wont idle off clean.

[idc1967iow]

Hi i am running Muggy 186,delly 26phbh ,engine runs nice ,but when shutting down from a run it wont return to idle instantly ,takes a few moments to come down to idle ,could it be a weak slide,any idea's please???.
Thanks all
Ian. :fb:

[Andy Pickering]

Do you mean it runs high revs before settling ? If so it could be an air leak, check plug colour to ensure its not running lean, check all studs are tight and if your running rubber sleeve on your carb check for any splits..

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[idc1967iow]

Checked all the joints all seem ok,plug light tan colour

[Andy Pickering]

Checked all the joints all seem ok,plug light tan colour

Milk chocolate light or milky bar light

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[idc1967iow]

Milk choc

[Darrell Taylor]

try a bigger pilot jet up 1 or 2 sizes or start by adjusting the mixture screw setting it to a richer position the tickover will probably need turning up at same time ,check the carb isnt touching down onto anything causing vibration of the carb ,i presume its a rubber mounted carb

[idc1967iow]

Cheers for reply's,yes rubber mounted,will try the pilot jet :fb: