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Post by CrazyKeewayGuy on Sept 22, 2020 13:04:23 GMT -5
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Post by geoffh on Sept 22, 2020 15:01:26 GMT -5
I,m not sure but that belt looks a tad to long for that set up ,I would compare it with the old one or even better try it with your new variator.
Geoff
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Post by aeroxbud on Sept 22, 2020 15:11:43 GMT -5
Geoff might be right. It should sit at the bottom of one side. And the top of the other. It's hard to tell buy the pictures, as they can be misleading. But it doesn't look like enough tension.
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Post by CrazyKeewayGuy on Sept 23, 2020 0:33:13 GMT -5
I think it's just me not doing it wright or something because on the malossi website this belt is for this setup www.malossistore.eu/over-range-yamaha-minarelli-6112812-P and if u have watched TPR 86cc build series he's using this belt for his setup too on the same engine, I'll try heavier weights to see if that will change something
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Post by Steve B on Sept 23, 2020 6:32:55 GMT -5
CrazyKeewayGuy, You're belt looks spot on to me. It sits perfectly, I can tell because when its tight in the back you still have some slack to move up about 1mm, which in turn is near perfect.It is difficult to mimic the belt travel on front pulley because there is no tension spring and you're doing it by hand.
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Post by Zino on Sept 23, 2020 7:34:27 GMT -5
I see a belt that is long enough front and back full belt travel on the front variator is way off by your marker test. you can get below 2mm with that variator . You got the belt in the rear pulley low enough by hand so that implies the torque driver is not binding.
Do you have the variator shim and drive boss from the prior variator . What length is the stock variator plus shim compared to your current set up. If there is a difference in size can you run the stock variator drive boss in this variator and test .
I would try heavier weights first .
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Post by CrazyKeewayGuy on Sept 24, 2020 7:44:13 GMT -5
I tested the weights from 6 gram up to 8 grams and it seems that it's most happy with 7 gram and 3.5k spring going from 0 to 50 km/h in 5 sec, belt travel on vario went up to 2,6mm from 10mm and I went around 90 km/h did not want to go any faster yet due to low mileage but it still don't want to rev higher than 8800 and above 80km/h it was gaining speed quite slowly also when I start driving it rev than dip and rev back again. Does it will change if I port my engine like he did in he's video at 2:20 www.youtube.com/watch?v=9QZo0CJe-eg&list=PLm3-Rt5jsoluxD_r--k5i85EP1yZ-EjWT&index=4 or is there still something I can check or change? I'll order now 7 gram Dr. Pulley sliders to get even more of my variator but other than that I have no idea what to do.
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Post by Zino on Sept 24, 2020 8:18:45 GMT -5
Okay you fixed belt travel with the 7 grams and 90 kmh is a 20 kmh increase. The Leo vince might be maxed out I got a couple hundred more rpms out of the leo vince then you . That pipe will put a lid on your Rpms . Porting will help a couple hundred rpms A better pipe would do even more If you are on Stock crank Yasuni R if upgraded crank Yasuni C16 would add quite a bit more power . www.pedparts.co.uk/blog/choosing-a-yasuni-exhaust-for-a-sports-70cc-kit
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Post by Zino on Sept 24, 2020 8:21:25 GMT -5
On the power curve of all pipes and the wall of wind will cause you to accelerate fast and then drift to top speed .
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