2014 Aprilia SR50 Ditech Gianelli Reverse

[aeroxbud]

Injection scoots need love too.
Always interested to see you post about these.

[pinkscoot]

So I put the 6.1 and 7.2 gram rollers in. The RPM maxed at 9100 rpm and it was much more rideable. Top speed seems to be just a little better. I think this may be where it wants to be. I'll check belt travel next time I'm in. I think I may want to loosen the clutch springs a little. Not sure what notch they are on. I'll ride with this for a few days and see how I feel.

[collinsd84]

You've been pretty busy. pinkscoot
Noticed u on a scooter lately. Glad to see that.
Cheers

[pinkscoot]

I'm sure you've heard the GB running up and down the street. It sounds like some chainsaw maniac on the loose.

[pinkscoot]

I finally got the almost last piece on.





There is one small piece that goes under this that's on its way from Italy. But it button up the front and covers all of the fluid tanks.

[pinkscoot]

I did some CVT tuning on this scoot as well. I stiffened the green clutch springs, the lightest I have. I put 6.1 gr rollers in and took the spacers out. I know one thing at a time but I knew this was the direction to go. Take off was much better. It was closer to the power band. I got it to rev out at 9250 rpm and it felt better. The spacers gone put the belt maxed out on the clutch but not all the way down on the variator. I'll run this while I search for that longer belt that fits.

[pinkscoot]

While in my storage unit I found the Yasuni C16 I bought from Oldgeek. Its for a Piaggio engine and I bought it for the ET2 but I'm thinking the SR50 would be a better fit and the Giannelli Reverse maybe for the ET2. Any opinions on this?

[pinkscoot]

So the Vespa parts I've been waiting for are in USPS hell and have been sitting in the USPS distribution center for 4 days. Meanwhile the V13 reeds and the flange for the C 16 came in so I put the SR50 up on the lift and pulled the plastics to install the reeds first. I pulled the intake and got the reed block out and to my surprise I found something in there.




No wonder it felt like it was rich. I have no idea what they are. Maybe coffee beans or peanuts. I had replaced the reeds a while back but they would have had to gotten by the filter and through the throttle body. I pulled the filter and the air box was clean. I really am scratching my head. I got the new reed block out. The advantage is no stopper and they are just one reed. They also sit at an angle and are a slightly larger opening.





It started up and ran great. I should have taken it for a ride but decided to put the C16 on it. That was some chore. I had to install the flange on the pipe and pull the engine back so I could get it up past the hanger. It sits flat and Piaggio exhausts use the ring so I dug out a Minerelli gasket that fit. Got it together and had to adapt the top hanger with some weights to space it out to support the fender. I'll get a spacer for it soon. It started up and I took it for a ride. It ran rough but definitely had some power. It was only a touch louder. I got home and I was poring gas out. What the F. I had to quickly pull plastics as it leaked. I discovered the connector for the return from the fuel injector to the fuel tank had popped off when I backed the engine away. I popped it back on and it stopped. It started up again and ran but I had to head off to work and was working late so no loud scoots at midnight.Here is a picture of it on:

[aeroxbud]

That's a mystery how they got in there. Just lucky it didn't suck it into the engine.
Pipe looks good 👍

[oldgeek]

The secrets out! Speednuts, I have some myself

[jloi]

nah, I'll bet those are anti moisture bags that hardened up over time ! came out a couple of years ago . surprised you guys haven't heard

[90GTVert]

I had to look away when the intake swap turned into neutering a reed block. I don't like stock parts either, but that's just cruel.

[aeroxbud]

[pinkscoot]

They say these scoots have balls. I guess I found them.

[pinkscoot]

So I had some time today so I thought I should play with the CVT but first I wanted to figure out the slightly rough idle without tearing into it. I pulled the battery and reached in to check all of the connections including the plug boot. All was good. hmmm. I decided to go get coffee and decide what the CVT needed. It was very low on gas because I had left it all over town. The ride there was a little rough but after I filled up it was much better. When I got to the coffee trailer it was purring very nicely. Oh it needs to warm up to run well.

I got home and pulled the CVT cover and checked the Variator marks and there was still a little left to go. This pipe isn't getting full RPM's and so I don't have the full variator. I decided to try my new belt that's 18.5X834 the old was 18.75X810. It isn't as tight and rides on the top of the clutch and with 2 shims it sits down in the variator. I put it on and started it and gave it a quick rev. Then I opened it back up and it was sitting very nicely. Could stand to be a little shorter but okay. I took it out and it was okay, much better starts. I then dropped the weights from 6.1 to 5.5 and marked the variator again. I took it for a longer ride. The pipe is definitely happier. It was revving to 10,000rpm and hitting the pipe. The scooter has a much smoother ride. I pulled the cover and saw I still had about 4 mm of room left. I'm off next week so I'll do some more playing. and document what I've done and speed and RPM so that I can find the sweet spot. One thing I have noticed is the Temperature gauge never gets really warm it stays in the lower third of the range. I need to look at the plug and see if its rich. Maybe I can find a snorkel to pull to get some more air to it since changing jets are not an option. for now it's good.