looks pretty cool at night, but don't remember my 27 shootin flames out the exhaust. Is this just a fuel problem? maybe runnin to rich?

what color is the flame? You might be to lean. Get yourself some new plugs. run it then check them.

I never noticed it before but my buddy said mine shot out a small blue flame when I backed off the throttle quick and also one time when we hit a shallow spot and the motor kicked up.

it was a steady blue flame.......I changed plugs and actually haven't noticed it since.

Ran about two miles up the lake today in the dark and the flame is back. It shot flames out the exhaust almost the whole time. Any ideas?

Noticed the same thing Sat morning. Steady blue flame coming out of the muffler. Almost like a blue neon light coming out of the exhaust. Are you running an electric fuel pump by chance? I just added one, and this is the first time I noticed it. Not sure if it is related or not, but I thought I would ask.

I have pd 36 with evt exhaust with no feul pump and it has a cool flamin also It had a flamin with the stock exhaust also

This is the first time I have run the motor with the new muffler in the dark... I can't see the back of my motor in my set up while running, so the stock PD could have done the same, and I would have had no idea! LOL

no, i'm not runnin an elec. fuel pump.