Gunson G4074 Colortune Single Plug Kit 14mm

Product Information

Both of the links show exactly what I described: a removable nipple which threads onto the male threaded terminal at the top of the plug, so I don't know why you're getting so het up.

Could I get one of these allegedly big female nipples (Ooer Mrs) and fill it with solder, then drill it out and get the adaptor thread to self-tap into it? Colortune features a viewing window so the air/fuel ratio can be adjusted according to flame colour. Ideal for simple and effective engine tuning. At idle, engine instability and misfiring may occur before this weak mixture and pale shade of blue is fully visible. Carbon monoxide levels stay low because there is plenty of oxygen available to convert it to carbon dioxide.Plug the other end of the adaptor lead into the plug cap of the car's ignition system.The adaptor is designed to fit both types of plug cap (with bare thread or clip type fitting) and fits most ignition systems.Try to keep the leads away from engine parts, particularly the exhaust and rotating items. COLORTUNE gives you a fascinating insight to the working of an engine without the usual complexities of most other diagnostic equipment. Extra adaptor sizes available separately, please see Gunson Part Nos. G4055E (18mm), G4055D (14mm long reach), G4055C (14mm tapered seat), G4055B (12mm) and G4055A (10mm). The original and best tool for seeing what's happening inside the combustion chamber of the petrol engine. On systems which have a slow running mixture adjustment, turn the adjustment to explore the range of colour available.

The principle of operation is not the reason for the warning although I have added a few comments regarding this at the end. If two twin choke carburettors are used the linkage between these must be set to achieve a synchronized opening.While this may be sufficient description for some simple adjustments to be performed, a comprehensive vehicle manual or the General Fuel System Manual should be referred to for further detailed information.

Screw the plain end of COLORTUNE adaptor lead to the centre electrode of COLORTUNE. Care should be taken not to over-tighten it or bend the centre electrode.As far as I can tell its complete apart from the bottle of cleaning fluid, but the connector to the ignition lead has a threaded end which doesn't, on its own, make a good connection. If the throttle is opened very slowly until the engine is running at perhaps half of the maximum rated speed, the blue flame should become slightly lighter. A high speed fuel feed and adjustment (main jet and main mixture screw) normally located closer to the inlet air cleaner mounting flange.The main fuel discharge feeds into a venturi shape, whose restriction (a fixed size choke) gives a low pressure to pull the fuel in. Fortunately, many systems also have the facility for a limited amount of self diagnosis, and give fault code information in the form of a blink code (a number indicated by a flashing led) or more complex forms of data transmission. The complete Colortune kit is also available in the following options: G4171 (with 12mm Colortune Plug) and G4172 (with 10mm Colortune Plug).

The information is in two main sections, one covering the various types of carburettor and the second dealing with fuel injection systems. A special fitment may for example be provided on a carburettor to achieve this extra fuel delivery - this is commonly called an accelerator pump. Deze Colertone plugset is een eenvoudige en effectieve manier om benzine/LPG 2&4-taktmotoren te tunen. Het is eenvoudig te gebruiken en werkt op het principe dat de ontstekingsvlam een bepaalde kleur heeft afhankelijke van de brandstofmenging. De Colortune is een bougie met een geïsoleerd glazen kijkvenster zodat de vlam zichtbaar is. De kleur van de vlam in de cilinder toont de rijkheid van de lucht/brandstofverhouding. Geel geeft een rijk mengsel aan, blauwig/wit een zwak mengsel en een Bunsen blauwe vlam geeft een gebalanceerd mensel aan. Door de mengschroef af te stellen om de juiste vlamkleur te krijgen, an de motor worden afgesteld op optimaal brandstofgebruik en prestaties. De set bevat ook een kijkscoop met instelbare spiegel zodat de vlam zichtbaar is als toegang tot de motor beperkt is. Past op de meeste benzinemotoren in standaard vorm met extra adapters beschikbaar voor voertuigen met bougies met alternatieve afmetingen. Specially designed for motorcycle engines, this low volume Colortune maintains the compression ratio of the engine, ensuring better firing of the mixture. Simple to use, the Colortune spark plug has a glass insulator viewing window so that the combustion flame is visible. The kit also includes a viewscope with adjustable mirror so the flame can be seen where engine access is restricted. The colour of the flame inside the cylinder shows the state of the air:fuel ratio - a yellow flame indicates a rich mixture, a blueish white flame a weaker mixture whilst a Bunsen blue flame is usually correct. By adjusting the mixture screw to get the correct flame colour the engine can be accurately tuned. This motorcycle Colortune kit is designed for use with a 10mm spark plug size. Multi-cylinder engines, particularly those with twin or multiple fuel systems are best tested with a Colortune in each cylinder.

Stop the engine, take care to avoid hot engine parts and brush away any grit from around the spark plug before removing it. NOTE: Many twin and multiple carburettors require flow balancing before mixture is set - see the end of this section As I said in the original post, I'll probably be able to get one eventually after CNY (everything is currently closed), though I have been told (by Taiwanese mechanics, who do tend to be full of it) that it won't fit.