Stihl ms250 help, new engine, will not start

[HarleyT]

There are dozens of different Chinese factories that make cheapo carbs. Are you saying that they are all better than OEM?

 

[Panther314]

Not the carb. I figured it out. New carb flooded. I cannot pull hard and fast enough for a good spark.
I pulled the spark and pulled hard and fast. Nice spark at the end of plug. When I pull slower not real spark.
I put back together and tried to pull hard and fast and the pawg broke. I have to pull slow to engage then fast. This is not enough to turn over. It kinda starts like coughs and stops then it is flooded.
I looked at how the pawg broke. Only side tip breaks like it is only half engage.
I pulled the flywheel and found the wrong part number on the back from what I ordered. It is 1130-400-1204 not what I wanted 1123-400-1203. It is 20mm short and not fully engaging the pawg. Talking to the dealer about the flywheel I ordered and want to exchange for the correct one.

 

[Panther314]

10mm as shown in the picture above. Sorry typo on the 20mm

 

[Panther314]

30 bucks for the new carb, not awlful and I now have a good backup.

 

[HarleyT]

Lol, I would have been cheaper!!!

 

[Panther314]

Oh, I am sorry. I didn't realize you were seller. What is your website?

Also the guy told me the number on the back of the the flywheel is not part number. It looks like it but it is not. Can you just confirm the guy is FOS?

 

[HarleyT]

No, there are different ignition combos, and the numbers on the back of the flywheel are crucial. Most other parts, the "number" on the part are not that important.

 

[HarleyT]

I only sell using the number on the underside. I never thought that the height was different.

 

[HarleyT]

I doubt that it is your problem...
Likely a "red herring"....

 

[atpchas]

Not the carb. I figured it out. New carb flooded. I cannot pull hard and fast enough for a good spark.
I pulled the spark and pulled hard and fast. Nice spark at the end of plug. When I pull slower not real spark.
I put back together and tried to pull hard and fast and the pawg broke. I have to pull slow to engage then fast. This is not enough to turn over. It kinda starts like coughs and stops then it is flooded.
I looked at how the pawg broke. Only side tip breaks like it is only half engage.
I pulled the flywheel and found the wrong part number on the back from what I ordered. It is 1130-400-1204 not what I wanted 1123-400-1203. It is 20mm short and not fully engaging the pawg. Talking to the dealer about the flywheel I ordered and wantView attachment 698174 View attachment 698175 View attachment 698176 to exchange for the correct one.

The 1130 FW is for the 017/170 family. In addition to size differences, the timing may also be different. If you ordered 1123-400-1203, not sure how an attentive dealer ends up with 1130-400-1204.

 

[HarleyT]

The 1130 FW is for the 017/170 family. In addition to size differences, the timing may also be different. If you ordered 1123-400-1203, not sure how an attentive dealer ends up with 1130-400-1204.

Good catch. We missed that!

 

[Panther314]

At you win. The timing is off. Looking at the key location and the magnet. Was also sparking at the wrong part of the stroke.

 

[Panther314]

Got the new flywheel. Started in 1 pull after choked. Thanks for all the help.

 

[Panther314]

 

[Rick Stephens]

Glad you got your saw running!

The 1130 FW is for the 017/170 family. In addition to size differences, the timing may also be different. If you ordered 1123-400-1203, not sure how an attentive dealer ends up with 1130-400-1204.

At least the middle number is the same, LOL. Wow. Good catch indeed.

 

[Ax-man]

No wonder that saw wouldn't start. Good for you to catch that flywheel boo boo.