Points Gap for KZ750 Twin

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18 Dec 2010 07:03 #417557 by Hopper
Points Gap for KZ750 Twin was created by Hopper
The manual I have for my twin say the point gap is .7-.8mm. When I use the conversion factor of.03937 I get a gap of
.027-.031 thousands. It this right. Most of my bikes use
.012-.016 thousands. I am dealing with a weak spark at the plugs and hard starting especially in cold weather below
32 degrees.

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18 Dec 2010 07:40 #417562 by Patton
Replied by Patton on topic Points Gap for KZ750 Twin
Hopper wrote:

The manual I have for my twin say the point gap is .7-.8mm. When I use the conversion factor of.03937 I get a gap of
.027-.031 thousands. It this right. Most of my bikes use
.012-.016 thousands. I am dealing with a weak spark at the plugs and hard starting especially in cold weather below
32 degrees.

Weak plug spark may result from several maladies besides points issues.

Would first measure voltage being received at the coil primary terminal, which is supposed to match battery voltage.

Such voltage measurement will help indicate where to look next toward identifying cause underlying the weak plug spark.

Good Fortune! :)

1973 Z1
KZ900 LTD

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18 Dec 2010 11:46 #417614 by bountyhunter
Replied by bountyhunter on topic Points Gap for KZ750 Twin
Hopper wrote:

The manual I have for my twin say the point gap is .7-.8mm. When I use the conversion factor of.03937 I get a gap of
.027-.031 thousands. It this right. Most of my bikes use
.012-.016 thousands. I am dealing with a weak spark at the plugs and hard starting especially in cold weather below
32 degrees.

I recall the point gap for my 750 twin is 0.3 to 0.4mm which is .012" to .016" (nominal .014"). The 0.7 to 0.8mm spec is for spark plug gap.

1979 KZ-750 Twin

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