Carby Carb Needle HELP!

[Patch]

I just figured that yesterday. So how long should I be running 20/1? Should I go to 32/1 then to 40?

Just thought of that silly me

 

[SlicerDicer]

is the carby seated all the way onto the intake? not much room for error there.

if the intake flange is even a bit off-flat it's gonna leak...same with the exhaust.

also, the jug-base gasket is critical, and when mine went out i didn't even see it until one whole section was gone. that one robbed me of a ton of performance.

I cut a new gasket and put it on it seems to help a bit more but its still in the crapper... however the intake manifold rocks a bit maybe I need to flatten it?

 

[gone_fishin]

yes, check the flange by running a flat file across it and looking for low or high spots. keep filing until you have a clean surface.

 

[Guest]

20/1 or 24/1 for a tank or two if you are really insecure. then go to 36/1 or 40/1.

 

[SlicerDicer]

yes, check the flange by running a flat file across it and looking for low or high spots. keep filing until you have a clean surface.

Ok well I took my dremel to it to knock down the high spots then filed it flat. I am still having the same issues? Any ideas? And at richest of rich the plug does not look stupidly fouled.

 

[gone_fishin]

would you refresh us on where you're at at this moment?

for sure...the carb, intake, head, jug, & exhaust gaskets are good to go?

inline fuel filter? float level correct? debris in the bowl/main jet?

electrical connections well-insulated from each other & ground?

and this is my now-experienced .02, but still only personal opinion ...because of the cheap bushings, i'm not comfortable with anything "drier" than 36:1 dino pre-mix.

ok, just saw the plug...maximum .025 gap? and align that electrode better.

 

[OldPete]

IMHO, that is a little dark but you are running alot of oil.
Google plug chop and read some of the links.
Air cooled stroker plugs will run darked than air cooled 4 stoke plugs.

Lots of good info at this site. Take a look at his 4 stroke plug colors.
http://www.dansmc.com/spark_plugs/spark_plugs_catalog.html

NOTE: Be aware that stroker plugs can whisker and prevent a spark.
A whisker is a thin bit of carbon between the plug's electrodes. It is very hard to see with the nekkid eye.
Solution? When there is no spark? Run a business card between the electrodes and try again. You can not blow it out with your breath.

 

[OldPete]

augi tells the truth about oil and these Chinese motors. The state of the art air/water cooled strokers can run 50 to 1...some go as far as 100 to 1 during idle when using oil injection.

This is dated info but fits these Chinese motors to a tee. Read it please!
http://www.dansmc.com/2stroke_oil.htm
He even refers to Gordon Jennings the accepted American tuning master of the stoker motor back in the '70s.

EDIT: With modern oils in these fairly crude engines, 36 to 1 would be about it for lean for any I owned.
I would run a little rich(gas) on hot days+high sustained speed too, as it will hold off detonation.

 

[SlicerDicer]

would you refresh us on where you're at at this moment?

Filed the manifold flat and did a new gasket out of cereal box.

for sure...the carb, intake, head, jug, & exhaust gaskets are good to go?

As far as I can tell all the gaskets are fine.

inline fuel filter? float level correct? debris in the bowl/main jet?

I just cleaned it with some carb cleaner the bowl, jet etc.

electrical connections well-insulated from each other & ground?

Should be quite insulated.

and this is my now-experienced .02, but still only personal opinion ...because of the cheap bushings, i'm not comfortable with anything "drier" than 36:1 dino pre-mix.

I am running 36:1 or somewhere around there 1.8 gallons of gas with 7oz I think it was I caculated it anyway.

ok, just saw the plug...maximum .025 gap? and align that electrode better.

Alrighty I will redo the gap and allign the electrode.

IMHO, that is a little dark but you are running alot of oil.
Google plug chop and read some of the links.
Air cooled stroker plugs will run darked than air cooled 4 stoke plugs.

Lots of good info at this site. Take a look at his 4 stroke plug colors.
http://www.dansmc.com/spark_plugs/spark_plugs_catalog.html

NOTE: Be aware that stroker plugs can whisker and prevent a spark.
A whisker is a thin bit of carbon between the plug's electrodes. It is very hard to see with the nekkid eye.
Solution? When there is no spark? Run a business card between the electrodes and try again. You can not blow it out with your breath.

Alrighty I will do this when I regap and straighten the electrode. I will be going to a much nicer plug shortly so that will be a null point about it

I am considering either the bosch platinums that I run in my car or the Iridium plugs one or the other.

 

[OldPete]

Google plug chop.
You are not going to do any better using a high end 500k mile spark plug.
Use a basic plug of the recommended heat range and just change it often, like every 3~6 months.