HOW TO START THE ARROW AND THE SCOUT
Reports from the field indicate that some difficulty is being experienced in starting the 149-249 models when the temperature is low and the engines are cold. We find that when the procedure outlined below is followed, the engine will start right away.
A) Open the gas tank petcock (make sure there is gas in the right side of the tank). When the gas is low, it can be seen in the left side of the tank but the right may be dry. Lean the machine to the right, to allow the gas to flow across the partition between the two sides.
B) Turn the switch key to the “on” position.
C) Close the air cleaner cover or choke. (Be sure to convert the air cleaner and choke, as explained in Service Shot No. 219.)
D) Raise the gas level in the carburetor by pushing down the button on the top of the carburetor bowl.
E) Straighten the machine up off the jiffy stand and lean slightly to the right. (This raises the gas level in the carburetor body so it can be drawn up instantly.)
F) Whip the throttle open and close three or four times. (This action pumps gas into the venturi.)
G) Open the throttle just enough to raise the metering pin off the idle mixture seat, or approximately 1/4″ movement of the grip. (Be sure the slack is “taken up” in the throttle cable by making an adjustment at the top of the carburetor.) When the throttle is just opened slightly, the manifold vacuum or suction is great. This draws gas into the combustion chamber instantly, ignites, and the engine starts right away. Now press down firmly on the kickstarter.
H) When the engine starts, let it run at a fast idle until the manifold warms up and the engine takes the throttle without spitting back.
I) If the engine runs a few revolutions and stalls, it will be necessary to repeat steps D, E, F, G and H.
In case the engine does not start and continue to run properly after this procedure is followed, then it may be necessary to make one or more of the following inspections:
I. INSPECT FOR SPARK AT THE SPARK PLUG WIRE:
A) Remove the wire, wedge wire between spark plug porcelain and cylinder head fin and adjust so the wire terminal is approximately 3/16″ away from the fin.
B) Kick the engine over; if spark jumps, the magneto is OK. (Check for spark at each spark plug.) If the spark is weak, or if there is no spark. It will be necessary to inspect the magneto.
II. INSPECT THE MAGNETO:
A) Remove magneto cover.
B) Inspect contact points and wipe clean. (Excess oil from cam wiping felt gets on points.)
C) Check contact point gap – it should be .015″.
D) Inspect coil ground wire – it may be loose or broken. (Some coils are grounded internally and the ground is not visible.)
E) Replace coil if necessary.
F) Check rotor. Be sure spring clip is intact and drive tongue is not broken.
G) Check condenser.
III. INSPECT SPARK PLUGS:
A) Remove spark plug.
B) Attach wire, and lay plug against cylinder head.
C) Kick over engine.
If there is a good hot spark at the wire and none at the spark plug, replacement of spark plug is necessary.
IV. INSPECT CARBURETOR:
A) Remove nozzle holder (as shown on Page C-20 in the 149-249 Manual), clean and check gasoline flow. (After the nozzle bolder is replaced, check idle mixture adjustment as per instructions on Page C-23 in the Service Manual.)
B) Make final adjustment after the manifold warms up.
V. CHECK EACH CYLINDER FOR COMPRESSION:
A) Push against the kickstarter crank slighily; if the pedal gradually works down, compression is leaking by the valve seat.
B) Adjust the valve clearance to .0025″ to .003″ when the weather is normal, and .003″ to .004″ when the weather is below freezing. If the seats are bad, it will be necessary to remove the head and reface the valve and valve seat.
NOTE:
A) Make sure the proper grade of oil is in the oil tank, transmission and primary drive.
B) Use high test gasoline for quick starting and best performance.
Walter Brown
Service Manager
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