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8 lis 2012 · It allows you to use your spark plug opening for double duty, adding decompression capability. Here's the source: http://smccycles.com/catalog/product_info.php?language=en&products_id=305. It's very expensive. I added my decompression valve for about $15 by drilling and tapping my head cover.
29 kwi 2006 · After a cursory inspection of the flamed engine , I notice that the Spyke FyrStryke decompression release adaptor has blown out between the head and the release unit. So after my buds turn 'round and get back to where I'm pulled over, we get to taking out the offending plug/ release unit...
Spyke Firststryke Compression Releases feature: Fits EVO Big Twins, Aftermarket, and Short Reach Shovelheads; NOTE: Will not fit Twin Cam or bikes with screaming eagle heads; NOTE: Will not fit Revtech motors with 12mm spark plugs; State of the art spark plugs boost power and torque; Short reach Shovelhead adapters available
16 gru 2012 · I have researched the spyke firstryke bolt-on compression release, where the spark plug fits into the compression release valve, and in turn it screws into the spark plug hole thus removing the need for machining the heads.
Compression Release Kit. Designed for Harley Davidson Evolution and Twin Cam engines that utilize a ¾” reach spark plugs. Easy to install requiring no modification to the cylinder heads. Helps to ease starting therefore reducing strain on battery and starter.
Spyke Firstryke Bolt-On Compression Releases are designed for use exclusively in Harley Davidson motorcycles with EVO Big Twin engines with 14mm spark plugs or short-reach Shovelhead engines when used with adapter #454131. For use on engines with no prior modifications to spark plug area. Spyke shall not have any warranty obligation if the
16 sie 2005 · Has anyone had experience with the new SPYKE compression releases built into a spark plug adapter? I have a custom 104 in high compression motor that is stalling the starter. I am going to have to do something before it frys the starter and I would like to avoid machining the heads.
