Runing rich?

Discuss mechanical problems here.
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ani
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Post by ani »

Yep - the person that did it for me used the lift pin and his ear - as I said he did his apprenticeship on Minors - bit of luck there. I imagine - after a real struggle to get to Somerset with very little power and just about 40mph with foot on the floor very little fuel was able to get through all the muck that was found in the carb and petrol pump. Once all that was cleaned out I suspect there was a real good flow of petrol - it was obviously being starved of it! Not really surprising that the mixture required adjusting after all this. Anyway that's my logical way of looking at it :D I'll take for a good run tomorrow and check the plugs again in the hope that they have returned to normal.

bmcecosse
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Post by bmcecosse »

Was the mix not reset after the good cleaning ? Anyway - sounds like you have it sorted now - just watch out for the speed cameras!
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8009STEVE
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Post by 8009STEVE »

Was the mix not reset after the good cleaning
In the middle of a field, with limited resorces? No.
bmcecosse
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Post by bmcecosse »

Err - it only takes seconds - using the lift pin and listening to the idle speed!
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8009STEVE
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Post by 8009STEVE »

I did not see your hands under the bonnet! As I said before, YOU fix it. We were trying to HELP. Instead of always trying to have the last word, get your hands dirty.
ani
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Post by ani »

Now Now - stop it :lol:

Now it's all fixed - perfect - even needs the choke to start it. And I've learnt so much :D :D

bmcecosse
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Post by bmcecosse »

Best way to learn!
Watch one - do one -teech one !
It's your turn to go teech someone else how to do it.
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bmcecosse
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Post by bmcecosse »

My hands are regularly dirty - although the Pink Marigolds do help considerably! Distance is the problem Steve in this case - but locally I'm not afraid to help out where necessary!<br>Image<br>
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xpress
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Post by xpress »

How about spraying a bit of carb cleaner around the fuel lines, if the revs go up then you can zone in on the leak.

xpress
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Post by xpress »

Another thing, Gunson do this gadget that fits in a spark plug thread and the colour it turns tells you if you're running rich or not, I haven't used one though so can't vouch for its use.

bmcecosse
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Post by bmcecosse »

Colortune - waste of money! Especially with the SU carb which has a built-in idle mixture setting device !
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David53
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Post by David53 »

Unless you have an H1 carb with no lifting pin :-)
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David
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bmcecosse
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Post by bmcecosse »

In which case - you use a thin bladed screwdriver!
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David53
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Post by David53 »

Yes but only after removing the oil bath air cleaner which is a pain! Not to mention affecting the air/fuel mix when it's removed.

Unless you know a way to lift the piston without removing the air cleaner???
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David
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bmcecosse
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Post by bmcecosse »

Not really! The air cleaner etc will not affect idling mixture. But mixture can also be adjusted 'by ear' - it's obvious if you wind the mixture nut up and down when it's too weak - and too rich. Just settle in between - on the weak side - and check the plugs after a good hard run.
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David53
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Post by David53 »

That's what I've done. Wind it up until it starts to cut out then back down just until it runs nice and smooth and will check the plugs after a good run and adjust accordingly.

I still envy you folks with the lifting pin though!
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David
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bmcecosse
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Post by bmcecosse »

Well - you could drill and fit one I suppose!
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