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22nd January 2021
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XL FORUM TEAM MEMBER
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Join Date: Jan 2011
Posts: 1,087 Sportster/Buell Model: XLX Sportster/Buell Year: 83 Sportster/Buell Year #2: xlh
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Quote:
Originally Posted by Iron Mike
I see no mention of a valve job itself. If you haven’t re cut the seats to match the new guide axis, more than likely you will not have a proper seal.
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absolutely |
4 Weeks Ago
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XL FORUM TEAM MEMBER
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Join Date: Feb 2009
Location: ny
Posts: 96 Sportster/Buell Model: sportster xlch Sportster/Buell Year: 1970 Sportster/Buell Model #2: sportster xlh Sportster/Buell Year #2: 73 Other Motorcycle Model: sportster Other Motorcycle Year: 2003
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pistons
I have a 73 xlh. There are early and late jugs that year. The early jugs are limited to I believe .030 overbore. Before purchasing the pistons make sure your jugs can cleanup first. Any good machinist can do this.I run Wiseco
pistons with Kibblewhite black diamond valves and springs.Just mentioning this as an option for you.
Last edited by sungod; 4 Weeks Ago at 17:41..
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4 Weeks Ago
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Senior Master Custom Bike Builder
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Join Date: May 2010
Location: Pottstown PA.
Posts: 14,386 Sportster/Buell Model: xlch Sportster/Buell Year: 1960
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sungod makes a good point.the.030 bore limit is a factory spec.i have '72 1000 cylinders that have been bored.040 for 40+yrs in a stroker motor.the same cylinders that were used in the early'73.
__________________
72 1000cc barrels and heads, s&s 41/2'' flywheels, sifton cams, s&s super B w/ zippers thunderjet w/yost powertube, andrews gears,and shafts, competition engineering kevlar wet or dry clutch, 72 oil pump, morris magneto w/auto advance and single fire module, cycle electric generator w/electronic regulator,73 cu.in.
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4 Weeks Ago
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Custom Bike Builder
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Join Date: Dec 2014
Location: Phoenix
Posts: 2,419 Sportster/Buell Model: xlch Sportster/Buell Year: 1964 Sportster/Buell Model #2: XLCH IR EFI Sportster/Buell Year #2: 1971 Other Motorcycle Model: BMW K1200RS Other Motorcycle Year: 2001
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Thanks for the subtle reminder Bruce. I swear I’ll get the bit gauge out one of these days.
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4 Weeks Ago
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Custom Bike Builder
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Join Date: Dec 2014
Location: Phoenix
Posts: 2,419 Sportster/Buell Model: xlch Sportster/Buell Year: 1964 Sportster/Buell Model #2: XLCH IR EFI Sportster/Buell Year #2: 1971 Other Motorcycle Model: BMW K1200RS Other Motorcycle Year: 2001
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bore gauge
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4 Weeks Ago
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XL FORUM TEAM MEMBER
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Join Date: Feb 2009
Location: ny
Posts: 96 Sportster/Buell Model: sportster xlch Sportster/Buell Year: 1970 Sportster/Buell Model #2: sportster xlh Sportster/Buell Year #2: 73 Other Motorcycle Model: sportster Other Motorcycle Year: 2003
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good time
Now is the time to check rod shake side to side and up and down. Hate to see you rebuild the top end just to have another piston failure. Remember you only have one more overbore (.030) to go on the jugs.PS I had my 73 HD jugs resleeved several years ago by Rask Cycle in PA. The deal was Rask wanted me to purchase the pistons from them.Unfortunately I had already purchased new standard pistons from Wiseco so I made a deal with them.I paid their standard markup on the set and they did the job with my pistons.
Last edited by sungod; 4 Weeks Ago at 18:45..
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