Skip to content
About Us Contact us Help, Guides & Blogs Trustpilot Reviews
Gunson Motorcycle Colortune Kit 10-12mm
Gunson Motorcycle Colortune Kit 10-12mm

Gunson Motorcycle Colortune Kit 10-12mm

by Gunson
SKU G4172-LAS
Sold out
£69.69 - £69.69
£69.69
£69.69 - £69.69
£69.69

Free Standard Delivery for Orders Over £40*

Length: 10

Product Information

Specially designed for motorcycle engines, this low-volume Colortune maintains the engine’s compression ratio, ensuring better firing of the mixture. Simple to use, the Colortune spark plug features a glass insulator viewing window, making the combustion flame visible. The kit also includes a view scope with an adjustable mirror, allowing the flame to be seen where engine access is restricted. The flame colour inside the cylinder shows the richness of the air-fuel ratio: a yellow flame indicates a rich mixture, a bluish-white flame a weak mixture, while a Bunsen blue flame is usually correct. By adjusting the mixture screw to achieve the correct flame colour, the engine can be tuned accurately. This Gunson Colortune kit for motorcycles is designed for use with a 10mm spark plug size.

Features
  • Colortune features a viewing window so the air:fuel ratio can be adjusted according to flame colour. Ideal for simple and effective engine tuning.
  • Colortune will fit most motorcycle engines fitted with M10 threaded plugs.
  • Kit includes: 10mm plug, hexagonal adaptor, angled cleaning brush & instructions.
  • Replacement HT lead adaptor available, Part No. G4074/02.
  • Also available to fit motorcycles fitted with M12 threaded plugs, please see Gunson Part No. G4171.

Available in 2 length options 10 and 12 — use the selector above to pick the exact one for the job.

Available lengths

Use the length selector at the top of this page to choose your option. Each option is dispatched as a separate stocked item.

Specifications
Length EAN
10 5018341741723
12 5018341741716
Brand Gunson
EAN 5018341741723
Type Colortune
Item Weight 0.155 kg
Custom Bundle No
Item Width 118mm
Item Height 31mm
Item Depth 265mm
Country/Region of Manufacture Great Britain
Customs Tariff Number 90278990
Sub-Type GENG
Length 12mm
Manufacturer Part Number (MPN) GPL
Shipping and Assistance

We aim to deliver all in stock orders within the displayed time frame above. If you'd like to check in on the status of your order or need some assistance regarding a future order, please get in touch. Click Here to see our full Shipping Policy.

Please note delivery to Northern Ireland, Ireland, Scottish Highlands, Islands and Channel Islands are all not included within our free delivery service.

Contact us here if you are unsure whether you qualify for free delivery service, or to get a delivery quote if you live in one of the excluded areas.