MS260 flooding issue.

[TIMBERTRON]

So im stihl certified been a member here for awhile but not vary active. Could use some alternative thinking on my problem
Ms260 new tank vent tank passes vac and pressure test. Floods in 3 pulls no start condition. new fuel lines new fuel filter new spark plug. Cant get it to kick over and run.

 

[Mad Professor]

Did you pressure test carb? Could be needle seat issue.

 

[TIMBERTRON]

Did you pressure test carb? Could be needle seat issue.

Has new carb and still same situation.
Checked old carbs fuel needle height checks good. Fuel tank passes pressure and vacuum test. Compression around 145-147. Has spark tested with stihl spark tester even. Just floods out after 3 -6 pulls. Wont even pop once.
I can normal narrow it down and find problems but this one is throwing me for a loop.

 

[TIMBERTRON]

Has new carb and still same situation.
Checked old carbs fuel needle height checks good. Fuel tank passes pressure and vacuum test. Compression around 145-147. Has spark tested with stihl spark tester even. Just floods out after 3 -6 pulls. Wont even pop once.
I can normal narrow it down and find problems but this one is throwing me for a loop.

Ive pressure tested the carb passes also.
Leak down test of cylinder passes both vacuum and pressure test as well.

 

[L34]

Does it spark at the right time eg flywheel key?

 

[stihltech]

Is the choke opening? Spring is known to fail. Does it hold the throttle open for a fast idle in the bottom 2 positions of the master lever?

 

[TIMBERTRON]

Does it spark at the right time eg flywheel key?

I check that. All good.

Found issue thou. Ive never hadca new carb be bad. But this one is. Ordered in a 2nd one and works fine.

 

[user 188535]

Found issue thou. Ive never hadca new carb be bad. But this one is. Ordered in a 2nd one and works fine.

But does it spark?

Although this is an idiotic question, does it have the right size of fuel line or does ith leak gas out of the muffler?