Oily Spark plug

That WOT from 2door you posted was worth it's weight in gold.

hmm... I've done that "simple 5 minute" experiment myself and I must say the results were... well less than "convincing" lol

Having said that, I'd like to point out that these kits are all over the place insofar as "tolerances" go, so what doesn't work for one may be just the ticket for another *shrug*

Keeping your above NET and other advice in mind, I try to limit my advice to the very basics of function, using the lean/rich as an example - the "proper" way to adjust it on these carbs it pretty much limited to jetting and needle clip settings. While you may indeed get variance in "mix" due to float level adjustment, I suspect that's a result of your float being at the incorrect height to begin with. Once its "fixed" yer done with it.

Which is ofc a slightly different problem, a starvation issue - not really a fuel/air mix adjustment, although the end result is somewhat similar. Whereas with the actual fuel/air adjustments you may find it needs continuing/additional tinkering due to temp/air density and even what oil/fuel mix you like. When making a "remote" diagnostic of someone's problems, it's prolly best to start with the standard technique - once the fuel/air mix is set and there's continuing problems like cutting out at speed - then I wonder about things like float level.

I usually skip over such fine distinctions initially as not to mislead or confuse. We all have our "pet" favorite tweaks, not all are as relevant as actual engine basics and the "standard" repair techniques. KISS really is best in most cases

Yus - yus it was Tom is ossum lol

Then you didn't do it right. Either you failed to test at WOT, the jet was way off, or you didn't go far enough. If you bend the prongs down to just above starving the plug will be grey and motor will not stop with choke. Up til it almost leaks the plug will be black and it will 4-stroke at WOT. It is equivalent to several jet sizes.

The needle clip position has little effect at WOT where most people are having issues. Soldering/drilling or ordering new jets is a non-triival task compared to bending prongs.

You and I have different definitions of KISS. I've solved several ratio problems (plug color, 4-stroking, etc.) in less than a minute by popping bowl off and bending prongs. How long does it take to redrill or order new jets?

The only real risk is if ratio was not the trouble to begin with and noobs fail to get those prongs back where they were.

...and my carb's float is set dictated by the angle at which the carb is mounted - in my case so extreme as to limit any adjustable range there may have been were it mounted level, unfortunately this also means I can't experiment with your suggestion.

I have noticed how few level types we have around these parts

I'm not 100% sure how much an effect the "regulation" of fuel into the bowl would actually have beyond restricting it to the point of starvation. The only way I can see it having any effect is the extremes - literally pouring into the carb or simply not filling the bowl enough and cutting out.

The air comes from the throat after all, fuel should be atomizing as it comes out of the jet and not before - so how would float level effect mix if it's the needle that regulates this fuel stream? Where's the "air" coming from? I just don't see the float as being precise enough to regulate anything anyway as it bounces and sloshes around in there at speed beyond plugging and opening...

I could be wrong, gawd it's happened enough before lol But based on all my tinkering I've never considered the float as a viable means to adjust mix beyond "zomg its pouring out all o'er the floor" or high rpm starvation.

edit: I have never suggested drilling or rejetting, viable as they are - I have only referred people to setting the Eclip to adjust mix, dictated by plug coloration. Rejetting is way too regional (altitude) and thus precise to recommend specific sizes remotely, particularly when relying on a description alone heh

Well, I notice your posts have reached the thousand mark... ha! You contribute much here. Nice picture tutorial.
SB

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Someday when I grow up I will probably lose interest in toys with wheels, but until then...

Hey thanks silver! It's good to be here lol

(1001 heh)

I am sure one could change the fuel richness by float bowl...the other day someone was said he was doing the same thing by not opening the petcock all the way hence limiting the flow. That's kinda like not giving straw to people trying to make bricks...whadayknow Al they aren't making as many bricks for some reason today LOL

I noticed one of the senior people told the guy that's dangerous as it could lean the engine too much causing damage. Do you know how it feels to be thick as a brick? (Jethro Tull)

um... I still think that would lead to erratic fuel starvation - which isn't quite the same thing as adjusting your mix...

That certainly explains why you've had bad luck trying this. I keep my carb perfectly level as I never use the gas petcock.


"Regulation of fuel into the bowl" is not a practical or safe method to control ratio. Unrelated to setting fuel level with the float.

In post #12 you described "jetting" as a "proper" way to adjust mixture. I think we agree it is not the easiest way.