baker
New member
94 500 ST - I'm at 4500 ft, with 145 mains, stock pilot jets, needle at #2. Screws are 1.5 turns out. Oil pump is adjusted. The sled runs great, makes cardboard plugs at Mid and WO throttle runs.
I noticed the motor has a slight "gurgle" or "miss" when holding approx 12mph with 3/16 throttle. If I give more gas, it just takes off. So it wasn't really bothering me.
BUT - yesterday in deep powder, I discovered that it doesn't want to accelerate out of it. If I slowed for a big sweeper through trees, the sled struggled to accelerate out of that 3/16 throttle.
Too rich or too lean right there?
If you back the screws out, that makes it leaner right? (more air, right?)
THX.
I noticed the motor has a slight "gurgle" or "miss" when holding approx 12mph with 3/16 throttle. If I give more gas, it just takes off. So it wasn't really bothering me.
BUT - yesterday in deep powder, I discovered that it doesn't want to accelerate out of it. If I slowed for a big sweeper through trees, the sled struggled to accelerate out of that 3/16 throttle.
Too rich or too lean right there?
If you back the screws out, that makes it leaner right? (more air, right?)
THX.
daman
New member
Did it sound like a Bog or a gurgle when you have it pinned?
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baker
New member
The only time I hear that gurgle or miss is when I'm cruising at 12mph with 3/16' throttle. This usually occurs when slowing down to 12ish mph for a sweeper thru trees or into driveway, etc.
Pinned, it just hauls ***, no gurgle.
However, in deep powder, if i drop into that gurgle zone with partial throttle, the load is too much and it won't come out of it.
Now that I'm thinking about it, this would have to be too-rich. If it was too lean, it would climb out immediately when IIgave it more gas (opened the main).
But if the pilot circuit is too rich at 3/16 or 1/4 throttle, and then i give it gas, it's gonna stumble, especially under load.
I'm gonna back out to 1.75 turns, see what that does.
FYI - I ran my 600 at 2 turns out for a little while, but the hot-motor light came on. I turned screws in to 1.5, no more problems.
Thx.
Pinned, it just hauls ***, no gurgle.
However, in deep powder, if i drop into that gurgle zone with partial throttle, the load is too much and it won't come out of it.
Now that I'm thinking about it, this would have to be too-rich. If it was too lean, it would climb out immediately when IIgave it more gas (opened the main).
But if the pilot circuit is too rich at 3/16 or 1/4 throttle, and then i give it gas, it's gonna stumble, especially under load.
I'm gonna back out to 1.75 turns, see what that does.
FYI - I ran my 600 at 2 turns out for a little while, but the hot-motor light came on. I turned screws in to 1.5, no more problems.
Thx.
daman
New member
Yea she may be too fat, just play with it for now
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blue missile
New member
i agree i think she's rich. remember lean is mean 