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intake & exhaust timing
Posted: Fri May 25, 2001 7:40 pm
by joseph_tashiro@hotmail.com
How many degrees past TDC does EX valve begin opening?
How about intake valve.
I have a set of aftermarket cams with no arrows indicating the proper
alignment.Do you have any tips on how to set the IN & EX timing.
either at what o'clock are the cam lobes facing at TDC?
even ballpark figures will help and I will do some experimenting.
Right now I have the EX cam just about to open & the intake just
closed.is this correct?
Has anyone changed EX & IN timing for better low end or mid range
torque?
intake & exhaust timing
Posted: Sat May 26, 2001 3:30 am
by professor.jim@worldnet.att.net
Joseph,
The supplemental service manual has the valve specs for opening,
closing & duration on page 1-4. The stock Kawi cam sprockets have
2 lines on each sprocket that line up with the top of the cylinder
head, with the arrows pointing toward the front of the engine when
the crankshaft is at TDC.
Adjusting the valve lash to Kawi's max recommendation (0.008" intake
and 0.010" exhaust) will give you improved low end & mid range power.
This may NOT apply to "high performance" after-market cams.
Kawi valve clearances tighten up over time.
Professor A9 Federal Way, WA. [USA]
ps: Is it possible that you have the stock cam sprockets, but they
are bolted to the cams with the timing marks facing toward the
spark plug? The marks should face the left side (outside) of the
engine.
+++++++++++++++++++++++
--- joseph_tashiro@h... wrote:
> How many degrees past TDC does EX valve begin opening?
> How about intake valve.
> I have a set of aftermarket cams with no arrows indicating
> the proper alignment.Do you have any tips on how to set the
> IN & EX timing.
> either at what o'clock are the cam lobes facing at TDC?
> even ballpark figures will help and I will do some
> experimenting.
> Right now I have the EX cam just about to open & the intake just
> closed.is this correct?
> Has anyone changed EX & IN timing for better low end or mid range
> torque?
help, i am rejetting and it ain't like the pictures!!! that k&n sho
Posted: Sun May 27, 2001 10:29 am
by Biff Frenzy
Hi collective KLR members,