Lean Troubleshooting

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Pope

Well-Known Member
Messages
3,442
Location
Columbus Ohio
Here is a checklist for things that can cause your truck to run lean.

1)Your motor is just tuned to lean
2)Head screws are loose
3)Gasket on backplate is bad
4)HSN is loose
5)Carb is not seated properly
6)O ring around carb is bad
7)O rings on carb pinch bolt are bad
8)air leak between plastic and metal end of carb
9)front engine bearing is bad
10)Kink or Hole in fuel lines
11)crack in fuel tank
12)O ring around top of fuel tank is bad
13)Fuel pickup in tank cloged
14)Fuel filters cloged
15)O ring on fuel filters bad
16)pressure nipples on tank and/or pipe clogged
17)Exsust gaskets bad

If anyone has another thing to add please do.

I know that some of these are very unlikely to occure but I put them on the list just incase. Better to check and have them be fine than to blow your motor up.
 

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