!! But there was no spacer, washer or other device for keeping the drive faces apart. The only thing was the Bushing/Boss. There was a line on it from where the drive face wouldn't pass so I milled it down to the line... it was too much so I made a washer about 1mm thick and it is perfect.
Next was the roller weights. 6 of them, black with brass centers. I removed 3 of them. I have done this... add them back, remove them, add them back and finally removed them again. I did a lot of testing... 300+ kilometers worth on the same stretch of road over many days just to make sure there was a difference and there is. I also made sure to keep an eye out for wear on the variator and rollers themselves. No visible wear at all. I removed every other one so it would stay balanced. I also removed the air inlet plug to the CVT case, the rubber one with the 4 small holes in it... the tube is still there just not the end cap with the holes... this added at least 12hp
On flat ground before any modifications, tires at 32psi, the scooter would sit at 35-40mph indicated on the spedo (which I know is off). After modifications approx. 42-50mph indicated on the same stretch, same starting point, same end point, same tire pressure. Hill climb before mods, start point up to 20mph and at the top 15mph. After mod, start point up to 30mph and at the top 25mph indicated. Top speed, long, flat road and in a tuck before mod indicated 45mph... after mod, indicated 50-52ish mph. Actual top speed maybe just over 40mph I am sure because I can catch traffic on a 35mph road.
This experiment is two fold, one, to make my buddies scooter faster and 4, to let me know what works as I plan to purchase a Peace Sport B09 here soon... it's a larger frame with much bigger tires.
I sold my car and he offered to let me borrow his scooter for a while until I get another ride and to break it in for him so I have been. However, when I first got it from him it would not start. I could crank it and crank it but it would not run. Oh it would act like it wanted to start but never would. Bad gas for sure. I drained the gas... twice and also cleaned the carb as best I could. It runs now but stalls at stop lights. I did the first oil change and filter screen cleaning at 300 kilometers and used full synthetic oil and changed the spark plug to an NGK.
The scooter now has just over 600 kilometers on it and I have modified it just a bit but only to the transmission. I removed the variator and inspected everything under the CVT cover. All looked very well and pretty clean... but hey, it was new. Did some reading and research for a while and decided to de-restrict the scooter. First, the variator... OFF WITH THE SPACER!!! But there was no spacer, washer or other device for keeping the drive faces apart. The only thing was the Bushing/Boss. There was a line on it from where the drive face wouldn't pass so I milled it down to the line... it was too much so I made a washer about 1mm thick and it is perfect.
Next was the roller weights. 6 of them, black with brass centers. I removed 3 of them. I have done this... add them back, remove them, add them back and finally removed them again. I did a lot of testing... 300+ kilometers worth on the same stretch of road over many days just to make sure there was a difference and there is. I also made sure to keep an eye out for wear on the variator and rollers themselves. No visible wear at all. I removed every other one so it would stay balanced. I also removed the air inlet plug to the CVT case, the rubber one with the 4 small holes in it... the tube is still there just not the end cap with the holes... this added at least 12hp
On flat ground before any modifications, tires at 32psi, the scooter would sit at 35-40mph indicated on the spedo (which I know is off). After modifications approx. 42-50mph indicated on the same stretch, same starting point, same end point, same tire pressure. Hill climb before mods, start point up to 20mph and at the top 15mph. After mod, start point up to 30mph and at the top 25mph indicated. Top speed, long, flat road and in a tuck before mod indicated 45mph... after mod, indicated 50-52ish mph. Actual top speed maybe just over 40mph I am sure because I can catch traffic on a 35mph road.
This experiment is two fold, one, to make my buddies scooter faster and 4, to let me know what works as I plan to purchase a Peace Sport B09 here soon... it's a larger frame with much bigger tires.