|
Symptom
|
Remedy
|
|
Fuel comes out of vent tube or runs out
|
A) Lower float level
B) Decrease fuel pressure
C) Remove, clean/replace needle-&-seat
D) Inspect float to ensure it's moving freely
|
| |
|
Backfires or Pops through carburetor
|
A) Open idle-mixture screws
B) Increase squirter size
C) Increase jet size
D) Raise float level
|
| |
|
Backfires or Pops through exhaust
|
A) Lower float level
B) Decrease fuel pressure
C) Decrease jet size
D) Readjust butterfly position, primary & secondary
|
| |
|
Engine won't start
|
A) Prime carburetor with fuel
B) Pump squirters to get fuel flowing
C) Check ignition timing
|
| |
|
Fuel leaks from throttle shafts
|
A) Lower float level
B) Decrease fuel pressure
C) Readjust butterfly position, primary & secondary
|
| |
|
Is rich at idle
|
A) Increase initial timing
B) Go in on mixture screws
C) Readjust butterfly positions
D) Lower float level
E) Decrease fuel pressure
|
| |
|
Stumbles under light acceleration
|
A) Open mixture screws
B) Readjust butterfly positions
C) Raise float level
|
| |
|
Stumbles under hard acceleration
|
A) Readjust butterfly position
B) Increase squirter size
|
| |
|
Won't return to idle
|
A) Increase initial timing
B) Readjust butterflies
|
| |
|
Surges at part throttle
|
A) Open idle-mixture screws
B) Open primary butterflies & close secondary
C) Raise float level
D) Increase jet size
|
| |
|
Emits black smoke under hard acceleration
|
A) Lower float level
B) Decrease fuel pressure
C) Decrease jet size
|
