Differences

This shows you the differences between two versions of the page.

--- techtalk:ref:carb04 [2018/11/05 16:47]
hippysmack [Drilling a Hole in the Baffle]
+++ techtalk:ref:carb04 [2024/01/11 01:43]
hippysmack
@@ Line 1: / Line 1: @@
 [[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]]
 ====== REF: Carburetor, Intake Manifold & Exhaust ======
+====== Exhaust Leaks ======
+You can put your hand near the pipes at likely places for leaks (exhaust ports, any joints) and see if you can feel air escaping. ((Folkie of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-intake-and-exhaust/sportster-motorcycle-air-intake-carburetor-efi-fuel-and-exhaust/118650-exhaust-port-gaskets-installation-tricks?highlight=stethoscope#post3727356)) \\
+But, be careful not to burn yourself on the pipes.
+===== Smoke Test =====
+When oil is added to the combustion chamber, the result is smoke coming out of the exhaust. \\
+The oil burns and comes out as smoke. ((Folkie of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-intake-and-exhaust/sportster-motorcycle-air-intake-carburetor-efi-fuel-and-exhaust/118650-exhaust-port-gaskets-installation-tricks?highlight=stethoscope#post3727356)) \\
+The smoke should just come out the ends of the mufflers. \\
+If smoke is coming out anywhere else, that's where your leak is. \\
+Test one cylinder at a time. \\
+  - Pull a spark plug.
+  - Add a spoonful of standard motor oil in the cylinder.
+  - Reinstall the plug.
+  - Fire up the engine.
+  - When it starts to smoke put a rag in the exhaust pipe and look for leaks.  It helps if you have a buddy hold the rag
@@ Line 8: / Line 25: @@
 ===== Drilling a Hole in the Baffle =====
 A lot of people drill the baffle plug out of the standard mufflers. \\
-But it can create tuning issues due to "wave reversion". problems. ((gronk62 of the XLFORUM http://xlforum.net/forums/showthread.php?t=16948)) \\
+But, use at your own risk. \\
-Use at your own risk. \\
+__Issues with doing this mod include__; \\
+**Tuning**: \\
+It can create tuning issues due to "wave reversion". problems. ((gronk62 of the XLFORUM http://xlforum.net/forums/showthread.php?t=16948)) \\
+**Unwanted noise**: \\
 Some say it will make a chirping sound if you drill the whole baffle plug out. \\
-Others say it will only make the whistling / chirping sound if you take the whole 1-1/4" inch baffle plug out. \\
+Others say it will only make the whistling / chirping sound if you take the whole 1-1/4" inch baffle plug out. ((Don Burton http://xlforum.net/forums/showthread.php?t=1392884&page=2)) \\
-And a 3/4" hole through it won't make that sound. ((AsSeenOnTV http://xlforum.net/forums/showthread.php?t=1392884))
+And a 3/4" hole through it won't make that sound. ((AsSeenOnTV http://xlforum.net/forums/showthread.php?t=1392884)) \\
+**Overall sound**: \\
+Reportedly, the bike should sound better than the stock. \\
+This mod adds volume, and more low end 'sound' than the stock version. ((AsSeenOnTV http://xlforum.net/forums/showthread.php?t=1392884))
+**Failed inspections**: \\
+Once the muffler baffles are drilled, it can easily be detected that you have 'tampered' with them. \\
+Depending on where you live, your bike may not pass inspection due to this mod. ((AsSeenOnTV http://xlforum.net/forums/showthread.php?t=1392884)) \\
-This was done with a 3/4" hole saw on a 10" drill extension. \\
+This was done with a 3/4" hole saw on a 10" drill extension. ((AsSeenOnTV http://xlforum.net/forums/showthread.php?t=1392884)) \\
 |If exhaust is installed, make sure the set screw in the extension is tight so you don't drop the hole saw inside it. ((photos by bboerst31 of the XLFORUM http://xlforum.net/forums/showthread.php?t=792768))  ||
@@ Line 170: / Line 198: @@
 They give some bottom and mid range back as well as help to smooth out the sound. ((thesavageone33 of the XLFORUM http://xlforum.net/forums/showthread.php?p=4990236)) \\
+|{{:techtalk:ref:carb:torque_cones_by_biknut.jpg?direct&300|}}|
+|  Torque Cones ((photo by biknut of the XLFORUM http://xlforum.net/forums/showthread.php?t=643292))  |
 ====== Lollipops ======
+{{ :techtalk:ref:carb:lollipop_drawing_by_shotgun46.jpg?direct&200|}} ((drawing by shotgun46 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1552356&page=2)) \\
   *  A "Lollipop" is a cheap simple way of achieving back pressure on the pipes and creating anti-reversion.
@@ Line 182: / Line 211: @@
+|  Thunder Monsters (fancy lollipops) ((photo by biknut of the XLFORUM http://xlforum.net/forums/showthread.php?t=643292))  |
+|{{:techtalk:ref:carb:thunder_monsters_by_biknut.jpg?direct&300|}}|
@@ Line 265: / Line 295: @@
 |Washer welded to 1/4" bolt w/ bolt inserted into washer((photo by rooster77 of the XLFORUM))|Eyebolt ((photo by xllent01 of the XLFORUM))||
+====== Patriot Defender ======
+Dims: ((rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?p=5737508)) \\
+-3/4" diameter out of the heads. \\
+Out to 2". \\
+Then 2-1/4" to the collector. \\
+The collector is probably 2-1/2" in a megaphone configuration. \\
+|  Patriot Defender Pipes Pics and Dims. ((photos by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?p=5737508))  |||
+|{{:techtalk:ref:carb:patriot_defender_pics_and_dims_1_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:carb:patriot_defender_pics_and_dims_2_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:carb:patriot_defender_pics_and_dims_3_by_rocketmangb.jpg?direct&300|}}|
+|  Patriot Defender Pipes Pics and Dims. ((photos by rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?p=5737508))  |||
+|{{:techtalk:ref:carb:patriot_defender_pics_and_dims_4_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:carb:patriot_defender_pics_and_dims_5_by_rocketmangb.jpg?direct&300|}}|{{:techtalk:ref:carb:patriot_defender_pics_and_dims_6_by_rocketmangb.jpg?direct&300|}}|
 [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]]
+====== Exhaust Bracket Mods ======
+Exhaust brackets can be fabricated to fit just about any configuration needed. \\
+(especially when using aftermarket pipes) \\
+Mount the pipes to the heads with proper torque. \\ Allow them to **gently** sit on their own. \\
+This allows for vertical and horizontal measurements to be taken from the point where the mount mates to the pipes. \\
+Below is the bracket that comes with the purchase of a set of Thunderheaders. \\
+This particular bracket was slightly too low and recessed to fit on a 98 1250. \\
+(it may have been fine for stock 1200 heads) \\
+The plate on the bracket was cut into and another plate was welded to it to extend the mounting holes. \\
+With the extra plate simply welded on top of the original one, the height worked out as well. \\
+|  Thunderheader bracket mod. ((photos by Hippysmack))  |||
+|{{:techtalk:ref:carb:thunderheader_bracket_mod_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:carb:thunderheader_bracket_mod_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:carb:thunderheader_bracket_mod_1_by_hippysmack.jpg?direct&300|}}|
+|{{:techtalk:ref:carb:thunderheader_bracket_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:carb:thunderheader_bracket_6_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:carb:thunderheader_bracket_7_by_hippysmack.jpg?direct&300|}}|
 \\

Trace:

Differences

Navigation

Search

Toolbox