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| techtalk:ih:carb01g [2019/09/15 04:18] – [Intake Leaks] hippysmack | techtalk:ih:carb01g [2023/12/28 23:55] (current) – hippysmack | ||
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| - | ====== IH: Carburetor, Intake Manifold & Exhaust | + | ====== IH: Carburetor, Intake Manifold & Exhaust - Sub-01G ====== |
| \\ | \\ | ||
| ====== Tillotson Carb Functions, Adjustments, | ====== Tillotson Carb Functions, Adjustments, | ||
| + | See also in the Sportsterpedia: | ||
| + | * [[techtalk: | ||
| + | * [[techtalk: | ||
| + | * [[techtalk: | ||
| ===== Tickler ===== | ===== Tickler ===== | ||
| A tickler is any device that is inserted into the bottom hole to ' | A tickler is any device that is inserted into the bottom hole to ' | ||
| - | With the advent off Ethanol, fuel seems to evaporate faster. ((Monte03 of the XLFORUM | + | With the advent off Ethanol, fuel seems to evaporate faster. ((Monte03 of the XLFORUM |
| By ' | By ' | ||
| Now when you twist the throttle you will get a clean shot of fuel into the intake. \\ | Now when you twist the throttle you will get a clean shot of fuel into the intake. \\ | ||
| - | The Tillotson carburetor runs great, once started. \\ But even with electric start, when cold, it sometimes takes quite a bit of cranking to get it going. ((rgmax of the XLFORUM | + | The Tillotson carburetor runs great, once started. \\ But even with electric start, when cold, it sometimes takes quite a bit of cranking to get it going. ((rgmax of the XLFORUM |
| Sometimes sometimes twenty kicks later, no start. When warm it sometimes takes 3-4 seconds of cranking to start which still seemed too long. \\ | Sometimes sometimes twenty kicks later, no start. When warm it sometimes takes 3-4 seconds of cranking to start which still seemed too long. \\ | ||
| (even with the carb rebuilt, timing, plugs and valve adjustment all spot on) \\ | (even with the carb rebuilt, timing, plugs and valve adjustment all spot on) \\ | ||
| Line 27: | Line 31: | ||
| This was made by S&D installed on a HD2D model. \\ | This was made by S&D installed on a HD2D model. \\ | ||
| - | {{: | + | {{: |
| - | {{: | + | {{: |
| Since vintage ticklers are now pretty much unobtainable, | Since vintage ticklers are now pretty much unobtainable, | ||
| This is an original Tillotson on a 1969 XLH. \\ | This is an original Tillotson on a 1969 XLH. \\ | ||
| - | {{: | + | {{: |
| ===== Testing and Repair Checklist ===== | ===== Testing and Repair Checklist ===== | ||
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| - Inspect the inlet needle lever for correct adjustment. It should be flush with the surrounding floor of the carb body. If not equipped with a shackled needle, replace with kit (27588-66). Torque seat to 45 in-lbs. | - Inspect the inlet needle lever for correct adjustment. It should be flush with the surrounding floor of the carb body. If not equipped with a shackled needle, replace with kit (27588-66). Torque seat to 45 in-lbs. | ||
| - Test the economizer ball check for leakage and correct operation. Using the hose end of tool (96960-68), place it over the economizer welch plug hole so that it seals off the surrounding area. With alternate pressure and vacuum applied by mouth, ball check should release and seal. Replace any defective parts. \\ | - Test the economizer ball check for leakage and correct operation. Using the hose end of tool (96960-68), place it over the economizer welch plug hole so that it seals off the surrounding area. With alternate pressure and vacuum applied by mouth, ball check should release and seal. Replace any defective parts. \\ | ||
| - | |||
| - | ---- | ||
| - | |||
| - | \\ | ||
| ===== Welch Plug or Expansion Plug ===== | ===== Welch Plug or Expansion Plug ===== | ||
| Line 77: | Line 78: | ||
| * The plug should be seated | * The plug should be seated | ||
| * Installation Recommendations from Hubbard Spring [[http:// | * Installation Recommendations from Hubbard Spring [[http:// | ||
| - | * Some Welch Plug dims: [[http:// | + | * Some Welch Plug dims: [[http:// |
| - | ]] | + | |
| [[: | [[: | ||
| Line 84: | Line 84: | ||
| ===== Intake Leaks ===== | ===== Intake Leaks ===== | ||
| Finding and Fixing the Cause of the Degradation That Leads to Intake Leaks: \\ | Finding and Fixing the Cause of the Degradation That Leads to Intake Leaks: \\ | ||
| - | Article by Dr Dick of the XLFORUM ((http:// | + | Article by Dr Dick of the XLFORUM ((https://www.xlforum.net/ |
| * Leaks will develop over time. While diagnosing, you're doing the seemingly most logical thing by focusing on the seals & clamps. But, you may not be seeing the obvious. If your tire kept leaking after you fixed the inner tube, time after time, you would start thinking that a bigger patch would work better than the last one you used as well as start looking for nails in the drive way. Same thing here. | * Leaks will develop over time. While diagnosing, you're doing the seemingly most logical thing by focusing on the seals & clamps. But, you may not be seeing the obvious. If your tire kept leaking after you fixed the inner tube, time after time, you would start thinking that a bigger patch would work better than the last one you used as well as start looking for nails in the drive way. Same thing here. | ||
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| ===== Links,Parts and Services for Tillotson Carbs ===== | ===== Links,Parts and Services for Tillotson Carbs ===== | ||
| - | Original P/N for a Sporty Tillotson repair parts kit 27147-66 ((rivethog of the XLFORUM | + | Original P/N for a Sporty Tillotson repair parts kit 27147-66 ((rivethog of the XLFORUM |
| Original P/N for a Big Twin Tillotson repai parts kit 27137-66 \\ | Original P/N for a Big Twin Tillotson repai parts kit 27137-66 \\ | ||
