Vm29's jetting on a '77 1075

mtkawboy
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01 Sep 2012 20:29 #546109 by mtkawboy

Replied by mtkawboy on topic Vm29's jetting on a '77 1075

1105 motor mixture screws 1/8 out, 17.5 pilot 120 mains but Im at 3750 ft

78-KZ1000/1105, 80 KZ1000, 82 Kawasaki GPZ750, 95 Harley Fatboy, 80 Suzuki GS1100ET, 81 GS1100E parts bike, 83 GS1100SD Katana/1394,78 Yamaha XT500, 81 Yamaha XS650, 78 Yamaha XS650E, 48 Whizzer model J motorbike, 71 Honda CT70H, 71 Honda CT70, 81 IT 250 Yamaha,82 Honda XL100S owned

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gd4now
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Denco where did you go?

01 Sep 2012 22:21 #546122 by gd4now

Replied by gd4now on topic Vm29's jetting on a '77 1075

Though I do agree that the pilot circuit does most effect idle to about 1/4 throttle, keep in mind that it continues to provide air/fuel mix throughout the entire throttle range. It is just that other circuits come into more prominence past 1/4 throttle.

1977 KZ650 B1
Pods and Denco header

OLD KAW OWNERS SMILE ALOT

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BlackZ1R
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Kawasaki in my blood

01 Sep 2012 22:22 #546123 by BlackZ1R

Replied by BlackZ1R on topic Vm29's jetting on a '77 1075

mtkawboy wrote: 1105 motor mixture screws 1/8 out, 17.5 pilot 120 mains but Im at 3750 ft

1105

Street ride or drag bike?

Kawasaki

Someone once told me to marry that motorcycle I was riding ......there's times I wish I hadda listened .

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BrandonTKZ
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03 Sep 2012 12:01 #546361 by BrandonTKZ

Replied by BrandonTKZ on topic Vm29's jetting on a '77 1075

Im at sea level, my mixture screws are around 1/4 out and it occurs at w.o.t. so i know its the mains. i see that a couple people run 130's with the 1075 so ill buy a set of those and a set a few smaller. soon ill have a whole collection :laugh:

1977 KZ1000 ~ Wiseco 1075cc

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BlackZ1R
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Kawasaki in my blood

03 Sep 2012 13:56 #546388 by BlackZ1R

Replied by BlackZ1R on topic Vm29's jetting on a '77 1075

BrandonTKZ wrote: Im at sea level, my mixture screws are around 1/4 out and it occurs at w.o.t. so i know its the mains. i see that a couple people run 130's with the 1075 so ill buy a set of those and a set a few smaller. soon ill have a whole collection :laugh:

I've found you can't have too many jets if you want it spot on.

Didn't Paul McCartney write a song about this??? :silly: :cheer:

Kawasaki

Someone once told me to marry that motorcycle I was riding ......there's times I wish I hadda listened .

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mtkawboy
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03 Sep 2012 18:32 #546441 by mtkawboy

Replied by mtkawboy on topic Vm29's jetting on a '77 1075

Street bike, retired long time ago street racer

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4TheKZ1000
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03 Sep 2012 19:15 #546446 by 4TheKZ1000

Replied by 4TheKZ1000 on topic Vm29's jetting on a '77 1075

VM29's are great carbs for this setup....abit of tuning and you will be very happy. Just keep chasing it...sounds like your very close. There has been some gr8 info in the thread.

Never do carb tuning without reading the plugs. If you do major tweeks, install new plugs and see how they burn in...they can tell you how the motor likes the jump. Also make sure you are clean with the air filters, dont try to tune with dirty old air filters.

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BrandonTKZ
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04 Sep 2012 14:15 #546608 by BrandonTKZ

Replied by BrandonTKZ on topic Vm29's jetting on a '77 1075

Yeah I feel like I'm really close because it runs great everywhere before wot. I got all four brand new UNI filters. I'll put the larger jets in and I'll have to do a wot shut down run to see what the plugs look like.

1977 KZ1000 ~ Wiseco 1075cc

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4TheKZ1000
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04 Sep 2012 15:36 #546628 by 4TheKZ1000

Replied by 4TheKZ1000 on topic Vm29's jetting on a '77 1075

just get some champions should run 8 to 12 bucks for 4 of them....get it right then burn the $$$$$ ones if that is your choice....I run cheap ones....never had a prob.

Good luck - safe riding is no mistake.

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BrandonTKZ
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07 Sep 2012 14:34 #547305 by BrandonTKZ

Replied by BrandonTKZ on topic Vm29's jetting on a '77 1075

I put the bigger jets in, no luck. I think I'm just going to have to break down and take it to this mechanic I know :blink: , he used to drag kz's that what he specializes in maybe he will have an idea.

1977 KZ1000 ~ Wiseco 1075cc

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saxjonz
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KawboyZ

14 Oct 2012 00:05 - 14 Oct 2012 00:09 #553711 by saxjonz

Replied by saxjonz on topic Vm29's jetting on a '77 1075

Have you sorted it out yet?

79 LTD B3
80 LTD B4 1075 kit JE Pistons .410 cam grind, Bassani, 31 keihin CR Specials...
1980 Z1R, 2002 ZRX1200, 2003 ZRX1200

Last edit: 14 Oct 2012 00:09 by saxjonz.

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mtkawboy
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14 Oct 2012 17:20 #553816 by mtkawboy

Replied by mtkawboy on topic Vm29's jetting on a '77 1075

My street motor has a Super Bike Mike ported head, 10.25-1 pistons, 1105cc, shim on top 395 lift 260/260 cams, Dyna electronic ignition and Dyna coils plus a Kerker 4-1 with just an end plate on it, no guts inside. motor was built in 1978 or 79. Just trying to give you an idea of the combo that goes with the jetting. Correct float level is critical

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Vm29's jetting on a '77 1075

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