spark plug colour and mixture adjustment

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Motocod
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spark plug colour and mixture adjustment

Post by Motocod »

While adjusting the valve clearances yesterday (11S) I found the plugs are a little on the pale side. Is it possible to tweak the fuel mixture without having to resort to re-flashing or a power commander?
tanneman
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Post by tanneman »

A crude method is to use the fuel regulator from a K1200RS. The flat four ones. It involves removing the tank.
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Motocod
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Post by Motocod »

Thanks, good to know.

Pity it's not as easy as raising the needles a couple of slots...

Never had great success with power commanders in the past, so reluctant to consider those. I've read a little about fuel accelerators, which are tempting to try on cost and ease of installation grounds.
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nab 301
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Re: spark plug colour and mixture adjustment

Post by nab 301 »

Motocod wrote:While adjusting the valve clearances yesterday (11S) I found the plugs are a little on the pale side. Is it possible to tweak the fuel mixture without having to resort to re-flashing or a power commander?
Maybe back in the day when we had leaded petrol and carburettors you could gauge mixture visually. Nowadays it's not really possible , pale is normal.. imo etc etc


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Post by f90x »

tanneman wrote:A crude method is to use the fuel regulator from a K1200RS. The flat four ones. It involves removing the tank.
I believe that if you do this you HAVE to have it set up with a pc3 other wise fuel gets thrown in by the bucket load. My 11 had it done by the previous owner and informed me of this.
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Motocod
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Re: spark plug colour and mixture adjustment

Post by Motocod »

nab 301 wrote:
Motocod wrote:While adjusting the valve clearances yesterday (11S) I found the plugs are a little on the pale side. Is it possible to tweak the fuel mixture without having to resort to re-flashing or a power commander?
Maybe back in the day when we had leaded petrol and carburettors you could gauge mixture visually. Nowadays it's not really possible , pale is normal.. imo etc etc


Image
Mine weren't far off the same colour. I may check them again in a few weeks. I recently removed the baffles from my exhaust cans, but I can't believe that would enormously affect things.

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