2-40
INSP
ADJ
Troubleshooting
Remedy
Replace the main jet with the next smaller
size.
Replace the main jet with the next larger size.
Replace the piston and spark plug.
Tune the carburetors again. Begin with low-
speed tuning.
Check the piston for holes or seizure.
Check the cooling system, gasoline octane
rating and ignition timing. After replacing
the spark plug with a colder type, tune the
carburetors again. Begin with low-speed
tuning.
Diagnosis
Carburetors are tuned
properly.
Mixture is too rich.
Mixture is too lean.
Mixture is too lean. The
piston is damaged or seized.
Mixture is too lean. The
spark plug melted.
Main jet selection chart
Spark plug color
Light tan or gray
Dry black or fluffy
deposits
White or light gray
White or gray insulator
with small black or
grayish brown spots
and electrodes having
a bluish-burnt
appearance
Melted electrodes and
possibly a blistered
insulator
Metallic deposits on
insulator
CARBURETOR TUNING
Trouble
Hard starting
Poor idling:
•
Poor performance at
low speeds
•
Poor acceleration
•
Slow response to
throttle
•
Engine tends to stall
Diagnosis
Insufficient fuel
Excessive use of the
starter or choke
Fuel passage is clogged
or frozen
Overflow
Improper idling speed
adjustment
Damaged pilot screw
Clogged bypass hole
Clogged or loose pilot
jet
Air leaking into the
carburetor joint
Defective starter valve
seat
Overflow
Adjustment
Add gasoline.
Return the starter lever to its seated position so that
the starter valve is fully closed.
•
Check and, if necessary, clean the fuel tank air vent,
the fuel filter and all of the fuel passages.
•
Check and, if necessary, clean the carburetor air
vents, fuel passages and the float valve.
•
Clean the float chamber of any ice or water.
Adjust the fuel level.
Adjust the engine idle speed.
Refer to “Low speed tuning”.
Replace the pilot screw.
Clean the bypass hole.
•
Remove the pilot jet, clean it with compressed air and
then install it.
•
Make sure that the pilot jet is fully tightened.
Retighten the clamp screws on the carburetor joints.
Clean or replace the starter valve seat.
Adjust the fuel level.
Summary of Contents for SRX700D
Page 1: ...SRX700D SRX700SD SERVICE MANUAL MANUEL D ATELIER INSTRUKTIONSBOK 8DN 28197 J0 981036 ...
Page 2: ......
Page 8: ......
Page 21: ......
Page 71: ...2 18 INSP ADJ ...
Page 110: ...2 37 INSP ADJ Guide for carburetion CARBURETOR TUNING SDN2780 ...
Page 139: ...2 50 INSP ADJ ...
Page 369: ...8 4 ELEC ...
Page 399: ...8 17 ELEC ...
Page 411: ...8 22 ELEC ...
Page 480: ...SPEC 9 19 I H D 30 B A 0 9 8 7 6 5 4 3 2 1 G F C E CABLE ROUTING SDN9130 ...
Page 482: ...SPEC 9 20 CABLE ROUTING SDN9140 ...
Page 484: ...SPEC 9 21 CABLE ROUTING SDN9145 ...
Page 486: ...SPEC 9 22 CABLE ROUTING SDN9150 ...
Page 488: ...SPEC 9 23 CABLE ROUTING SDN9160 ...
Page 490: ...SPEC 9 24 CABLE ROUTING SDN9170 ...
Page 492: ...SPEC 9 25 CABLE ROUTING SDN9180 ...
Page 496: ......