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Post by eggmanfoo on May 4, 2015 21:01:05 GMT
Hold. ..I have recently adjusted the idle screw on my vespa after it was constantly cutting out at idle. It seems that the screw is Loosening itself through vibrations. Any advice on how to fix it...?.
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Post by rab on May 5, 2015 6:20:16 GMT
Replacing the spring will sort it not sure if you can buy it seperate tho .It's only a few quid for a new screw it should come with the spring
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Post by vespasco on May 5, 2015 18:47:04 GMT
If youre really desperate you could use any spring that fits so long as its under enough compression to hold the threads tight
Check youve not unscrewed it so far that the spring is not under compression, although your tick over/idle should tell you where it needs to be.
It may also be worth checking your idle jet is not blocked (blow out with compressed air)
Or it may simply be you need to adjust/tighten the idle adjustment screw that sticks out the top of the carb air filter box.
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mickymidas
High Number
2Ronnies sc , Nuneaton.....Promoting chuckleism to the masses
Posts: 232
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Post by mickymidas on May 6, 2015 13:40:20 GMT
If it is the tickover screw that sticks out of the top of carb that you are on about , I cured mine from winding itself out by using a small rubber grommet ( in an assorted pack from Halfrauds)in the carb hole. It gives just enough grip to stop the screw turning , but not enough to hinder adjustment
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Post by henri on May 6, 2015 14:42:09 GMT
the carb box top should have a top hat shaped grommet ,but as above mickymidas says a halfords 1 will do, H
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Post by vespasco on May 6, 2015 18:02:30 GMT
The hole in the old bajaj air box lid i use does not 'quite' line up and keeps that screw nice n tight!! Hahaha!
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Post by henri on May 7, 2015 8:44:58 GMT
see wonky indian engineering/drillings not all bad ,H
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