OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Trimmers and Brushcutters McCulloch Trimmers & Brushcutters McCulloch Pro Mac I Super

Hi Bruce,

Could you please send me the tune up instructions for this model (I have 32cc). The carby is a Walbro and I could not find Mexico stamped on it anywhere (it only has a stamp 'ET' 'WT434' .. I hope I recorded the number correctly).

I also need to replace the air filter foam. Could you tell me what type of foam to use so I can cut something to size. I believe I should also dampen it in a bit of 2 stroke oil?

After reading through your site I have identified several resolutions to problems I have been having. Thanks for the great site!

jamesl,

The settings for the carby are as listed in other posts in this area.

1. Screw in both low & high screws till they bottom.

2. Undo the low screw 1 & 1/4 turns.

3. Undo the high screw 1 turn.

4. Then start the machine and only udjust the low screw until it throttles without much hesitation.

5. The adjust the high screw while the machine is in the high speed position until it peeks then back off 1/8 turn. :Wavey:

If you can't get it to run properly then post again explaining the problem.