The ABCs of Carburetion
UM-900 (1959)
Page 16 of 19
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TROUBLE SHOOTING TIPS Continued
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3. Does the plunger vent ball seat properly?
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4. Do the ball checks or valves leak?
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4. Are the pump
channels free of dirt or obstruction?
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CHOKE SYSTEM
(hard starting, rough idle, stalling)
1. Check fast
idle adjustment.
2. Check vacuum
and heat connections.
3. Check choke
cover indexing setting.
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5. Does the power piston move freely?
PUMP SYSTEM
(hesitation)
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4. Is the choke valve free?
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1.
Is the purnp leather
hardened or distorted?
2. Do the inlet or outlet valves leak?
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5. Is the choke piston free of dirt or carbon?
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16
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