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JIMS Manual Compression Release Valves

Manufacturer Part Number 727K

J&P Part: 380-346

4 Reviews

  • JIMS Manual Compression Release Valves
Product may vary from photo(s).

$111.99

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4 Reviews

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Description for JIMS Manual Compression Release Valves 

JIMS Manual Compression Release Valves

Fitment Note: For 10mm threaded Dual plug heads, or heads that have been machined for a compression release.

• 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 × 1.0mm drilled and tapped hole in your cylinder head for use

Made In The USA This product was proudly made in the USA

Product Specs

Manufacturer Part Number: 727K

Sold in Units: Pair

Thread Diameter: 10mm

Fitment for JIMS Manual Compression Release Valves 

Fitment Note: For 10mm threaded Dual plug heads, or heads that have been machined for a compression release.

Customer Reviews for JIMS Manual Compression Release Valves 

Overall Rating:
5/5 based on 4 ratings

5 by

We returned this item cause it wasn't what we needed

4 by

Looks great and feels sturdy. The threads are 10mm and my panhead spark plug threads are 12mm. I will need an adapter.

5 by

thanx for a great product!

5 by

Easy Install !

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