Mc10 mag carb pop off

[steve cox]

hi guys  i have a McCulloch Mc10  Magnesium carburetor witch has a ball seat. i have been trying to set  pop off but it will not hold after popping off just slowly leeks down. i have another  mag carb that works great and it likes around 10 pounds  pop off it starts easy  and works well the ball seat on the first seat dosent look damaged it has a 1/8 ball. if i set the pop off over 10 pounds  like 15  and up  it will not start. has anyone else had this problem. i can switch carbs to a tillitson  and it fires up and runs good

[Terry Sullivan]

Steve,
I have a few of those carbs, but I never run them.  I use tillys.
If you don't get any answers here, you might try the VKA facebook site.
Steve O'hara, or someone else might chime in.

https://www.facebook.com/groups/31305126...p_activity

terry

[steve cox]

Steve,
I have a few of those carbs, but I never run them.  I use tillys.
If you don't get any answers here, you might try the VKA facebook site.
Steve O'hara, or someone else might chime in.

https://www.facebook.com/groups/31305126...p_activity

terry

thanks terry

[steve cox]

good news i took a 1/8 ball end dremel and cleaned up the ball seat by hand and it pops off around 12 and holds at 10 psi with light oil

[steve miller]

nice ...that's a good hack ....
I hate anything with a gross valve ..maybe this will ease the hate ...lol..
anything I ever tried was very inconsistent ...

[steve cox]

nice ...that's a good hack ....
I hate anything with a gross valve ..maybe this will ease the hate ...lol..
anything I ever tried was very inconsistent ...

steve  when did they switch to  gross ball valves in the flatbacks , i have a pair of Mc20 carbs with ball valves maybe they were changed later i am running only Mc 5,6,10s

[steve miller]

ohhh jeee ur askin wrong guy ..im thinkin ..factory they was all needle and seat ..???
until they stopped making them ..???