I needed a few small things for a couple of bikes I built so I decided to order from thatsdax so I could get an RT carb & save on shipping for everything. I always rode with the stock carbs that came with 66cc HT's, and I never know how much of a difference a better carb & right jet would make.
I installed the carb on my own bike that was running very good. I port-matched the intake & exhaust as good as possible, milled tho head & top of cylinder, and removed all over-cast slop in all 4 ports & where applicable. It was running a LOT better that a plain old stock HT, but with the new carb it ran smoother, sounded better & had more torque as well as speed.
I took the afternoon & tried different jets out. I'm not sure what the stock jet size is, but after trying them all out I could clearly see the 60 jet was the best performer. The 65 ran pretty good, but there was still a bit too much 4-stroking. With the 60 it only 4-strokes a little in high rpm's.
The throttle response is also improved with the new carb, and there is more of a crisp feel to it now as well. I can not say enough good things about the RT. Also, Thatsdax is a class act too. Took a few days for them to even get the merchandise packed up & shipped, but it still arrived 5 days after I ordered it.
I installed the carb on my own bike that was running very good. I port-matched the intake & exhaust as good as possible, milled tho head & top of cylinder, and removed all over-cast slop in all 4 ports & where applicable. It was running a LOT better that a plain old stock HT, but with the new carb it ran smoother, sounded better & had more torque as well as speed.
I took the afternoon & tried different jets out. I'm not sure what the stock jet size is, but after trying them all out I could clearly see the 60 jet was the best performer. The 65 ran pretty good, but there was still a bit too much 4-stroking. With the 60 it only 4-strokes a little in high rpm's.
The throttle response is also improved with the new carb, and there is more of a crisp feel to it now as well. I can not say enough good things about the RT. Also, Thatsdax is a class act too. Took a few days for them to even get the merchandise packed up & shipped, but it still arrived 5 days after I ordered it.
![IMG_4039[1].jpg](https://motoredbikes.com/data/attachments/41/41118-5fd711ab5ceb107efbea0f8aea888a70.jpg "IMG_4039[1].jpg")
