Fingernail polish is what I've heard. Personally, I've never removed a welch plug.
NEVER use sealer - even the factory sealer from Zama has become a service problem with the "new gas".
Just place the welch plug in the hole/recess, and tap it lightly on top with a suitably shaped punch to distort it. (you may need to grind one if you don't have a zama/walbro tool kit) Tap it too much and you'll make it loose...
Blowing compressed air not recommend in newer carbs -they have internal NON-replaceable check vaves that get damaged.
Ive never used sealer.If the plug is well seated before you "punch" it,there should be no leak.Once installed,put a bit of oil over the plug and blow air tru the corresponding needle hole.If bubbles,then,punch a bit more and recheck.If you got leak,the saw will run rich.
NEVER use sealer - even the factory sealer from Zama has become a service problem with the "new gas".
Just place the welch plug in the hole/recess, and tap it lightly on top with a suitably shaped punch to distort it. (you may need to grind one if you don't have a zama/walbro tool kit) Tap it too much and you'll make it loose...
Blowing compressed air not recommend in newer carbs -they have internal NON-replaceable check vaves that get damaged.
It's an older ws26 carb, I put a complete kit in minus doing anything to the welch plug. On an 076 super.problem is in the cut,quite doggy
Hmmm.... I doubt that's your issue them - the WS26 doesn't have a welch plug... Did you remove the screws to the cover in the bottom of the metering chamber and replace that gasket etc?
Did your kit have the "hook-on" type of metering diaphragm? if so, did you hook it?
Does the saw sound like it's running nice? - not 4-stoking" when in the cut?
What does your compression feel like without use of the deco valve.
Are sure about that with ethanol gas? I've seen many where the polish has lifted off or got soft. No idea if they were using Revlon Blush, or...
Zama's pale green sealer has cost Stihl (and I'm sure others) a ton of $$ with warranty claims. They have abandoned it on later carbs. It almost drove me crazy on a few saws - floating around in the metering chamber as an almost invisible part. I've seen plenty with tiny portions jambed in the main jets.
The instruction sheet from Walbro Tool Kit No. 500-500, Diaphram Carburetors, states:
"Welch Plugs: Remove "L" and "H: needles, and gently drive tool #500-16 punch into welch plug at a low angle and gently pry loose. Welch plugs are replaced by using tool #500-15 and striking gently until crown is flat only. (Do not cave in Welch plug). It's a good idea to seal Welch plugs with a thin coating of nail polish."
Doesn't say what color of nail polish to use.:greenchainsaw:
Enter your email address to join: