Definitions of terms

[WillieB]

I have read a lot of threads and posts and it seems to me that it would be helpful to have one thread that defines all the different terms used.
Such as :
HT engine
NT carb
4 stroking
bogging
jetting
porting
high-end
low-end

Any help in defining terms would be appreciated and, of course, any other terms in need of defining are welcome.

If this has been covered elsewhere, I can't find it, so please point me in that direction.

 

[Al.Fisherman]

I have read a lot of threads and posts and it seems to me that it would be helpful to have one thread that defines all the different terms used.
Such as :
HT engine
Common name for a Chinese frame mount engine...Happy Time
NT carb
The original stock carburetor for a HT... Different then a CNS carburetor.
4 stroking
http://www.youtube.com/watch?v=0wzph3hL6EE
bogging
Starving for fuel, like running a engine with the choke on.
jetting
The process or changing the seat, in the carburetor. This can be accomplished by solder the hole and re drill to what you want.
porting
The process of enlarging, and smoothing the intake and exhaust ports.
high-end
Top speed of the engine RPM/bike.
low-end
Above idle as in going slow/low RPM

Any help in defining terms would be appreciated and, of course, any other terms in need of defining are welcome.

If this has been covered elsewhere, I can't find it, so please point me in that direction.

Hope this helps...

 

[motorpsycho]

don't forget :
w.o.t. (wide open throttle).
t.d.c. (top dead center, when the piston is at the very top of the stroke)
b.d.c. (bottom dead center, when the piston is at the very bottom of the stroke)
rich (more fuel than air in the mixture)
lean ( more air than fuel in the mixture)
don't get the oil-fuel ratio mixed up with the air-fuel ratio mixture because they are 2 different things.

 

[Al.Fisherman]

don't forget :
w.o.t. (wide open throttle).
t.d.c. (top dead center, when the piston is at the very top of the stroke)
b.d.c. (bottom dead center, when the piston is at the very bottom of the stroke)
rich (more fuel than air in the mixture)
lean ( more air than fuel in the mixture)
don't get the oil-fuel ratio mixed up with the air-fuel ratio mixture because they are 2 different things.

I was just answering his questions, but you are right. Funny how we take those abbreviations for granted when we know them.