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engine running on 2.5 cylinders? 10 years 3 weeks ago #5133

  • zed_thirteen
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Manual is wrong. Think they managed to confuse full turns and half turns.

They need to be about 3.5 turns out as a starting point
1980 KZ1300 B2 Touring/A2
1990 ZZ-R1100 C1
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engine running on 2.5 cylinders? 10 years 3 weeks ago #5134

  • met1212
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this could be my problem as i have always set them at 1.5 turns, as per manual.
i will try 3 - 3.5 and see what happens tomorrow....

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engine running on 2.5 cylinders? 10 years 3 weeks ago #5135

  • met1212
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i know the coils on these models were a little suspect....
can you suggest what available as a proven replacement?

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engine running on 2.5 cylinders? 10 years 3 weeks ago #5139

  • kennyb
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Dyna,Nology or I was looking at one time some house brand coils for Harley s on Ebay. I currently run Dyna with Moroso Magtune wires that were designed to fit a Chevy inline 6.But before you start throwing parts at problems physically look at them and verify that they are indeed cracked. My original coils were cracked and previous owner had the wires held together with electrical tape :blink:

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engine running on 2.5 cylinders? 10 years 3 weeks ago #5148

  • met1212
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hi bill, not sure what you mean check fuel levels using the wet method....?
can you elaborate?

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engine running on 2.5 cylinders? 10 years 3 weeks ago #5149

  • KZQ
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Hi Met1212,

I've long believed that the alcohol that's added to current day fuels attacks the foam plastic floats that the 13 uses. The floats gain weight and allow the fuel level to rise in the bowls till the cylinders start running rich. I can't tell you how many time I've found and heard of others fighting sooty/wet plugs. Particularly, on cylinders 1 & 2 (lower while on the side stand). After way too many attempts to clean or adjust my carbs I finally followed the instructions in the service manual and set the floats by the wet method. I ended up radically bending the tangs to get the fuel level to between 5.5mm and 8.5mm below the bowl gasket. With this adjustment my bike finally started running clean. Last time I checked the fuel mileage I got a little over 40 MPG.
I believe that Scotch has similar stories to tell. His solution was to build a set of custom brass floats, which he is currently offering for sale see his posting here:
www.kz1300.com/index.php/forum/carburato...ting-the-float-level
There are a set of Scotch's floats in the mail coming my way right now which I intend to install this winter. I'll post up the effort when I do.
If your floats have gained weight over the years no amount of setting the float level dry will give any meaningful results.
The wet method is quite simple. Just be sure to use the smallest diameter tubing you can find as any air in the measurement tube will result in inaccurate readings.



Best of luck to you.

Bill
1947 Indian Chief, 1968 BSA Shooting Star, 1970 BSA 650 Lightning, 1974 Kawasaki W3, 1976 KZ900 A4, 1979 KZ750 B4, 1979 KZ750 B4 Trike, 1980 KZ550, 1981 KZ1300, 1982 KZ1100 Spectre, 1985 Kawasaki ZN1300, 1987 Yamaha Trail Way, 2000 Honda Valkyrie Tourer, 1981 GL 1100, 2009 Yamaha RoadLiner S

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