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Hello all,
When I start my marauder, the exhaust coming out of the back end never heats up, any ideas? I tried swapping spark plugs but that does not seem to fix it.
Thank you for your time.

Hello there moomoo, and welcome to the forum. What I get from your post is that you don't think your exhaust gasses are getting hot enough. Other than that how does your bike run?

It isn't running well, I don't think it is pulling air in the back end. When I shoot a little starter fluid into the air filter the engine does not rev up.

Air comes in through the carburetor, mixes with gasoline, then goes though the combustion chamber and exits through the exhaust. Have you tried running some Seafoam® or other carb cleaner in you gas?