McCulloch Chain Saws

[heimannm]

The seats can absolutely swell and restrict fuel flow, I have had that happen 2 or 3 times already.

Some HL carburetors have a high speed check valve, some do not. I'm not sure if the "do not" class use a sintered metal capillary seal like the MAC carburetors. In either case I think you need to pop the welch plugs out and see why fuel isn't flowing through the H circuit.

Looking at the IPL again, the HL63 does have a check valve, you may have to take extra measures to make sure it is clean and passing fuel.

Mark Heimann

 

[MacAttack]

Yes, that means that you're pumping and metering enough fuel. It must be something in the high speed circuit.

Thank you Mr Hansen!

Sounds like I need to pop the carb off and try cleaning out the Hi speed circuit....

 

[MacAttack]

The seats can absolutely swell and restrict fuel flow, I have had that happen 2 or 3 times already.

Some HL carburetors have a high speed check valve, some do not. I'm not sure if the "do not" class use a sintered metal capillary seal like the MAC carburetors. In either case I think you need to pop the welch plugs out and see why fuel isn't flowing through the H circuit.

Looking at the IPL again, the HL63 does have a check valve, you may have to take extra measures to make sure it is clean and passing fuel.

Mark Heimann

I'm thinking the same thing Mark... I'm not afraid of popping out Welch plugs but now I'm wondering about finding a new plug and check valve.....

 

[MacAttack]

I might have what I need but not sure what I'm looking at and whether I have a check valve or not....but I do have 2 welch plugs.

What is that TINY brass plug thing??

 

[Rallyeguy]

For all you 125 aficionado's I have finally made up reproduction stickers for the Super Pro 125, and 125C saws.

Should be the best reproduction available as far as looking correct.

https://www.oldsawshop.com/McCulloch-Super-Pro-125-Stickers-c178373878

I also am working on some 10 series early style stickers. Some are very accurate but the really early style I'm making are not embossed like the originals. These are run but need to be cut....Hopefully sometime this next week.