Stuttering & four stroking

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Smudge
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Main scooter: Vespa GTS
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You say at low revs so maybe your idle is too rich for the conditions, try dropping down a size and see what it is like. 10 minutes effort and you may be sorted.
Lambretta67
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Main scooter: Lambretta L.I. 200 special
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Thanks I will give that a go.
hat
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Joined: Fri Jul 05, 2013 7:19 pm
Main scooter: SX150/ Mugello 186
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Could try backing off on the mix screw a touch as well, maybe quarter to half a turn leaner
Lambretta67
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I will try anything suggested
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EddieStone
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Joined: Mon Aug 17, 2015 4:13 pm
Main scooter: Lambretta Li 150
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Have you checked your choke cable is adjusted properly? I adjust mine so there's a bit of slack in the cable when it's off. I'd check that as well, make sure the plunger is clean and closes properly.
Lambretta67
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Would it still tick over if it wasn't adjusted properly. Because it ticks over fine. Was going to check scoot last Sunday but I pored down
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EddieStone
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Not enough slack, it seems. Bloody choke cable snapped at the nipple today!
Lambretta67
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That's a bit of bad luck. Hoping for a dry weekend so I can sort my scoot out
Lambretta67
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Joined: Fri Mar 30, 2018 5:02 pm
Main scooter: Lambretta L.I. 200 special
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Took the scoot out today still ran badly but not as bad as the really hot day we had . Adjusted the mixture screw a quarter of a turn in & it runs fine now. Thanks everybody for all the advice .
hat
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Posts: 59
Joined: Fri Jul 05, 2013 7:19 pm
Main scooter: SX150/ Mugello 186
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good news, thanks for letting us know. amazing how tiny alterations can make all the difference some times
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