Raider Pro 250 (single-seat / double-seat): Service Manual EEC Version: 1.0 Oct.. 2004
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3.8.5 Automatic Fuel Cup
No smokes or fires!
Inspection of Automatic Fuel Cup
a. Stop the engine and pull out the fuel tube from the carburetor;
b Drain out all the remaining fuel in the fuel cup and tube (5-10cc);
c. .If the fuel stops flowing, the fuel cup is normal;
If the fuel continues to flow out, the negative pressure tube is clogged.
Inspection of Negative Pressure Tube
a. Pull out the negative pressure tube from the air intake pipe and suck
with mouth to produce the negative pressure on the vacuum film;
b. If when the vacuum film produces the negative pressure, the fuel
flows out of the fuel tube; and When the negative pressure stops, the fuel stops flowing, the
automatic fuel cup is normal; otherwise ,it is abnormal;
c. If the automatic fuel cup is abnormal, firstly check if the negative pressure tube is clogged, and
clean it at once; then blow the film from the air intake pipe of the automatic fuel cup.
3.8.6 Automatic Side-circuit Starter
Inspection of Automatic Side-circuit Starter
a. Check the conduction of all the automatic side-circuit starter wires;
Standard Resistance Value: below 10
Ω
(10 minutes after the engine stops)
b. Replace the automatic choke if the resistance value exceeds the standard value;
Inspection of Automatic Choke
a. Connect a tube with the fuel-adding line of the carburetor;
b. Connect the yellow wire of the choke with the b electrode;
Connect the green wire of the choke with the battery – electrode;
Blow the choke with mouth 5 minutes later;
If the air doesn’t go smoothly, it is normal;
c. Remove the automatic choke wire from the battery;
Blow the choke with mouth 30 minutes later;
If the air goes smoothly, it is normal.
3.8.7 Inspection Of Fuel Level
a. Check the fuel level of the main jet;
Standard Fuel Level: 18.5+/-1.0mm
b. Check the float and assemble the float fuel tube.
3.8.8 Adjustment of Idle Speed
a. Start the engine and warm up for several minutes;
b. Fasten the fuel adjusting screw fully and turn back the standard
1~ 3/4 turns;
c. Adjust the fuel adjusting screw to the specified idle speed;