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Post by 125scooterbro on May 16, 2017 15:28:55 GMT -5
Hello scooter heads, i have this starting problems on a 125, i replace the start motor (no help) then starter relay (no help) i have this problem at starting since i buy it, i have also adjust the valves some while ago but maybe i leave to much clearence or not sure, i remember i go with a 5mm on both intake and exhaust. But maybe it's to much or to little..? And after i done the adjust still no help. The battery i am 100% is good. Now i am sure it must come from the valve adjust since every wire is in place. Does some one know the real size of the adjustment of the valves?
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Post by toddmaples on May 16, 2017 21:43:58 GMT -5
Hello scooter heads, i have this starting problems on a 125, i replace the start motor (no help) then starter relay (no help) i have this problem at starting since i buy it, i have also adjust the valves some while ago but maybe i leave to much clearence or not sure, i remember i go with a 5mm on both intake and exhaust. But maybe it's to much or to little..? And after i done the adjust still no help. The battery i am 100% is good. Now i am sure it must come from the valve adjust since every wire is in place. Does some one know the real size of the adjustment of the valves? 5mm is WAY to large of a gap. 0.003INCHES and 0.004Inches for intake and exhaust. |
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Post by 125scooterbro on May 17, 2017 10:03:27 GMT -5
Hello scooter heads, i have this starting problems on a 125, i replace the start motor (no help) then starter relay (no help) i have this problem at starting since i buy it, i have also adjust the valves some while ago but maybe i leave to much clearence or not sure, i remember i go with a 5mm on both intake and exhaust. But maybe it's to much or to little..? And after i done the adjust still no help. The battery i am 100% is good. Now i am sure it must come from the valve adjust since every wire is in place. Does some one know the real size of the adjustment of the valves? 5mm is WAY to large of a gap. 0.003INCHES and 0.004Inches for intake and exhaust. il go then with that as soon as i have time and post my result, also how much is that in mm? I live in a metric system country |
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Post by floridagull on May 17, 2017 11:57:06 GMT -5
2.54 cm/inch; 25.4 mm/inch...   |
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Post by refrig on May 17, 2017 13:36:40 GMT -5
.003in=.0762mm .004in =.1016mm
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Post by toddmaples on May 17, 2017 13:52:26 GMT -5
.003in=.0762mm .004in =.1016mm This. You have aluminum soda pop cans there, yes? Cut a strip out of the side of one, fold the last two-thirds in half one time. Then use this as a feeler gauge to set the valve lash. |
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Post by 125scooterbro on May 17, 2017 16:03:45 GMT -5
.003in=.0762mm .004in =.1016mm This. You have aluminum soda pop cans there, yes? Cut a strip out of the side of one, fold the last two-thirds in half one time. Then use this as a feeler gauge to set the valve lash. lol, i have every tool a man needs, and ofc the valve tool from 3mm to 50 mm |
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Post by 125scooterbro on May 17, 2017 16:05:37 GMT -5
2.54 cm/inch; 25.4 mm/inch... i dont even use the ''retard'' word and people got butthurt lmao |
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Post by toddmaples on May 17, 2017 17:48:29 GMT -5
This. You have aluminum soda pop cans there, yes? Cut a strip out of the side of one, fold the last two-thirds in half one time. Then use this as a feeler gauge to set the valve lash. lol, i have every tool a man needs, and ofc the valve tool from 3mm to 50 mm Just trying to help, some people dont want to spend $20 on a tool thats only used occasionaly. In this case the thickness of a sodacan wall is close enough to use to set valve lash. |
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Post by 125scooterbro on May 18, 2017 1:11:56 GMT -5
lol, i have every tool a man needs, and ofc the valve tool from 3mm to 50 mm Just trying to help, some people dont want to spend $20 on a tool thats only used occasionaly. In this case the thickness of a sodacan wall is close enough to use to set valve lash. yeah man thanks anyway |
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Post by chewbaca on May 18, 2017 10:25:48 GMT -5
After setting the proper valve lash test to see if you have good compression
Remove the belt cover and turn the motor over by hand
You should have a springy resistance when it's compressing
If you don't have that then it's bad valves, rings or cylinder and you will need to order a new head gasket so you can remove the head and take a look.
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Post by 125scooterbro on May 19, 2017 4:04:23 GMT -5
After setting the proper valve lash test to see if you have good compression Remove the belt cover and turn the motor over by hand You should have a springy resistance when it's compressing If you don't have that then it's bad valves, rings or cylinder and you will need to order a new head gasket so you can remove the head and take a look. I remember when i turn the engine over in the right place by hand before i adjust the valves it has pretty good resistance. But anyway i have another 125 with same engine and on that one it takes half of second for the engine to start, also i remove the kick start on both since they broken and cheap so i count on the electric start. So i like i say i have no idea why is so hard to start even when i give gas it will struggle to start than a click sound and boom the engine dies but then if i start it again and give a little gas it slowly comes to life, or me its not a big problem but like i said i put many new things on it and still no results. Dany |
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