WebLearn why a motorcycle compression test is an important starting point to get a good view on the health of an engine. WebThunderstorm heads have smaller fins than the 04-Up Sportster head & cylinder fins, and they may look funny sitting over the top of your late model cylinders. Also, the front head's right front mount hole (pushrod side) …
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WebMar 29, 2024 · Using The Compression Tester 1) Run the engine to get it up to operating temperature (maybe a 10-15 minute ride) Let the engine cool down just enough so you can work with it Disconnect and remove … WebAug 15, 2014 · [Archive] sportster 883/1220 compression pressure Sportster Motorcycle Engine Conversions ... Today I tested compression in my both cylinders. After normal riding - I had 150PSI on both cylinders. OEM 1200 sportster must have 200PSI. I know that. But I have original 883 heads. Bike is working good but .... bixolon srp 275 ribbon cartridge
Harley Davidson Sportster Engine Performance Diagnostic …
WebApr 11, 2024 · What compression do you have in the cylinders right now? Is the motor in operating condition? If it runs does it run well without any problems? If the crankshaft is … WebMay 6, 2012 · I did a Compression Test on my 75 Sporty. I did the test first when the engine was cold. The results where 105 psi front cylinder and 110 rear cylinder. I then followed the manuals instruction, took it for a ride and got it to operating temperature. Then redid the compression test and got 95 psi front cylinder and 100 psi on rear cylinder. WebOct 28, 2013 · As long as the engine can tolerate higher compression without detonation, the higher the better (within reason). 190 is about the limit for today's engines running the fuels of today. Back in 90's the fuel would tolerate more spark advance, more compression and higher cylinder temps before problems would appear. datentyp array