Jims Manual Compression Release Valves

Item: P1015158
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Product Details

Jims Manual Compression Release Valves


  • Give your starter a hand by installing these in your high-compression, big-inch motor
  • These need to be installed by an experienced mechanic/machinist
  • Can be installed in all Big Twin, XL and Buell motors
  • Fits dual-plug heads or heads that have been machined for dual plugs- Requires a 10mm x 1.0mm drilled and tapped hole in your cylinder head for use
Product Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style M10 Thread J&P Cycles Item #10248801 Catalog Number380-346 Store Sku MFR. Product #727K AvailabilityIn Stock: Ships next business day
Fitment Notes & Exceptions
  • For 10mm threaded Dual plug heads, or heads that have been machined for a compression release.
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4 Customer Reviews
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