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techtalk:ih:engctl01f [2018/05/29 04:10]
hippysmack [Revised timing marks starting with 1980 models]
techtalk:ih:engctl01f [2023/03/15 00:42]
hippysmack [Pics and information on Ironhead Coils and Bracketry]
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-====== IH: Engine Control - Sub-01D ====== +====== IH: Engine Control - Sub-01F ====== 
-====== ​Revised timing marks starting with 1980 models ​======+====== ​Pics and information on Ironhead Coils and Bracketry ​======
  
-  * The timing marks have been revised on all 1980 and later 1000cc (crankcase number 780-108-001 and up) and 1340cc models to enable the timing to be set electronically at the factory. This step will reduce the number of timing adjustments required during pre-delivery and set-up. The procedure used to set the timing is exactly the same.  +1965-1966 XLH had 12v coil mounted on two holed boss under the seat casting on the right side of the bike with an angled plate (31727-65holding ​the coil on\\
-  * Only the timing marks have changed. The front cylinder advance timing mark has changed from straight line to 1/8" dot and the rear cylinder advanced timing mark now represented by a lazy eight. +
-  * Revised timing marks: +
-    * A straight line for the front cylinder (top dead center). +
-    * An 1/8" drilled dot for the front cylinder ​(full advance)+
-    * A lazy eight {{:​techtalk:​ih:​engctl:​lazy_eight_icon.jpg?​direct&​50|}} for the rear cylinder (full advance).+
  
 +{{:​techtalk:​ih:​engctl:​coil-cover_mounting_studs_1955-1966_upper_and_lower_by_moon_wolf.jpg?​direct&​300|}} ((photo by Moon Wolf of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1062720&​page=17)) \\
 +\\
 +
 +1970-1972 XLH, XLCH coil moved on top front of the rear fender using a lengthened seat post retaining bracket (51526-52A). \\
 +The -52A bracket was also sold as replacement for 1965-1969 XLH models. \\
 +
 +{{:​techtalk:​ih:​engctl:​1970-1972_xlh_xlch_coil_mount_bracket_51526-52a_by_tomscybershop.jpg?​direct&​300|}} ((photo courtesy of TomsCyberShop.com www.TomsCyberShop.com)) {{techtalk:​ih:​engctl:​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]] )) {{:​techtalk:​ih:​body:​key_switch_and_coil_-_1971_xlch_w_buddy_seat_pic2_by_the_doctor_71.jpg?​direct&​300|}} ((photo by The Doctor 71 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2000541)) \\
  
 \\ \\
  
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