Exhaust

[chainsawMal]

My mate bought a cheap saw, good enough for his garden.

 

When its revved hard you can see that inside the exhaust manifold that it is glowing very brightly and thought this may be a concern.

 

We removed the manifold and shined a touch inside it and could see a mesh in the middle from both ends. It all seemed OK.

 

Checked online and saw some comments on cats. Could this be a catalytic converter??

 

If so then it should not be a safety concern then, if that's the way it manufactured.

 

But a couple of times we seen a flame burst out of the exhaust while running hard. I suppose it must be set a little too rich??

 

What do you all think??

[MrNick]

As you say your mate bought a cheap saw....maybe the exhaust is for appearance rather than effect. Could be a cat, what make is it? the spec can usually be found with a bit of searching on line Not being disrespectful like.

[spudulike]

The mesh sounds like a spark arrestor - this is generally a steel mesh located over the exhaust outlet and is to stop pieces of burning carbon coming out of the muffler.

 

Flames coming out of the exhaust.......

Never seen that before - may just be incomplete combustion on and over rich mix - unburnt vapour finding its way in to the exhaust and igniting???