scoobyis2cool
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| posted on 12/8/05 at 08:59 PM |
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Colourtune
I spotted something called Gunsons Colourtune in Halfords today - you put it in a spark plug hole and it helps you tune the air/fuel ratio by changing
colour. Looks quite good, has anyone used it before?
Pete
[Edited on 12/8/05 by scoobyis2cool]
It's not that I'm lazy, it's that I just don't care...
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Ronin
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| posted on 12/8/05 at 09:34 PM |
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I have one. They aren't perfect but you can get reasonable results with a bit of patience. Obviously not as good as taking it to a garage to
have the carb set up properly though.
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Ian Pearson
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| posted on 12/8/05 at 09:43 PM |
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Used one on a GT 185 I had years ago. Found it when I was moving house recenly. Worked ok..ish.
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britishtrident
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| posted on 13/8/05 at 07:39 AM |
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Best tool for getting intial setting on twin SUs or DCOE Webers --- get each cylinder to as near ideal as possible then use a gas analyser to trim
the emisions down turning each carb/venturi idele mixture adjuster screw an equal number of turns.
[Edited on 13/8/05 by britishtrident]
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scoobyis2cool
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| posted on 13/8/05 at 09:51 AM |
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Thanks for the replies, looks like it might be ok for getting a rough setting but not for getting it spot on.
WRT gas analysers - I notice you can buy these in Halfords and they sometimes come up on ebay, would it be worth the extra money for one of these?
There seem to be a lot of large professional ones on ebay but also a few of the smaller Gunsons type ones. Which to go for?
Pete
It's not that I'm lazy, it's that I just don't care...
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Mark Allanson
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| posted on 13/8/05 at 10:24 AM |
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They are a bit average for setting up, but excellent for diagnosis, if you have 3 cylinders showing a nice blue flame, and one either white (lean) or
yellow (rich), its a pretty good guess where your problem is!
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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