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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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engine, ironhead, knocking, sound

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  #11  
Old 10th May 2017
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brucstoudt brucstoudt is offline
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the lifter roller bearings can be checked without removing the cam cover.with the pushrods removed you can remove the lifter blocks.i,agree with the compression test.
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  #12  
Old 10th May 2017
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so righteously said mr. mick.
like the sound and curves the iron will do over the sport, just not as fast. it might be just me but the cg of the iron is way better.


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  #13  
Old 11th May 2017
Flynnstigatr Flynnstigatr is offline
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Did a compression test last night, warmed the engine up to operating temp and both cylinders we're at 120 exactly. Going to check the timing tomorrow morning. Also going to give the carb a good cleaning. Will update as soon as I'm done! Thanks everyone for all of the help!
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  #14  
Old 11th May 2017
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Quote:
Originally Posted by Flynnstigatr View Post
Did a compression test last night, warmed the engine up to operating temp and both cylinders we're at 120 exactly ...
IMO - If you warm it up by going for a half hour ride out of city traffic you should get higher numbers. If you warmed it up in the shop or in city traffic you may have fouled plugs.
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  #15  
Old 11th May 2017
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Iwas wondering since he didn't say was the throttle held to WOT?
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  #16  
Old 11th May 2017
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^^^ Good point. Need full operating temperature plus throttle held wide open while cranking to get the true big reading.
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  #17  
Old 12th May 2017
Flynnstigatr Flynnstigatr is offline
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The throttle was held wide open.
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