I now have my carb re-jetted. My buddy tytnpwr put in my new 135 jet from a stock 122.5 jet. He made some other adjustments to the float and also to a pin in the carburetor. I will consider this post a rough draft until I talk to him to get the details.
Instead of drilling holes in or removing the airbox, I took off the airbox cover. That has made the bike sound really aggressive. It is much, much louder and compliments the new jet perfectly. The supermoto has changed it's tune!
We attempted to swap out the front sprocket but it was not possible. I was given some bad information by the dealer. They claimed the front sprocket was a 13 tooth, which they upgraded to a 14 tooth on the salesman's XF200 to give it better top end. Come to find out there is already a 15 tooth sprocket stock! So I will have to return the 14 tooth sprocket I ordered to get a 16 tooth front sprocket. So needless to say, disregard the sprocket part number previously mentioned in an earlier post.
I now have over 725 miles on the Qlink XF200 supermoto. To get the work done today I rode 60 miles round trip. All but 3 or 4 miles were highway. 70 mph at 8000 rpms all the way. One really, really big hill and several other hills at highway speed and it was not a problem. Someone (a very well traveled 200cc rider in China) mentioned to me that some big hills may be an issue with this 200cc powerplant. Glad to see they were wrong (in his defense, in China, motorcycles are prohibited on most of the highways).
I still want to get that front sprocket done. This is one of the downsides of a new bike. Things are trial and error. More research is in order. I am eventually going to do the rear sprocket as well but that will need to be special ordered. Tytnpwr has already done his but it was more of an ordeal than I originally understood. I will be tackling that in the next month or two. Tytnpwr rode my bike today and said that with the new 135 jet my bike was faster than his with stock sprockets! I bought 2 135 jets so he will be putting one in his next week. Although it is unclear whether top end is better since he just took it down the street and back.
