idle unstable

[gazbeemer]

Hi bike is a rd 125 lc mk 1. Although has a mk 2 engine. Just rebuilt engine etc and is running really nice with smoth power delivery etc. Takes a dozen kicks to start from cold but thats fine I can live with that. What I cant live with however is once its warmed up and stop after a run the revs seem to take about five seconds or so to return to idle. Prob hangs from bout 2500 rpm then falls to idle over the next few seconds. Also noticeable when slowing down through the gears. Any ideas as other than this im totally pleases with the running. Cheers in advance guys

[mudguts]

lower the tick over when hot (turned up too high i fink), adjust your air screw till revs pick up then turn it in 1/4 turn, if less than one turn out, bigger pilot jet needed,

[broughton5]

have a look in your carb from where the engine side is, theres a angled hole which heads down towards the pilot passage i think its called the bypass , had same probs has you with tickover and found that to be blocked after a clean out all was good.