myke pocock
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| posted on 30/12/09 at 09:30 PM |
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Filter King
Please excuse me asking this question on the locost site but someone may have an answer. I have bike carbs fitted to my Skoda Estelle trials car
engine. I am running a Filter King to regulate the fuel pressure to the carbs. The pressure regulation was pre-set when i got the filter (new off
ebay) What would the indications be that the pressure needs to be adjusted? I am getting some poor running at very high revs that may be fuel
starvation but it could also be other things. If the fuel pressure is not restricted enough do I get flooding of the fuel chambers or if it is too low
would I get starvation at high revs?
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David Jenkins
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| posted on 30/12/09 at 09:38 PM |
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I tried a filter king regulator with my CBR600 carbs - never worked very well. I think that it struggles to supply low pressures at sufficient
volume.
Now I run a bike pump that originally came from a large Kawasaki that had carbs (NOT a fuel-injected bike!) and I don't use a regulator at all.
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andkilde
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| posted on 30/12/09 at 09:45 PM |
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Hmmn, so many possible answers...
Do you have access to a wideband O2 sensor sensor setup and a knowledgeable friend, or perhaps a decent local tuning shop with a rolling road?
Bike carbs don't generally need very high fuel pressure and too much will overwhelm the float and needle valve and give you all sorts of low
speed flooding issues.
It's more likely that the needle profile is lean at the top end and you need to fit new ones, which will be fairly inexpensive but tough to get
right by guessing.
Cheers, Ted
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blakep82
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| posted on 30/12/09 at 11:29 PM |
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kawasaki carbs only want about 1.5 psi i think.
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