shifi

I got a Magnum 61 two stroke i bought about 6 months ago. The other day I noticed the muffler was loose, so i took it off to put some thread locker. I looked through the exaust port and noticed it was pitch black. I take the head off the engine and see the same color on the piston. this is the second 61 I buy. The first one was also overheating. Im positive its not running lean its actually slobbering rich. thanks in advance.


Just in case it matters
Prop: 12x7- Zinger/12x8- Master Airscrew
Plug: O.S. type F
Fuel: PowerMaster 15%nitro 18% castor/synthetic

w8ye

My Feedback: (16)

It sounds like it's in pretty good shape to me?

How's the compression?

Enjoy,

Jim

Gizmo-RCU

My Feedback: (27)

Sounds real healthy, just like mine!

Flyboy Dave

My Feedback: (21)

The black color is not a problem. Try an 11-7 1/2
MAS in it. If your using the newer 12-8, it might be
a wide series prop. Your engine won't like it.

shifi

doesnt the black color mean that the engine is running too hot?