YARDMAX R210-S User Manual

Gasoling Engine Power Output Insufficiency
TROUBLE CAUSE REMEDY
Fuel supply system
1.
Air in fuel line or fuel line clogged
2. Main oil flow hole is not adjusted properly
1. Exhaust air or dredge fuel line
3. In carburetor, needle valve hole and main
2. Readjust
oil flow hole clogged
3. Clean and biow to get through
4. Fuel cock is clogged up
4. Clean, replace damaged
part
5. Too much carbon deposit in com busting
5. Clear away
chamber
6. Clear away
When increasing
6. Too much car bon fouling in muffler and
throttle, speed
7. Clean air cleaner filter element
increase slow
or even
exhaust pipe.
8. Repair or replace
decrease and stop
7.
Air cleaner is clogged up
running
8. Intake pipe is leaking
Poor compression
1. Piston
or cylinder or piston ring is worn
1. Replace the worn
2. Air leakage from the surface by which
2. Replace the cylinder gasket
cylinder block contacting with cylinder
3. Readjust
head.
3. Too big
or too small valve clearance
4. Repair
4. Valve tightness is poor
Gasoline Engine Gan not Running Smoothly
TROUBLE CAUSE REMEDY
1. Piston, cylinder or piston ring is worn
excessively
1. Replace the worn
2. Piston pin and piston pin hole are won
2. Replace piston or piston pin
Knocking sound
excessive
3. Tie rod small head is worn excessively
3. Replace tie rod
4. Roller bearing for crankshaft main shaft is
4. Replace roller bearing
worn
1. Engine is too hot
2. Too much carbon deposit in combustion
1. Shoot trouble
Abnormal
combustion
chamber
2. Clear away
3. Improper gasoline brand or low gasoline 3. Replace with qualified gasoline
quality
1. There is water in float chamber 1. Clean
Spark lacking
2. Improper spark plug electrodes clearance 2. Adjust
3. Something wrong with induced coil, and so on 3. Check and replace damaged parts
17 I Troubleshooting

YARDMAX R210-S Specifications

General

Brand	YARDMAX
Model	R210-S
Category	Engine
Language	English