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Post by bille on May 31, 2014 13:55:05 GMT -5
does bogging down on throttle mean the mixture screw is too much clockwise or counter?
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Post by alleyoop on May 31, 2014 14:00:33 GMT -5
Not enough fuel remember try and get the highest idle after it is warm, try counter clcokwise 1/4 turns at a time and WAIT about TEN SECONDS to let the motor catch up with the new setting. If after you get the highest idle it is idleing to fast lower the idle using the IDLE SPEED SCREW. then test it on the center stand give the throttle a quick twist let go and rpms should climb and drop down to idle.
Get a Video going want to see how the belt is now sitting in the CVT and working.
Alleyoop
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Post by bille on May 31, 2014 14:03:55 GMT -5
Here is a video of what it's doing right now.
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Post by alleyoop on May 31, 2014 14:09:50 GMT -5
Great, it is not stalling out, just need to adjust the Fuel Ratio, looks like it needs more fuel so try 1/4 turns on the fuel ratio screw COUNTER CLOCKWISE and after each 1/4 try it and see if the bog goes away. If it gets worse then go CLOCKWISE 1/4 turns and try it after EACH 1/4 turns.
Alleyoop
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Post by bille on May 31, 2014 15:09:17 GMT -5
seems like no matter where the screw is, it bogs down on throttle. Still trying..
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Post by bille on May 31, 2014 15:17:46 GMT -5
good news: It's been running for 45+ minutes and no stalling at all.
bad news: can't get past throttle issue.
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Post by alleyoop on May 31, 2014 15:19:27 GMT -5
Can you get the Idle just a little lower. OH and by the way did you ever fix the throttle cable. Dang, look around and check for AIR LEAKS make sure nothing is disconnected and nice and tight the clamp on both sides of the carb also any unconnected hoses going to the AIR BOX etc.
Alleyoop
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Post by bille on May 31, 2014 15:24:11 GMT -5
I have to give up for now and go be productive in the world  |
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Post by alleyoop on May 31, 2014 15:29:36 GMT -5
OK, but you are very close now at least it will not die out on you. It could just be air leak someplace and will not take throttle if adjusting the fuel ratio does not help. You can get a spray bottle of water and then spray individual areas by where the carb attaches and by where it attachs to the motor etc and IF the IDLE CHANGES when you spray the water you found a leak.
Alleyoop
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Post by bille on Jun 1, 2014 10:54:08 GMT -5
The scooter is warming up now, going to give it another shot. Just to recap, things I've done:
1. Replaced throttle cable
2. Replaced Sparkplug
3. Replaced engine oil
4. Adjusted valves
5. Replaced belt with larger one
6. Removed tank venting system
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Post by bille on Jun 1, 2014 11:11:39 GMT -5
No luck so far. But I wrote down some things:
Starting at 2.75 turns COUNTER CLOCKWISE, I recorded the RPM, checked the throttle for bogging down than recorded in which direction I turned the mixture screw 1/4 turn. For the RPM, I turned the screw, waited 10 seconds and than noted the lowest and highest RPM I saw during a 10 second window:
RPM / Throttle Bogged / Quarter Turn
1900-1940 YES Counter
1900-1940 YES Counter
1900-1920 YES Clockwise
1900-1950 YES Clockwise
1940-1960 YES Clockwise
1930-1940 YES Clockwise
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Post by bille on Jun 1, 2014 11:14:57 GMT -5
Going to disconnect auto chock and see if it changes anything.
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Post by bille on Jun 1, 2014 11:18:28 GMT -5
disconnecting auto chock made no difference
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Post by alleyoop on Jun 1, 2014 14:10:33 GMT -5
You have to have an AIR LEAK SOME PLACE that is crazy. Bille disconnecting the auto choke what that does is ACTUALLY feeds it more fuel. The Auto Choke is really the opposite of a cars choke, what the Auto Choke does on the Scooters is ACTUALLY feeds more fuel for COLD STARTS. Once the motor starts it sends voltage to the ENRICHER and the gel inside expands and pushs out the Plunger and cuts off the extra fuel. So if you take the ENRICHER off the carb held on by two screws and a C clamp WHEN COLD it should look like this: PLUNGER RETRACTED WHEN COLD FEEDS EXTRA FUEL:  PLUNGER EXTENDED CUTS OFF FUEL AFTER 3-5 MINUTES OF MOTOR RUNNING:  |
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Post by bille on Jun 1, 2014 14:38:45 GMT -5
How should I go about finding the air leak?
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..BAD TO THE BONE..