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Post by genest11 on Apr 14, 2013 11:34:30 GMT -5
Hi All, My scooter has been silent for a year or more (250b machoman with Yamaha copy). I had a big C scare in worst possible area (you know what I mean guys) . After that I had to have a total shoulder replacement (yeah, life sucks sometimes) . I now feel ready to start scooting again. I can lift my leg again (no dog jokes please) and I can hold the handel bar without any pain . Put some fresh gas in the rascal and it fired up pretty quickly and after several attempts went to idle and slowly rose to 3000 rpms and stayed there, even after a 15 minute warm-up. My scoot always idled at 1900 rpms). When I gave it throttle it starts to sputter at 3100 rpms and then stalls out. If I quickly let up on the throttle it will go back to the 3000 rpm idle. Here is my question: What do you guys/gals think, carb or valves or both? I treated the gas with seafoam and ran it before the gas was drained and the scoot put away. I put on 132 miles since the valve adjustment. I have made no adjustment to the carb yet as I wanted to see what everyone's opinion is on this. On another issue, I was the guy over at the dawg that was giving away a set of 13" tires. I was going to send them to Jonwayrider in SC. But the health isses came up quickly and I never followed through. If jonwayrider is here I apologize and if you still want the tires they are yours. For you I will pay shipping. Thanks.
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Post by ridecheap on Apr 14, 2013 12:12:02 GMT -5
Sounds like the idle screw needs adjusting is all. Everything you did seafoam and adjusting valves already is good. GLAD YOUR READY TO RIDE THE BEAST!
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Post by genest11 on Apr 14, 2013 12:42:53 GMT -5
Ridecheap, thanks for the suggestion but I do not think it is that simple. Don't forget "When I gave it throttle it starts to sputter at 3100 rpms and then stalls out." That's why I did not turn the idle down. There is something else going on, I just don't know what it is and I am hoping someone has had a similar problem with a fix.
Does anyone know if the valves are out of adjustment will it cause the idle to rise? I don't think it would but I am no mechanic. I know it can cause stalling at stops etc.
Could it be dirty jets causing the stalling (fuel starvation)?
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Post by alleyoop on Apr 14, 2013 13:21:26 GMT -5
1. It sounds to me the ENRICHER is NOT SHUTTING OFF the extra fuel and it is Flooding it out.
So take the enricher off the carb and lay it on its side put your thumb over the hole and hold it there and start the motor. Keep your thumb on the hole and watch the enricher it should start to EXTEND OUT within 3 or so minutes and extend out about 1/4 of an inch within 5 minutes.
If it does NOT EXTEND OUT it is bad or it is not getting voltage to heat it up. Touch it and see if it is warm and or hot. Alleyoop
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Post by genest11 on Apr 14, 2013 13:48:44 GMT -5
Thanks alleyoop I will try that. It's raining out now so it looks like I might have to wait awhile or some night this week.
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Post by genest11 on Apr 14, 2013 14:48:55 GMT -5
Some things are more important than a little rain!
alleyoop, I did as instructed. The enricher did not move or get warm. It appears that the needle is all the way out. I gently pushed it in about a 1/4" and it immediately came back out. I checked the connection back to the harness and it appeared okay. I will need to remove the panels to run it back any further.
Does this seem like an enricher problem? I don't mind taking the panels off but I want to have the parts at hand when I do. Is this a common part to get from one of the advertised vendors?
Thanks for you help.
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Post by alleyoop on Apr 16, 2013 16:14:48 GMT -5
Yea if the ENRICHER did not move or get warm or hot it is not getting Voltage from the R/R, I believe yours has a DIODE to feed the ENRICHER, if it does then check by the DIODE if all looks good get the DIODE. Alleyoop So when you took if off how was the PLUNGER RETRACTED OR EXTENDED: Here is the ENRICHER RETRACTED this is what it should look like when you take out and it is COLD. IN this position is feeds EXTRA FUEL. Here is the ENRICHER EXTENDED OUT: After the motor starts it sends VOLTAGE to the ENRICHER and the PLUNGER starts to EXTEND OUT to shut off the EXTRA FUEL within 5 minutes or so. Here is your DIODE, R/R and CDI:
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