White Build-up in Exhaust
 

I took my muffler off my 147 to fix an exhaust leak, and noticed this white build-up inside. Is it normal or anything to worry about?

I could try to get better pictures if these are not good enough.

Looks like she been running a tad lean. how does the plug
look?

I probably should have mentioned that I put a new spark plug in about 4 months ago and that one had a build up like that. Here is a picture of the one in it now.

can you post a picture of the end. Center electrode?

Is this any better?

How often are you adding oil to it?

Looks like your DEF nozzle is leaking! :biggrin2:

Seriously, looks like you're burning some oil, and hot! Have you checked the timing? Tuned the carb? Checked the head gasket?

I have to add oil almost every time I use it.
I have not checked any of that stuff, but I'm guessing I should.

That's what I figured. Oil burner.
Might be a tad lean, but it looks more like you just use it and get it hot while working it. Not much you can do short of an overhaul. I'd still make sure the carb it tuned right. Itherwise, put it back together and run it until you can get a new motor.

I build them by the way....

I'll check the carburetor and keep using it. I want to get it rebuilt eventually.