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General => Technical | How To => Topic started by: mclark999 on August 23, 2016, 05:11:00 PM

Title: Starter circuit Keihin 50
Post by: mclark999 on August 23, 2016, 05:11:00 PM

For testing the auto choke/bystarter, the manual says to try to blow through the circuit when it's cold. The hand drawn picture in the manual shows them blowing through a hole at middle top. From actual picture you can see there is no hole at the top. Any ideas?(http://uploads.tapatalk-cdn.com/20160823/2eea957d322203c803f2f26449e4db91.jpg)

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Title: Re: Starter circuit Keihin 50
Post by: mclark999 on August 23, 2016, 06:13:18 PM

(http://uploads.tapatalk-cdn.com/20160823/b37dbbb84b42362fb7d1c5558011c84a.jpg)

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Title: Re: Starter circuit Keihin 50
Post by: tortoise on August 23, 2016, 06:18:08 PM

Although it would require initiative on your part . . look for an exterior casting bump (internal passageway) from the enricher base to carb inlet.

Title: Re: Starter circuit Keihin 50
Post by: mclark999 on August 23, 2016, 06:22:57 PM

Btw, when I blow into the three different tubes when the scooter is cold, they are all open. On the right and left, I just heat air blowing through, but the bottom, middle one I hear gas bubbling and if I suck on it gas comes out.



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Title: Re: Starter circuit Keihin 50
Post by: mclark999 on August 23, 2016, 06:25:02 PM

Quote from: tortoise on August 23, 2016, 06:18:08 PM

Although it would require initiative on your part . . look for an exterior casting bump (internal passageway) from the enricher base to carb inlet.

Thanks. That was easy. It's the hole on the right. Passage goes right to the enricher.

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Title: Re: Starter circuit Keihin 50
Post by: mclark999 on August 23, 2016, 06:36:40 PM

(http://uploads.tapatalk-cdn.com/20160823/2fef07c04bd2f9bc339288069ad3ffd9.jpg) This procedure passes, but when I connect a volt meter to the yellow and green wire when the scooter is running, it's only reading half a volt, not twelve volts.

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Title: Re: Starter circuit Keihin 50
Post by: mclark999 on August 23, 2016, 07:58:09 PM

Ok, so the enricher is working right. It shuts off the passage when it gets hot as it's supposed to.

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