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88 Posts Member #: 7788 Advanced Member bradford west yorkshire |
6th Jan, 2011 at 09:38:11pm
hi guys i have a little problem with the running of my mini it coughs and splutters when the choke is not being used but when i use the choke it runs like a little rocket any ideas on what this might be and how to solve the problem the engine is 1275 a+ and i think the carb is hif 44 not too sure though a mate of mine mentioned it may be running too lean ??thanks in advance guys |
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 4641 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
6th Jan, 2011 at 09:39:42pm
If it runs better when the choke richens it up, then it must be to lean as normal. Do you have the correct needle fitted & is the mixture set properly ? |
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88 Posts Member #: 7788 Advanced Member bradford west yorkshire |
6th Jan, 2011 at 09:44:06pm
not sure on either to be honest phil would i be better getting the carb fully rebuilt or is it easy enough to fix |
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 1713 Posts Member #: 8480 MS Paint flat cap champion & Morris Ital Lover From Sheffield now live in York tha noz |
6th Jan, 2011 at 10:03:22pm
I think what he is saying there is you need to perhaps get a decent mini manual out and have a look the info on setting the basic fuel mixture, the needles also control the fuel mix and can be standard or various modified profiles, have a look at how to remove the needle-look for a 3 letter code stamped on it and do a search across the forums i believe there are tables to show what needles are for which engine. The above is not perfect and a rough guide but should get it running something like if its just a standard/ish motor, I would make sure all igniton system is all top notch before doing any of that.
On 6th Jan, 2011 johnrg said:
not sure on either to be honest phil would i be better getting the carb fully rebuilt or is it easy enough to fix On 18th Oct, 2013 apbellamy said:
I am feeling particularly BACish today. On 5th Oct, 2014 Shauna said:
What that's crazy, you go commando hahaha! How heavy is your helmet  ? The Morris Ital assassin! |
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4641 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
6th Jan, 2011 at 10:04:25pm
There's no reason to rebuild it if it functions ok. Try adjusting the mixture to make it a bit richer & see how it goes ?
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88 Posts Member #: 7788 Advanced Member bradford west yorkshire |
6th Jan, 2011 at 10:09:44pm
it has been like this since i got it 2 year ago but as i have fully restored it and only just rebuilt the engine it hasnt bothered me as i havent been running it its defo a fuel mixture problem all the ignition components are new this and the fact that it runs superb when the choke is fully on i will get it all together and running then alter the mixture if that fails then look a bit deeper in to the problem |
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 9812 Posts Member #: 332 Resident Cylinder Head Modifier Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem |
6th Jan, 2011 at 10:59:10pm
as above, too lean!
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