Won't Idle

  • ndfez
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Won't Idle

22 Apr 2010 20:53 - 27 Apr 2010 19:06
#362512
MY KZ750 resurection
Last edit: 27 Apr 2010 19:06 by ndfez.

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  • otakar
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Re: Won't Idle

23 Apr 2010 05:40
#362547
Need more information about your bike. " Hay doctor, my pet wont let me touch them, can you tell me what is wrong with them?" Get the idea? ;)
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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  • Patton
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Re: Won't Idle

23 Apr 2010 15:35
#362675
479
1973 Z1
KZ900 LTD

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  • TeK9iNe
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Re: Won't Idle

23 Apr 2010 15:57
#362680
:laugh: :laugh: :laugh:

Anyways...

The idle adjust knob is attached to the carbs/rack.

It is usually about a 3/4 inch large thumb style screw that you can turn in/out about maybe 8-10 times before it stops or falls out. Turn it in to watch the idle and carb slides increase/lift.

Some have it on the bottom back side. Some on the bottom front... some on the top right. But they all look reletively the same.

GL

B)
Motorcycle Shop Owner/Operator

79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors ;)

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  • Patton
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Re: Won't Idle

23 Apr 2010 16:23
#362694
Here's one example.

Good Fortune! :)

[Click on image to enhance view.]

500
1973 Z1
KZ900 LTD

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  • Jodyb17
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Re: Won't Idle

23 Apr 2010 17:13
#362703
Back when my bike was running it seemed like I always had to fool with this screw to get it to idle correctly.

Is this a set it and forget it screw, or does it need regular attention by design?
1977 KZ 650 C

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  • JR
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Re: Won't Idle

23 Apr 2010 18:39 - 23 Apr 2010 18:40
#362724
ndfez wrote:
MY KZ750 won't idle any ideas?Were is the idle knob adjuster located at?

If your 750 is an 80 or 81 four cylinder then your idle knob is between carbs 2 nd 3 underneath and pointing down and back. Dont know about twins or later models.

.............and it should be set when well warmed up and forget
1980 kz750E1, Delkevic exhaust
Last edit: 23 Apr 2010 18:40 by JR.

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Re: Won't Idle

25 Apr 2010 07:04
#363011
Thanks for all the help got the 750 to idle,now number 2 an 4 sparkplugs are getting burned black why is this?

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  • jswag5
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  • whats the big deal about harley, i prefer 4 cyls!!
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Re: Won't Idle

25 Apr 2010 07:32
#363013
too rich or getting oil in the cylinders.
82 kz1000p
83 yammie xj750mk bobber
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RECENT 81 honda goldwing(barn fresh with 15000 on the clock)
if you cant fix it with a hammer and duct tape, get a bigger hammer and more duct tape!!

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Re: Won't Idle

25 Apr 2010 08:05
#363019
Oil in the cylinders,is this bad gasket?Is there a adjuster for the oil?

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  • Patton
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Re: Won't Idle

25 Apr 2010 09:07 - 25 Apr 2010 09:14
#363045
ndfez wrote:
Thanks for all the help got the 750 to idle,now number 2 an 4 sparkplugs are getting burned black why is this?

jswag5 wrote:
too rich or getting oil in the cylinders.

Possible causes might also include:
-- Weak spark;
-- Wrong size spark plug;
-- Insufficient compression.

Good Fortune! :)
1973 Z1
KZ900 LTD
Last edit: 25 Apr 2010 09:14 by Patton.

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  • polkat
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Re: Won't Idle

25 Apr 2010 11:22 - 25 Apr 2010 11:26
#363088
Is the black stuff on the plugs dry and fluffy or wet and oily? What do you smell on them? You said you see oil in the cylinders? Bad rings or worn valve seals/guides/stems. But considering you've been adjusting for idle problems, those cylinders might be running rich.
Last edit: 25 Apr 2010 11:26 by polkat.

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