Clinician
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Post by juan on Apr 21, 2015 15:08:51 GMT -6
Hello, I have a 2011 244cc scooter with 1500 miles that will not start. I bought the scooter this way so I don't know its history. When i adjust the exhaust valve to the far right it will stumble and try to start but won't quite make it. When it try's to start it makes a loud clanking noise. I have cleaned the carb and replaced the CDI. Any suggestions? Thanks
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Post by Alleyoop on Apr 21, 2015 15:59:39 GMT -6
Try to find where the Clanking is coming: 1. From the Right side by the muffler or from the Left side cvt side. Normally the valve adjuster should be near the center like this:
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Clinician
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Post by juan on Apr 21, 2015 16:30:30 GMT -6
Clanking is coming from the right side near the muffler, I checked the bolts to the pipe and they are tight.
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Post by Alleyoop on Apr 21, 2015 17:54:28 GMT -6
Then I would suspect the STARTER CLUTCH, if it does not release when trying to start or after it starts they make a nasty metal rattling noise. Alleyoop
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Post by billg on Apr 22, 2015 18:05:02 GMT -6
Replace the spark plug. I had a plug with less than 1000 miles on it act just this way. Get NGK plugs. Forget anything else except while you are waiting for NGK's.
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Clinician
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Post by juan on Apr 23, 2015 11:59:33 GMT -6
Thanks for the suggestions. I will try both and report back.
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Post by Alleyoop on Apr 23, 2015 12:04:22 GMT -6
If you can get a Video with sound to listen to the noise your hearing it may help pinpoint the culprit. Alleyoop
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Post by spandi on Apr 26, 2015 22:56:31 GMT -6
Then I would suspect the STARTER CLUTCH, if it does not release when trying to start or after it starts they make a nasty metal rattling noise. Alleyoop Funny you should say that Allyoop . Lots of Chinese 250's seem to have weak starter clutches, (I replaced mine with an OEM Honda unit to avoid any future problems)
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Post by billg on Jun 12, 2015 20:40:04 GMT -6
Get a copy of the maintenance or shop manual for your engine. Most likely you need the Honda Helix CN250 manual. That's the 244cc engine. Google it for free downloads. It will show you how to properly adjust your valves. You must align the engine to the proper TDC marks to adjust the valves. If you didn't you might have bent the valve stem. If you are lucky, you just adjusted the exhaust valve way too loose and hence the clanking. Be sure you do this right, it will get expensive if you don't. You don't have to pull the valve cover, there are view ports for aligning the engine for a valve adjustment. It's in the manual.
Once you have the valves adjusted correctly, make sure the spark plug is good. If the spark is weak, change the plug before you go any further. I had a hard starting problem with my Lance Duke Turing 250 that turned out to be a bad plug, after much gnashing of teeth.
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