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Post by ricardoguitars on Sept 3, 2015 10:05:38 GMT -5
I tested this out on my TaoTao Powermax 150 last night, and this "trick" worked for me. Here are my observations from the test. Typically, at WOT my chinometer tops out at 100 with 7000RPMs. That's exactly what I tuned my CVT for to avoid the 8000RPMs. This was how she was running last night. So on a straight and level road I maxed her out. Once I was at that limit I eased off the throttle a 1/4ish for a moment then twisted back to WOT. To my surprise the chinometer climbed to 110 and RPMs reached 8000. Once I saw it worked I slowed down, but I was very surprised. My scooter has never gone that fast. I don't think I will be doing that very often. I drive for reliability not speed. Plus the road I drive to work has a speed limit of 45. I don't want to be that guy pulled over for speeding on a scooter. But it was fun to push her limits. If I ever get a ticket for speeding on a scooter, I would make a T-Shirt with the ticket stamped, lol.  |
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Post by beenriding on Sept 3, 2015 10:05:21 GMT -5
I've noticed this on my 250 also, I always just assumed my jetting was a little off so it ran better at 7/8th throttle rather than 100% open. sometimes on long hill pulls I'll back off a hair and get a push.
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Post by JoeyBee on Sept 3, 2015 10:34:48 GMT -5
I've noticed this on my 250 also, I always just assumed my jetting was a little off so it ran better at 7/8th throttle rather than 100% open. sometimes on long hill pulls I'll back off a hair and get a push. Do you have a vacuum petcock or manual? Mine is a vacuum operated petcock. I've heard at WOT the petcock may experience vacuum starvation. I've been meaning to switch to a manual setup, but haven't found the time and I avoid working in my garage during the summer. Everything is bigger in Texas, even the temperature during the summer. |
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Post by beenriding on Sept 3, 2015 12:28:01 GMT -5
I've noticed this on my 250 also, I always just assumed my jetting was a little off so it ran better at 7/8th throttle rather than 100% open. sometimes on long hill pulls I'll back off a hair and get a push. Do you have a vacuum petcock or manual? Mine is a vacuum operated petcock. I've heard at WOT the petcock may experience vacuum starvation. I've been meaning to switch to a manual setup, but haven't found the time and I avoid working in my garage during the summer. Everything is bigger in Texas, even the temperature during the summer. Yes I do......That makes sense, I've felt that sometimes it starves for fuel. And like you I've heard the benefits of a manual P-C. just not done it  . But that's one of the things I used to hate, get half way down the street, then remember to turn fuel on. |
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Post by JoeyBee on Sept 3, 2015 17:51:15 GMT -5
beenriding... Same here. I have one on my ATV and its always a pain in the butt when I forget to turn it on. That's one of the reason why I haven't switched over yet. Others here have switched and say they just constantly leave it on and rely on the carb float to prevent overfilling.
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Post by beenriding on Sept 3, 2015 18:55:49 GMT -5
JoeyBee I suppose since I ride almost everyday leaving it on wouldn't be an issue. Then I could block that vacuum port!
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Post by JoeyBee on Sept 3, 2015 21:12:20 GMT -5
JoeyBee I suppose since I ride almost everyday leaving it on wouldn't be an issue. Then I could block that vacuum port! That's what I was thinking also. I'm a fan of simplicity. At that point the only vacuum operated part would be the carburetor. |
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Post by ghcoe on Sept 4, 2015 8:37:00 GMT -5
Problem with just leaving a manual PC open is that if the float needle leaks just a little it will drain fuel into the intake and then down into the cylinder around the rings and into the oil. Don't ask me how I know, but I would rather mess with a vacuum actuated PC than forget to turn off the manual PC and have a headache 10 miles from home.
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Post by beenriding on Sept 4, 2015 10:25:31 GMT -5
ghcoe When I had a manual I'd turn it to off as I approached home then let it idle till all gas was gone. That's how I was taught to keep your 2T carb clean. But now I ride daily, sometimes 2x, I think I could get by during the busy season.
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