Troubleshooting your Kat:

Troubleshooting your Kat:
Engine will not start, or is hard to start:

1. Plugs not sparking

a. Fouled or defective plugs - clean or replace
b. Wet plugs - clean and dry
c. Defective ignition coil - replace
d. Open or short in plug wires - replace
e. Defective signal generator or ignition unit - replace

2. No fuel reaching the carburetors

a. Clogged fuel tank vent hose - clean or replace
b. Clogged or defective fuel valve - clean or replace
c. Defective carburetor float valve - replace
d. Clogged fuel hose or fuel filter - clean or replace
e. Bad fuel - drain tank and carb bowls. refill with known good gas and attempt start with fuel valve set to the PRI position.

Carb internals:

a. Starter jet is clogged - Clean.
b. Starter pipe is clogged - Clean.
c. Air leaking from a joint and carburetor - Check starter body and carburetor for tighteness, adjust and replace gasket.
d. Air leaking from carburetor's joint or vacuum gauge joint. - check and adjust.
e. Starter plunger is not operating properly - check and adjust (cable could be broken)

Idling or low-speed trouble.

a. Pilot jet, pilot air are clogged or loose - check and clean
b. Air leaking from carburetor's joint, vacuum gage joint, or starter - check and adjust
c. Pilot outlet or bypass is clogged - check and clean
d. Starter plunger is not fully closed - check and adjust
e. Idle stop screw set incorrectly - check and adjust.