Differences
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techtalk:ih:engctl01 [2021/05/20 15:44] hippysmack [Spark Coil] |
techtalk:ih:engctl01 [2023/07/10 21:24] ixl2relax [Battery Ignition (Circuit Breaker/Points/Timer/Distributor)] |
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| * . . . [[techtalk:ih:engctl01a|See more on the Circuit Breaker Ignition System]] \\ | * . . . [[techtalk:ih:engctl01a|See more on the Circuit Breaker Ignition System]] \\ | ||
| - | 57-78 Sportsters (except XLC and XLCH) | + | 57-78 Sportsters (except 58-69 XLC and XLCH) |
| * The circuit breaker ignition system has two circuits; (1)-the primary and (2)-the secondary circuits. ((1959-1964 Sportster 55 OHV FSM pg 5F-1)) | * The circuit breaker ignition system has two circuits; (1)-the primary and (2)-the secondary circuits. ((1959-1964 Sportster 55 OHV FSM pg 5F-1)) | ||
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| **PRECAUTION:** If the engine happens to stop on the 'dwell' part of the cam position lobe, the GROUND thru points will keep power active on the coil if the RUN switch is ON. This means, if you turned the key on (or leave it on), with the RUN switch ON, without starting the engine, the coil will be in constant current saturation and will eventually 'burn up' the internal windings. | **PRECAUTION:** If the engine happens to stop on the 'dwell' part of the cam position lobe, the GROUND thru points will keep power active on the coil if the RUN switch is ON. This means, if you turned the key on (or leave it on), with the RUN switch ON, without starting the engine, the coil will be in constant current saturation and will eventually 'burn up' the internal windings. | ||
| - | + | ||
| + | {{:techtalk:ih:engctl:ignitionsystem-points.jpg?500|}}((Diagram by IXL2Relax)) | ||
| + | |||
| + | (Aftermarket Points/Condenser Kit MC-DR2240X is typical for 71-78 models) | ||
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| + | \\ | ||
| ===== Magneto Ignition System ===== | ===== Magneto Ignition System ===== | ||
| * . . . [[techtalk:ih:engctl01b|See more on the Magneto Ignition System]] \\ | * . . . [[techtalk:ih:engctl01b|See more on the Magneto Ignition System]] \\ | ||
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| |1985 | 31614-83A | | |1985 | 31614-83A | | ||
| - | **Brackets**: \\ | ||
| - | {{:techtalk:ih:elec:coil_mount_bracket_51526-52a_1965-1970_h_1970_ch_by_tomscybershop.jpg?direct&300|}} ((photo courtesy of TomsCyberShop.com www.TomsCyberShop.com)) {{:techtalk:ih:elec:coil_mounting_plate_31727-65_1965-1970_h_1970_ch_by_jrsvintageharley1990.jpg?direct&300|}} ((photo courtesy of Ebay seller, Jrs Vintage Harley 1990, [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]] )) \\ | ||
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| ==== Timing Advance ==== | ==== Timing Advance ==== | ||
| ^ ^Ign. Retard ((57-69 HD Sportster FSM pg 3A-11)) ((70-78 HD Sportster FSM pg 3-1)) ((79-85 HD Sportster FSM pg 3-3))^Ign. Advance^ | ^ ^Ign. Retard ((57-69 HD Sportster FSM pg 3A-11)) ((70-78 HD Sportster FSM pg 3-1)) ((79-85 HD Sportster FSM pg 3-3))^Ign. Advance^ | ||
| - | |**57-70**|15° (5/64") BTDC)|45° (11/16” BTDC)| | + | |**57-71**|15° (5/64") BTDC)|45° (11/16” BTDC)| |
| - | |**71-79**|10° (1/32”) BTDC)|40° (17/32” BTDC)| | + | |**72-79**|10° (1/32”) BTDC)|40° (17/32” BTDC)| |
| |Using Mechanical Advance mechanism = 30° range||| | |Using Mechanical Advance mechanism = 30° range||| | ||
| |Static Timing is set with Flywheel at Full Advance Mark||| | |Static Timing is set with Flywheel at Full Advance Mark||| | ||
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| |**80-82**|8° (BTDC)|26° BTDC - (600-1600 RPM)|40° BTDC) - (above 1600 RPM)| | |**80-82**|8° (BTDC)|26° BTDC - (600-1600 RPM)|40° BTDC) - (above 1600 RPM)| | ||
| ^ ^Startup Advance^Fast Idle Advance^1800-2800 RPM ((79-85 Sportster FSM pg 3-3))^ | ^ ^Startup Advance^Fast Idle Advance^1800-2800 RPM ((79-85 Sportster FSM pg 3-3))^ | ||
| - | |**83-85**|10° (before TDC)|40° (before TDC)|55° (before TDC)| | + | |**83-85**|10° (BTDC)|40° (BTDC)|55° (BTDC)| |
| |Using Electronic Module (computerized) allows calculating a wide range of advance spark timing|||| | |Using Electronic Module (computerized) allows calculating a wide range of advance spark timing|||| | ||
| |Static Timing is set with Flywheel at TDC Mark - Used as a reference to calculate needed advance|||| | |Static Timing is set with Flywheel at TDC Mark - Used as a reference to calculate needed advance|||| | ||
| + | |||
| ==== Points Gap and Trigger Sensor Gap ==== | ==== Points Gap and Trigger Sensor Gap ==== | ||
