Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | Next revision Both sides next revision | ||
|
techtalk:ih:engctl01c [2018/09/17 15:09] hippysmack [Prestolite Electronic Ignition System] |
techtalk:ih:engctl01c [2021/06/24 01:03] hippysmack [Prestolite Electronic Ignition System] |
||
|---|---|---|---|
| Line 7: | Line 7: | ||
| |{{:techtalk:ih:engctl:prestolite_ignition_by_joshstrange2.jpg?direct&400|}} ((photo by joshstrange2 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1995856))| | |{{:techtalk:ih:engctl:prestolite_ignition_by_joshstrange2.jpg?direct&400|}} ((photo by joshstrange2 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1995856))| | ||
| - | * **In November of 1978**, the MoCo issued a few recommendations to dealers to handle issues with the leaned out condition related to this new ignition system. Motorcycles operate with leaner air/fuel mixtures and are more sensitive to carburetor mixture settings / ignition spark. ((HD Service Bulletin #M-739 dated November 3, 1978)) | + | * **In November of 1978**, the MoCo issued a few recommendations to dealers to handle issues with the leaned out condition related to this new ignition system. Motorcycles operate with leaner air/fuel mixtures and are more sensitive to carburetor mixture settings / ignition spark. ((HD Service Bulletin #M-739 dated November 3, 1978)) |
| - | * This involves checking the [[techtalk:ih:carb02#lean_condition_adjustments_from_the_moco_1979|carburetor / manifold for leaks]] and insuring that the air cleaner backing plate has a tight connection. Corrective measures regarding the ignition on 1100, 1200 and 1340cc engines include: ((HD Service Bulletin #M-739 dated November 3, 1978)) | + | * This involves checking the carburetor / manifold for leaks and insuring that the air cleaner backing plate has a tight connection. Corrective measures regarding the ignition on 1100, 1200 and 1340cc engines include: ((HD Service Bulletin #M-739 dated November 3, 1978)) See also [[techtalk:ih:carb01r#running_lean|Running Lean]] in the Sportsterpedia. |
| * Checking that the spark plugs, cables, boots and wiring connections are in good condition. If irregular running or spitting persists after making previously suggested checks, the spark plug gap should be increased to .060". This has been found to improve engine combustion in some cases. ((HD Service Bulletin #M-739 dated November 3, 1978)) | * Checking that the spark plugs, cables, boots and wiring connections are in good condition. If irregular running or spitting persists after making previously suggested checks, the spark plug gap should be increased to .060". This has been found to improve engine combustion in some cases. ((HD Service Bulletin #M-739 dated November 3, 1978)) | ||
| * Make sure the ignition timer air gap is set as close as possible to the lower limit. Use a .004" feeler gauge to set clearance between the sensor and the trigger lobes per the FSM. Check both lobes to be sure they do not touch the sensor body. Review the FSM ignition section for other possible ignition system faults. ((HD Service Bulletin #M-739 dated November 3, 1978)) | * Make sure the ignition timer air gap is set as close as possible to the lower limit. Use a .004" feeler gauge to set clearance between the sensor and the trigger lobes per the FSM. Check both lobes to be sure they do not touch the sensor body. Review the FSM ignition section for other possible ignition system faults. ((HD Service Bulletin #M-739 dated November 3, 1978)) | ||
