I purchased a Graydon Proline Pipe for the LTA-50. I needed some more ponies out of the little machine and this is the only pipe that looks to have a decent performance potential.

Well, I got everything hooked up and tuned this weekend. I modified the air intake as well. The K&N RU-0200 fits perfect. I cut the stock airbox right after the the box where the stock foam filter fits and left the piece that bolts to the caburetor in place. The K&N with an outerwear fits perfect on it. I had to remove and modify the bracket that holds the brake cables so that it could still support the union of the cables.

I jetted to a 75 main jet and took out the first pilot. It ran great on the top end but as soon as you let off the throttle from a high speed pass it would load up and want to die. After a bunch of trial and error, I found out the bike ran so much better with the first pilot back in at low speeds. Its running great now. I may try to go to a 80 main and see if it still pulls.

I took it over to a buddy's house to do the final tuning. He has an LTA-50 for his son as well. It is stock with all the restrictors removed. We drag raced up and down his street to see how big the difference the full pipe, filter and re-jet made. I am about 40 lbs heavier than he is. We raced from a dead stop at the bottom of his street which has a pretty good long grade. By the time I was to the top I was about 10 LT-50 bike lengths ahead! When we switched bikes and he rode the piped one, I gave up at mid hill. The top end of this thing rips now (compared to stock)!!!!!

I am thoroughly pleased with these modifications. This should allow my 40lb son to finally crest some of the dunes at Glamis this season. It will keep me from wanting to by him an LT-80 which physical size wise he is not ready for yet.

Hope this helps anyone with small kids looking for a little more performance from their LTA-50.