:bye:Hi to all,im basicaly new to the petrol side of life,so a little help if you can thanks,i have a zen G260pum with a rcmk barrel/head with a walbro 257 carb,would anyone have an idea for correct H/L settings for this or would it be the same as the standard zenoah setting,thanks peter.:drinks:

Typically the 257s tune at about 2 on Low and 1 on High. I usually start a little "fat" with 2-1/4 and 1-1/8 and fine tune based on performance and plug readings (color).

marc wrote:I think he ment 2 low 1 high
jtd

YES absolutely...I had those reversed! I edited my poste, thanks for catching that JTD!!!:drinks:

no problem marc, just lookin out for fellow boaters.

Thanks heaps guys,much appreciated,and again:drinks:cheers.