PsychDoc
Active Member
Wish I could help you Luke- this is my first rodeo. But boy howdy when I get those jets delivered I’ll shurely give y’all an update.
They are great carbs for these little china girl engines but, like I said, you have to find the right jet size, there is no clip to make it run leaner or richer so it's all in the jet size.How are these carbs? Even though im a big NT carb fan the only issues i had with nt carbs where going over many bumps for years the float level slowly creeps up from being bent up when the float jumps upward over a bump starts too leak gas really bad and stall really easy fix though just have too bend it back down
Well it sounds like you are headed in the right directionJ- E- T- S Jets- Jets- Jets!
Ok- finally have Jets in hand. The stock is not marked so I thought I would try the #70 first. In all fairness I also switched from break in gas at 20:1 to fresh 40:1. I know if this were a proper experiment I would only change one variable- don’t turn me in to the ethics board.
The #70 was worse- throughout the throttle range. Barely a 2-stroke anywhere. Not surprised, but worth the effort to confirm. Barely got 23mph. Since that was clearly off I jumped to #67
The #67 was much better. More torque it seemed- good 2-stroking through ¿ say 40-80% throttle. May have a new top speed of 26mph, so that’s nice. But wot runs crappy. I didn’t climb any hills- a was hungry and half soaked in 2 cycle gasoline.
The size difference in these is half of nothing. My beautiful bride can see it- I can not. I have #61-#70 in single steps so mor fun to come. Oh- the temp of the head was basically the same after each run- roughly 275*F
I have hope for a brighter future. - is that an app? I’m using my garmin watch for speed checks. I would like a good app for the phone I could mount on the handle bars.Well it sounds like you are headed in the right direction
I'd p probably try the 65 next and see how it goes. No matter how hard I beat on my bike I haven't had it get over 385°F
I'm kinda hard on it as you can see
View attachment 89714
Yup it's an app from the play store.I have hope for a brighter future. - is that an app? I’m using my garmin watch for speed checks. I would like a good app for the phone I could mount on the handle bars.
J- E- T- S Jets- Jets- Jets!
Ok- finally have Jets in hand. The stock is not marked so I thought I would try the #70 first. In all fairness I also switched from break in gas at 20:1 to fresh 40:1. I know if this were a proper experiment I would only change one variable- don’t turn me in to the ethics board.
The #70 was worse- throughout the throttle range. Barely a 2-stroke anywhere. Not surprised, but worth the effort to confirm. Barely got 23mph. Since that was clearly off I jumped to #67
The #67 was much better. More torque it seemed- good 2-stroking through ¿ say 40-80% throttle. May have a new top speed of 26mph, so that’s nice. But wot runs crappy. I didn’t climb any hills- a was hungry and half soaked in 2 cycle gasoline.
The size difference in these is half of nothing. My beautiful bride can see it- I can not. I have #61-#70 in single steps so mor fun to come. Oh- the temp of the head was basically the same after each run- roughly 275*F
Dang, that's a very cool head temp. With the stock head I was seeing 350-400 (105-110f weather) and 325 to 350 with an aftermarket.The size difference in these is half of nothing. My beautiful bride can see it- I can not. I have #61-#70 in single steps so mor fun to come. Oh- the temp of the head was basically the same after each run- roughly 275*F