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Warren
Sidney Russell
AQA
Description |
Problem |
Solution |
Engine will not start
|
Out of fuel |
Fill fuel tank |
Improper or contaminated fuel |
Replace fuel |
|
Glow starter not charged |
Charge glow starter |
|
Glow plug bad |
Replace glow plug, see "Glow Plug Problems" |
|
Engine flooded |
See " flooding" section. |
|
Engine overheating |
Allow engine to cool, richen fuel mixture, check airflow |
|
Carburetor incorrectly adjusted |
Readjust carburetor |
|
Exhaust blocked |
Clean exhaust system |
|
Air cleaner blocked |
Clean air filter |
|
Starter will not pull
|
Engine is flooded |
Clear excess fuel, see "flooding" Section. |
Rope is jammed |
Repair starter. |
|
Engine seized |
Examine engine for damage. |
|
Engine starts and
then stalls
|
Idle speed set too low |
Increase idle speed. |
Air bubbles in fuel line |
Check for holes in the fuel line. |
|
Glow plug is fouled |
Replace glow plug, see "Glow Plug Problem" section. |
|
Engine is overheated |
Allow engine to cool, richen fuel Mixture, check airflow |
|
Insufficient fuel tank pressure |
Replace pressure hose- clear |
|
Blockage at exhaust header fitting |
Check flow to and from the tank. |
|
Engine sluggish /
poor performance
|
High-speed fuel mixture is too rich |
Set high-speed mixture to a leaner setting |
Leaking glow plug |
Check glow plug gasket |
|
Fuel bad or contaminated |
Replace fuel |
|
Carburetor dirty or blocked |
Clean Carburetor |
|
Engine overheating |
Stop the engine- find the cause |
|
Engine over geared for application |
Use a lower gear ratio |
|
Clutch slipping |
Replace clutch shoes |
|
Bound up drive train |
Find the bound item and repair |
|
Engine overheats
|
High-speed fuel mixture is too lean |
Richen high-speed mixture |
Cooling air is being blocked |
Get air to the head |
|
Excessive nitro in the fuel |
Use fuel with lower nitro |
|
Excessive load on the engine |
Check for bound up drive train |
|
Low-speed mixture too lean |
Richen low-speed mixture |
|
Engine hesitates or
stumbles
|
High-speed mixture too lean |
Richen high-speed mixture. |
Low-speed mixture too rich |
Lean low-speed mixture. |
|
Engine overheated |
Stop the engine and find the cause. |
|
Air bubbles in fuel line |
Check for holes in fuel line. |
|
Glow plug fouled |
Test or replace plug |
|
Engine stalls instantly
when throttle is fully
opened from idle |
Glow plug fouled |
Replace glow plug. |
Low-speed mixture too lean |
Richen low-speed mixture. |
|
High-speed mixture too rich |
Lean high-speed mixture. |
|
Engine stalls while
driving around turns
|
Fuel level is low |
Add fuel |
Idle speed set too low |
Increase idle speed. |
AQA