It could be condensation from hot exhaust gases on the cool exhaust pipe.
I don't think so. Pvc pipe cannot even used for hot water distribution. I don't know how hot the engine exhaust is, but I'm pretty sure it would melt the pipe. ( I am a master plumber.) The temperature of the exhaust just after the catalytic converter can reach 700 degrees F.
That's all down to how hard you run the engine. They can get glowing hot up by the exhaust ports.
Not only is it wrong to use on single wall pipe but is ABSOLUTELY WRONG,WRONG to use single wall pipe!!! replace immediately w/double wall pipe. You have an extremely dangerous fire hazard! almost any gas fueled device produces exhaust which can get extremely hot. A secondary benefit(besides not turning into a crispy critter) of using properly installed double walled pipe is no need to wrap w/insulation. Not only is it wrong to use on single wall pipe but is ABSOLUTELY WRONG,WRONG to use single wall pipe!!! replace immediately w/double wall pipe. You have an extremely dangerous fire hazard! almost any gas fueled device produces exhaust which can get extremely hot. A secondary benefit(besides not turning into a crispy critter) of using properly installed double walled pipe is no need to wrap w/insulation.
There are a couple websites that have tutorials on an exhaust system pipe bender and the best methods to use. Check the hotrodder.com forums. Someone asked about an exhaust pipe bender and there are several good responses.
Pretty damn hot i burnt my leg on one three years ago and i still have a huge scar.
Could be that the muffler is clogged, it is running extremely lean, or there is unspent fuel burning in the exhaust pipe. This is not completely uncommon and may not be a sign for alarm.
only one cylinder if firing
Due to the type of metal used in the production of the exhaust pipes, it is very normal for any motorcycle exhaust pipe to turn red when running, especially at an idle. When the bike is moving the air cools the pipe. That is why the street bikes have chrome covers, so you don't see the red/blue pipe.
your oxygen sensor should be located on your exhaust manifold or on the exhaust pipe near the exhaust manifold, Make sure your engine is cool before placing your hands on the exhaust manifold, It can be very hot!
On the exhaust pipe. One is under the "HOT" plate, one is under the engine.
No. That hot tub will evaporate so quickly,it is a high risk to human beings.