Puffing from carbs but compression seems okay

  • KZOO440
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Re: Puffing from carbs but compression seems okay

17 May 2019 15:26
#804053
I am rotating the engine counter clockwise.

I checked the points with an ohm meter and the resistance spiked right at the F mark. I will check the gap to make sure but the spark plugs seem to have a good spark.

I am also thinking about putting the crank at the " mark and adjusting the valves there. The piston shouldn't be at TDC there but since it is it seems like that would be the right palce to adjust at.
1980 KZ440 LTD

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  • Warren3200gt
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Re: Puffing from carbs but compression seems okay

17 May 2019 15:46
#804055
Why counter clockwise? Engine runs clockwise.

Z1000J2 somewhat modified!

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Re: Puffing from carbs but compression seems okay

17 May 2019 15:56
#804056
The manual I have says to turn it counter clockwise. When I hit the starter the crankbolt on the right side of the bike spins counter clockwise.
1980 KZ440 LTD
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  • Scirocco
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Re: Puffing from carbs but compression seems okay

17 May 2019 16:16
#804058
Warren, all Kawasaki twins are running counter clockwise.
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  • TexasKZ
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Re: Puffing from carbs but compression seems okay

17 May 2019 16:29
#804059
Warren3200gt wrote: Why counter clockwise? Engine runs clockwise.

I am pretty sure that all the KZ twins rotate ccw when viewed from the ignition side. Yes, that is opposite of the four cylinder engines.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24
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Re: Puffing from carbs but compression seems okay

17 May 2019 21:08
#804065
Scirocco wrote: Warren, all Kawasaki twins are running counter clockwise.
Thats just weird, why would khi do that?

Z1000J2 somewhat modified!

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  • Patton
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Re: Puffing from carbs but compression seems okay

18 May 2019 07:26 - 20 May 2019 06:06
#804077
The BSA twins also ran ccw aka backwards (i.e., crankshaft rotation being opposite that of wheels when bike is rolling forward).
Yet Triump's ran cw (I think).
Go Figure.

Kevin Cameron explains (scroll down to the video and direction of crankshaft revolution begins at about 2:20 minutes into the video).
www.accessnorton.com/NortonCommando/whic...engine-rotate.26851/

I found the entire video to be very informative. Especially about the big name manufactures now moving toward ccw crankshaft rotation.

One stated advantage is creation of an opposing gyroscopic force to offset the gyroscopic force of forward turning wheels, which makes for better cornering dynamics.

Good Fortune! :)
1973 Z1
KZ900 LTD
Last edit: 20 May 2019 06:06 by Patton.

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  • Warren3200gt
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Re: Puffing from carbs but compression seems okay

18 May 2019 10:26
#804087
Surely the same argument would hold true for 4 cyyinders though? But they are all cw.
Does anyone one know if the new khi twins are ccw?

Z1000J2 somewhat modified!

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  • KZOO440
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Re: Puffing from carbs but compression seems okay

19 May 2019 16:35 - 19 May 2019 16:35
#804195
So I checked the points gap and it was small so I adjusted it to .35mm.

I also advanced the timing as far as it could go (rotated the plate clockwise). The bike is firing fairly consistently but now the starter clutch is slipping so much it wont sustain.

Looks like thats the next step!
1980 KZ440 LTD
Last edit: 19 May 2019 16:35 by KZOO440.

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  • 650ed
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Re: Puffing from carbs but compression seems okay

19 May 2019 17:15 - 19 May 2019 17:16
#804198
KZOO440 wrote: ...................but now the starter clutch is slipping so much it wont sustain..........

What motor oil are you using? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 19 May 2019 17:16 by 650ed.

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Re: Puffing from carbs but compression seems okay

14 Mar 2020 10:49
#820896
Alright, life has been super busy but I finally have time to spend on the bike and updating this very old topic.

The cause of the problem was the pin on the backside of the timing plate that holds it in place. I replaced the pin and it fired right up! Having it broken and loose like that explains why my TDC mark was not lining up with the pistons.

When I was first having the problem I found a post that had a picture of the pin and how to get to it but I cannot find it now.

Hope this helps someone else in the future. thanks to everyone who chimed in!
1980 KZ440 LTD

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