Author Topic: Mk5 carb problem  (Read 493 times)

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Offline Daren W Australia

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Mk5 carb problem
« on: 23 Apr 2020 at 04:05 »

My Mk5 goes again (the bores were honed, new rings, std pistons, the heads were re done) I'm using 95 fuel I had the carbs apart to clean now that it runs I need to know what slot the needle clips into and what jets others are using.

See vid

Thanks Daren
« Last Edit: 23 Apr 2020 at 04:10 by Daren W Australia »
too many dougli not enough time!

Offline eddie

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Re: Mk5 carb problem
« Reply #1 on: 23 Apr 2020 at 08:35 »
Hi Daren,
               Here in the UK, when we had to change to unleaded fuel, most of us found our Mk's ran better with one size smaller slide cutaway and an increase of 5 to 10 on the main jets. Then play around with the needle height to get clean running between and throttle. Super unleaded may need a further increase in main jet as it tends to have a higher viscosity than the ordinary unleaded - apparently the difference is only noticeable on engines with carburettors, as fuel injected motors get a specific amount pumped irrespective of how thick the liquid is!

  Hope this helps,