Nope, no change to the intake or reeds yet. I still use the stock air box as well with no modifications to it. The Athena BBK that I have coming has carbon fiber reeds included, so those will be added. I really have no work space. Just a small shed with just enough room to park it in along with the kids bicycles. I had plenty of room to do work on the motor assembly once it was removed from the rest of the scoot.
On to stock vs now.
Before the rebuild, I had nearly 2000 (almost) trouble free miles on it. I had some issues with the rear brake cable within the first few hundred miles. Replaced it and problem solved. Top speed on stock was 33-35mph(GPS) average. I was never really impressed with the stock take off from stop. It was very doggy and acceleration bogged at about 20mph and would pick back up again at about 25mph. This issue would come back to haunt me. I didn't feel safe on it in traffic because of it performance. After a near rear-ending (one of several) I decided it was time to do something. I poured over every bit of information throughout the winter before I placed my first order. My first set of goodies was the BBK, ZX-R pipe, and carb. The pipe and BBK were on back order from overseas, so it took about a month to get my parts. In this time I began the tear down and checked the specs of the parts that I planned on keeping. Everything looked great aside from a few loose bolts here and there and some road grime. I'll skip all the details of installing all the parts as it was very straight forward and I had no problems from start to finish. It started very first try, and after minor tuning of the carb, I was ready to begin breaking it in. I knew I needed to replace the transmission parts, but funding was tight, so it had to wait. My plan was to keep the stock vario, but even with the new parts I still had a lot of lag between 20-30mph. I had a set of new rollers laying around. Putting those in had no effect on the lag. I took the vario off and made a clay mold of the inside of the vario to better see it. It appeared to have a flat spot on all the roller guides. I had found my lag problem.
Skip ahead a bit more. Parts ordered. Transmission rebuilt. I used a Prima tuning weight set (3g-14g) to dial in just the right weight. Ordered Stage 6 weight that matched my choice.
Post rebuild performance is like night and day compared to stock. No wheelies, but the front end does get really loose on a WOT takeoff. It's a lot a fun to jump out ahead of someone at a green light. Nobody in my town has even thought of tuning their scoots. Lots of $500 Chinese junk scoots around. It will easily hit 55mph(GPS) and I feel it has more in it. I am still nervous to run it really hard. It only has a couple of hundred miles on it since the rebuild.
I know I have left a lot out, and I am fighting off a serious case of the flu right now. I can thank the kids for that. They always bring home some form of the plague when they start school.
I'll be happy to answer any questions. I don't know much, but I can share what is working for me.
