anyone used the gunson colour tune plug , is it worth the 130 odd dollars ,after the pros and cons info ... sounds like a easy way to do a mukuni conversion tuning etc but maybe sounds to easy???
if it were that good, professional teams would be using it. spend the $130 on dyno time with a wideband
For those playing at home https://www.ebay.com.au/itm/1647531...ZnPESzNwL3X1wMTYX-DkDCLS8BOvHPphoCFlAQAvD_BwE
Looks like a good idea for setting your air/fuel mixture right. I'd be interested to hear how it goes if you end up getting one. The engine isn't under load, so I doubt it will be effective for our high revving 250/4 bikes. As Beef said, a dyno is the only real way to check your setup and maximize it.
agreed , dont think much good for race tuning etc , cant beat a dyno if one is near by or you can afford one , but wondering what it would be like for a close tune and not just for the high reving 4 cyd bikes but for the 2 and 1 cyd as well , find doing a cv to mukuni conversion can be fidlly and time consuming doing it without a dyno , a mate swears by them but hes been know to be wrong before (harley rider so??? mmm ) would really be intrested in any ideas from someone thats used them
I've had one for many years and would not recommend spending money to buy. They are ok to get a rough idle adjustment but useless for any high rev work. They also get very hot if used for more than a minute or two. I have been doing better tuning by ear and road.
thanks murdo , thats what needed to hear , was worried about heat range so not surprised getting hot after a min or so , might save the money for other things
