Originally Posted by AVB
It is not a Choke. Yes used to turn fuel off during long storage due the needle seat not staying 100% sealed off. Actually a common problem with most Honda that have worked on where engine either becomes hydro-locked or the oil is diluted with fuel.

oh, thanks AVB smile..odd thing though.. it starts and runs fine with the lever in the 'OFF' position. As this is used to prevent fuel flow past that point.. what is the likely cause of allowing the fuel flow in 'OFF'?.. bad petcock gasket?

With the common problem you mentioned, what's the main cause of that? excess fuel getting into the cylinder ?

Originally Posted by AVB
But as the problem the customer is describing the needle is not sealing off in the seat as should be doing. This area would need to looked at and determination made as to what is causing the problem. Sometimes it is just a hung needle or trash somehow got wedged in the area preventing sealing. Sometime even the needle seat maybe so worn that it needs replacing. Many Honda style here don't even seat available which means a new carb.

Is there a way to tell if the seat or needle are worn ?

Do these carbs have adjustable needles? if I recall.. I don't think it does (could be wrong), I think the needle just sits in the float.

Are there any videos / reading material on working on / repairing these HONDA type carburetors ?

Thanks again for the info, much appreciated smile