Wacker Neuson WM 80 User Manual

Carburetor Troubleshooting WM 80 Repair
102 wc_tx000522gb.fm
9.2 Troubleshooting Tillotson and Bing Carburetors
Problem Probable Cause Remedy
Engine floods. Defective or missing fuel filter
allowing dirt to enter carburetor
Install a new fuel filter.
Inlet needle sticking Check spring tension and axle
point.
Dirt or gum formations prevent-
ing the inlet needle from sealing
Remove and clean the carbure-
tor.
Inlet control lever set Adjust inlet control lever.
Control lever spring not seated
on lever
Remove and either replace or
reinstall the control lever.
Diaphragm installed incorrectly Correct diaphragm installation.
Engine will not
accelerate.
Idle mixture is too lean. Adjust idle mixture.
Diaphragm cover plate loose;
air leak
Check and tighten the cover
plate.
Inlet control lever is set incor-
rectly.
Correct the lever adjustment.
Main fuel discharge nozzle
plugged
Clean the carburetor or blow it
out with compressed air.
Control diaphragm punctured Replace the diaphragm.
Engine will not
idle.
Idle speed incorrectly adjusted Reset the idle speed.
Throttle not fully returning to idle Adjust throttle cable and inspect
the throttle shaft for sticking.
Throttle plate cocked in the bore
causing fast idle
Reposition throttle plate.
Idle discharge ports plugged Clean the carburetor or blow it
out with compressed air.
Inlet control lever incorrectly set Readjust the inlet control lever.
Inlet needle not seating Clean and/or replace the inlet
needle.

Wacker Neuson WM 80 Specifications

General

Brand	Wacker Neuson
Model	WM 80
Category	Engine
Language	English