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Post by drbob on Nov 15, 2017 8:50:23 GMT -5
No matter how i adjust the carb it has this same effect every time. Seems like when i take off the first time after my bike sits it has great takeoff the first time i take off but once i let off the throttle and then get back on it, it goes away and i have a lull when i take off. No matter how i adjust af mixture its there. I think when the auto enricher is on it has the better take off. Is there a way to make it stay on??
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Post by oldgeek on Nov 15, 2017 9:04:56 GMT -5
leaving the enricher on is easy, just unplug it. However you should really fix the actual problem which is likely a dirty pilot jet. Clean you entire carb thoroughly if you are able. If you are unable to do that, at least try to remove the pilot and main jet and clean those well.
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Post by pinkscoot on Nov 15, 2017 10:22:14 GMT -5
What kind of scoot and carb is this? What mods have you done to your scoot?
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Post by drbob on Nov 15, 2017 15:37:17 GMT -5
Ive cleaned the jets and it also does the same thing with a brand new carb i put on.
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Post by drbob on Nov 15, 2017 15:40:58 GMT -5
Its a vento zip
Clone. Stock other then tuning cvt and tecnigas next r pipe. Not sure what the pilot jet is but main is 70.1e40qmb
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Post by drbob on Nov 15, 2017 15:43:29 GMT -5
So im not exactly how the enricher works but unpluging leaves it the "on" position like the choke is on??
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Post by pinkscoot on Nov 15, 2017 19:07:12 GMT -5
The enricher simply puts more fuel into the system when its open. When the scoot has started it slowly closes off and ends the extra fuel. It doesn't choke the air flow like a normal choke would. After you added the Technigas did you retune your carb? See here for how to do that (scroll down to near the bottom). Adding the pipe requires you to up jet the main jet and possibly raise the needle. Usually the pilot is fine but this is a new carb so that may also be part of the issue. Once that is all working well you probably need to retune the CVT. |
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Post by greginisn on Nov 18, 2017 0:54:39 GMT -5
So im not exactly how the enricher works but unpluging leaves it the "on" position like the choke is on?? The enricher is on by design and is shut off by electrically heating a "wax motor". When the wax is warm to hot it expands so that it forces a needle type of thing out from it's housing and it blocks off the excess fuel fuel flow. Amazingly simple gizmo once you accept the wax motor theory. Greg |
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Post by jackrides on Nov 18, 2017 13:39:33 GMT -5
To slow down the enricher turning off, add a 10 ohm 10 watt resistor to the enricher wire. (Radio Shack) Solder the connections then tape it to adjacent wires so vibration doesn't hurt it.
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Post by greginisn on Nov 19, 2017 3:33:55 GMT -5
To slow down the enricher turning off, add a 10 ohm 10 watt resistor to the enricher wire. (Radio Shack) Solder the connections then tape it to adjacent wires so vibration doesn't hurt it. I had assumed there was already a resistor in the enricher circuit. I guess that’s why my enricher times out in about 30 sec. How much will the 10 ohm increase the enricher ON time? Greg |
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Post by 190mech on Nov 19, 2017 5:30:21 GMT -5
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Post by jackrides on Nov 19, 2017 20:53:22 GMT -5
Greg: My ballpark is double the time. Yes, the specs state there is a resistor, but in cold, more resistance is needed. These GY6 beasties are more temp sensitive than I would have thought. Going from 75F to 53F gave me 5 mph! Guess I was rich all summer.
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Post by greginisn on Nov 23, 2017 3:49:52 GMT -5
Jack,
when the weather is warmer here 85 - 90 ish, the enricher doesn’t seem to even to operate. It’s as if the wax has already been expanded. So on those days 2 blips on the throttle and poke the starter and it's running. 45F same thing except the idle speed is higher for that short while. Thanks for the info.
Greg
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