decompression valve

#1
anyone use a harley decomp release on there hi compression predator this type needs no mods the harley ones you gotta drill in the chamber decomp.jpg decom.jpg
 
#2
Most aftermarket cams come with a compression release mechanism that uses the exhaust valve. The exception would be any billet cam as those do not have compression releases.
 
#3
the engine im running turns 8500 rpm that compression release is not gonna last and i find it extra baggage only a matter of time when it lets go but i appreciate your input
 
#4
People run those compression releases up past 9k all the time without problems. The reason to ditch it is if the cam can't handle the valve spring/ rpm that you run and you need a billet steel cam.
 
#5
it just seems like something that will let go at some point i have heard of them failing and i wanna pull start mine so the decompression release seems like a good idea , im still learning i am using the cam release now we will see how it works out
 
#6
The "Harley" one pictured is cheap chainsaw part, $10-15 for decent ones.

The plug type requires a slotted thread area (read thread-chaser) or the oddball unit pictured.
 

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