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t5 172 carb set up
Posted: Thu Apr 16, 2015 9:17 am
by soulboy
just put a 25 mm carb with polini filter on and it bogs down in every gear ..with out the filter its a bit better so am I to rich
Re: t5 172 carb set up
Posted: Sat Apr 18, 2015 7:36 am
by soulboy
its taking longer than it should to fall on tickover can anyone tell me whats causing this ive taken the filter off
Re: t5 172 carb set up
Posted: Mon Apr 20, 2015 5:10 pm
by ipman
Re: t5 172 carb set up
Posted: Mon Apr 20, 2015 6:09 pm
by acko
soulboy wrote:its taking longer than it should to fall on tickover can anyone tell me whats causing this ive taken the filter off
Sounds lean to me.
Re: t5 172 carb set up
Posted: Wed Apr 22, 2015 12:48 pm
by soulboy
yes but at the top end its a bit rich the needle is on the top slot its got a 130 main jet in any help would be gratefull I remember on my 172 dragster with a 25 mm carb the main jet was only about 105/108
Re: t5 172 carb set up
Posted: Fri Apr 24, 2015 10:37 am
by soulboy
yea cheers all

Re: t5 172 carb set up
Posted: Fri Apr 24, 2015 2:58 pm
by sean brady scooters
sounds to me that you need to get this set up properly on a dyno ,its rich on the top end but weak with possible air leaks at low revs ...