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| Running a bit lean i think https://www.ausmini.com/forums/viewtopic.php?f=2&t=84468 |
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| Author: | micool [ Wed Feb 05, 2014 8:57 pm ] |
| Post subject: | Running a bit lean i think |
Guys what does it mean when you stop at lights and it feels like motor is going to stop but if i pull coke up only a few mm it runs fine. ( LEAN) Plugs are very dry too. Im going to install some new plugs tomorrow. Dont know too much about the carby to play with it runs gine when its up and going. |
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| Author: | Irish Yobbo [ Wed Feb 05, 2014 9:16 pm ] |
| Post subject: | Re: Running a bit lean i think |
There are two carby adjustments - there is the idle screw at the top of the carby which will change the amount of the air/fuel mixture going to the engine, and there's the mixture nut which changes the air/fuel ratio. You will want to wind the mixture nut out a few flats:  See the nut just above the plastic red end of the jet mechanism? Wind that out from the carby a little and see how you go. |
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| Author: | ryan [ Thu Feb 06, 2014 6:27 am ] |
| Post subject: | Re: Running a bit lean i think |
That does sound a little lean to me. Wind the mixture out a little and it should improve. |
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| Author: | micool [ Fri Feb 07, 2014 2:39 pm ] |
| Post subject: | Re: Running a bit lean i think |
Plug 1 brown  Plugs 2-4 black  I put a new set of plugs in to see the change over the next few days |
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| Author: | Irish Yobbo [ Fri Feb 07, 2014 3:22 pm ] |
| Post subject: | Re: Running a bit lean i think |
Hmmm... that's probably not a good sign. You will usually have cylinders 2 and three a little blacker than 1 and four due to the siamese inlets. Your plugs should look brown - if the plugs are black, that usually means it's running rich (or you're using too much choke) One cylinder should not be that different to the others - but I'm not sure what would cause it. |
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| Author: | micool [ Fri Feb 07, 2014 6:30 pm ] |
| Post subject: | Re: Running a bit lean i think |
Not sure what the old owner did or how old they are just put a new set in see how i go |
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| Author: | drmini in aust [ Fri Feb 07, 2014 8:25 pm ] |
| Post subject: | Re: Running a bit lean i think |
Check the resistance of your plug leads, if any are over 5K ohm I'd bin them. |
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| Author: | micool [ Sat Feb 08, 2014 4:55 pm ] |
| Post subject: | Re: Running a bit lean i think |
OK new leads new plugs new oil (penrite 20w-5 Classic) new wiring to coil tuned the carby with Gunson Colortune (best tool so easy) top up car with bio race fuel left over wow car is ruuning really good now    
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| Author: | goodie [ Sat Feb 08, 2014 5:29 pm ] |
| Post subject: | Re: Running a bit lean i think |
All good , but which change actually fixed the problem ? Not the best picture , but the plugs look a bit oily around the threads . |
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| Author: | micool [ Sat Feb 08, 2014 5:45 pm ] |
| Post subject: | Re: Running a bit lean i think |
Not to sure it did need a tune was a bit out. |
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| Author: | SteveOB [ Sat Feb 08, 2014 6:30 pm ] |
| Post subject: | Re: Running a bit lean i think |
hey micool where did ya get the Gunson Colortune from? looks like a handy thing to have. cheers |
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| Author: | micool [ Sat Feb 08, 2014 7:07 pm ] |
| Post subject: | Re: Running a bit lean i think |
I got it from the UK you can use it when ever you want 
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| Author: | micool [ Sun Feb 09, 2014 6:19 pm ] |
| Post subject: | Re: Running a bit lean i think |
i can get them for $50 if anyone wants one for them selfs very handy |
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