EH12, EH17, EH25 - Small Engine Discount
EH12, EH17, EH25 - Small Engine Discount
EH12, EH17, EH25 - Small Engine Discount
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10-5 ENGINE KNOCKS<br />
(1) Poor quality gasoline.<br />
(2) <strong>Engine</strong> operating under heavy load at low speed.<br />
B (3) Carbon or lead deposits in the cylinder head.<br />
(4) Spark timing incorrect.<br />
(5) Loose connecting rod bearing due to wear.<br />
(6) Loose piston pin due to wear.<br />
(7) Cuases of engine overheat.<br />
10-6 ENGINE BACKFIRES THROUGH CARBURETOR<br />
(1) Water or dirt in gasoline, or low-grade gasoline.<br />
(2) Intake valve stuck.<br />
(3) Valves overheated, or hot carbon particles in the combustion chamber.<br />
(4) <strong>Engine</strong> cold.<br />
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