Exhaust smoke (Blue, black and white)

[jellerby]

I'm writing about exhaust smokes in college, I have chosen to do a PX model as I have a owners workshop manual and just need some more things to write about. Anything is appreciated, thanks

What do you know about smokes coming from an exhaust? (Blue, black, white)

How would you identify the problem? (I have from the colour of the smoke already)

Also, how would you go about stripping the engine down if you had too and what tools would you likely use for the job?

Thanks for the help!

Vespa PX 125 1978-1991

[henri]

blue smoke =too much oil in the mix
white smoke too rich a mix
black = fecked engine ,
as for stripping the engine ,sbwnic's splittin a p range in the frames at top of tech sections a good starter , an only special tools are flywheel holder n puller an clutch holder , rest is normal hand tools , H