I would say no but if you know a good engineer or if you're a dab hand at metal work you'll be able to mod them to fit
SOURCE: left exhaust pipe is turning a gold colour for approxiamtely 12 inches from the engine
It is normal. One cylinder & pipe are a bit hotter than the other. It is not at all unusual to see one pipe discolored more than the other.
SOURCE: Oil leak by exhaust pipe
I am not personally familiar with a 1975 DT250, but here is a general overview. If the bike is a 4 stroke, the oil you observed could have been from the exhaust, however it is more likely that it is from a leaky valve cover gasket or a head gasket. If the bike is a 2 stroke, the "oil" is from the exhaust (expansion chamber). It is excess 2 stroke oil that accumulates. You should reduce the mix to 32:1 or even 40:1 and replace the oring gasket in the opening of the pipe. If in a pinch you can use high temp silicone, but not a good way to go.
best wishes!
SOURCE: 2004 rm 85, 2 stroke
The silcolene does not burn as well as standard two stroke oil. The unburned oil has to go somewhere and out the exhaust is it. Get a new gasket anyway. It should help.
Testimonial: "thanks this is consistent with what others have told me."
SOURCE: get oil on rear fender from exhaust pipe
you probably just have too much oil in your gas. Its not a problem, just a waste of oil. I used to use 20:1 but i had that problem. i switched to 24:1 and it stopped.
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