having a brain fade, quick question

555 Views 5 Replies 3 Participants Last post by Jason, Nov 30, 2005

muddy

Discussion Starter · Nov 30, 2005

when the tach is showing RPM's, is that the actuail number of times that the crank turns 360 degrees, or is it it the number of times/minute that the #1 cylinder is fireing?
sorry for the newbie question, but my brain isn't working at the moment. :wall:

1 - 6 of 6 Posts

Mr Joe

· #2 · Nov 30, 2005

Crank revolutions per minute

:baby:

muddy

Discussion Starter · #3 · Nov 30, 2005

On 2005-11-30 13:18, Mr Joe wrote:
Crank revolutions per minute

:baby:

so in that case, if the tach is reading, lets say, 5000RPM, the #1 cylinder is fireing 2500 times per minute?

Mr Joe

· #4 · Nov 30, 2005

If the plugs are good

:

:baby:

muddy

Discussion Starter · #5 · Nov 30, 2005

thaks,
that's what I thought, but for some reason I was thinking it was something diffirent.

Jason

· #6 · Nov 30, 2005

Wouldn't it be 1250 times per minute?

5000 rpms's
4 strokes
=
1250 times per minute

Edit: Nevermind. 2 strokes = 1 revolution. Carry on.

1 - 6 of 6 Posts

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