Gunson G4055B Colortune / Hi Gauge Adaptor Kit 12mm

ManoMano

A 14mm to 12mm thread adaptor that converts the standard connectors supplied with the Gunson Colortune and Hi-Gauge compression testers to fit the smaller spark plug sockets commonly found in classic motorcycles and two-stroke engines. The set includes a soft copper washer to ensure a reliable seal. Thread adaptor for the Gunson Hi-Gauge Compression Tester, Part No. G4101 & Gunson Colortune, Part No. G4074. Thread size: 14mm to 12mm. Suitable for classic motorcycles & two-stroke engines. Kit contains: 14mm to 12mm thread adaptor & gas seal washer. Other adaptors available, Part Nos. G4055A (10mm), G4055C (14mm tapered seat), G4055D (14mm long reach) & G4055E (18mm).

The Green Spark Plug Company

This kit converts the thread on Colortune and Hi Gauge Compression Tester to fit most popular sizes of spark plugs fitted to most modern and classic cars, motorcycles, garden machinery and boats. Contents 1 x Thread Adaptor 12mm 1 x Gas Seal Washer Adapter 14mm to 12mm Two Stroke motorcycles Suitable for use with gunson G4101 Extends the use of your compression tester Ideal for classic motorcycles

Amazon

Adaptor for Hi-Gauge Compression Tester, Part No. G4101 and Colortune, Part No. G4074. Thread size: 14mm to 12mm. Suitable for classic motorcycles and two stroke engines. Kit contains: 14mm to 12mm thread adaptor, gas seal washer and hex key. Other adaptors available, Part Nos. G4055A (10mm), G4055C (14mm tapered seat), G4055D (14mm long reach) and G4055E (18mm).