[CLR181]

I had another thread going on this Sabre mower...it turns out I had to replace the carb on it, so I have a question regarding setting the carb now

I have idles around 1800rpm low/3000 high

It idles great on low
It runs while under load (blades engaged) good
BUT
When it's on high throttle there's the odd popping/misfire sound here and there

How can I fine tune that issue without wrecking the others?

 

[RoyM]

Does it happen under load or no load? If no load the idle mix may need to be enriched a tad but is it worth worrying about? As a very wise man once said "If it ain't broke don't fix it".

 

[CLR181]

Does it happen under load or no load? If no load the idle mix may need to be enriched a tad but is it worth worrying about? As a very wise man once said "If it ain't broke don't fix it".

As it says above under load its ok
- It was broken, so I had to fix it...I replaced the carb completely
And I don't believe its supposed to make a popping/misfire sounds on a new carb, so I'm fixing it

 

[CLR181]

So if it's making this type of noises on a new carb, would it be more fuel or less in the mixture needed?

 

[dwendt44]

That popping would indicate lean mixture so open the main a bit.
Shoot for 3500 at full throttle.
Idle mixture likely won't affect full throttle running.


My 2¢

 

[CLR181]

Thanks Dwendt

 

[inspectorudy]

Here is a video on popping in a B&S engine. You may not like it.