What model is it exactly?
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The power curve is very important. There are kits for your bike that will do the job, and were meant for your bike. This site has tons of info on your bike : kz400.com
The Boyer Brandsen kit in the link below is specific to your bike, I think that's the best route to go. You run out of much options for older Japanese motorcycles.:
The Boyer Brandsen kit in the link below is specific to your bike, I think that's the best route to go. You run out of much options for older Japanese motorcycles.:
Boyer Bransden Electronic Ignition Kit Kawasaki Z400 Z650 (331KIT87) | eBay
Find many great new & used options and get the best deals for Boyer Bransden Electronic Ignition Kit Kawasaki Z400 Z650 (331KIT87) at the best online prices at eBay! Free shipping for many products!
www.ebay.com
That was the kit I wanted. Unfortunately it is not valid for twins (only four)The power curve is very important. There are kits for your bike that will do the job, and were meant for your bike. This site has tons of info on your bike : kz400.com
The Boyer Brandsen kit in the link below is specific to your bike, I think that's the best route to go. You run out of much options for older Japanese motorcycles.:
Boyer Bransden Electronic Ignition Kit Kawasaki Z400 Z650 (331KIT87) | eBay
Find many great new & used options and get the best deals for Boyer Bransden Electronic Ignition Kit Kawasaki Z400 Z650 (331KIT87) at the best online prices at eBay! Free shipping for many products!www.ebay.com
I don't either. A 440 Kawasaki version of your bike wouldn't work? 
It would probably do. But KZ400 parts are 40 years old, hard to get.I don't either. A 440 Kawasaki version of your bike wouldn't work?
At the moment I have the Box00010 (Yam650/Tri/BSA twins) which I have to try at least. As soon as I'm finish another bike I'll get on it and tell you about.
Thanks mate.
Link to points conversion for your bike, (should work, your bike is listed): 1974-1978 KZ400 D ELECTRONIC IGNITION POINTS PLATE ADVANCER TYTRONIC | eBay
Here's a CDI listed for your bike: OEM Kawasaki KZ400 400 CDI Ignition Igniter | eBay
It seems that this would work, you would have to look up the schematics to see how you would wire it.
Here's a CDI listed for your bike: OEM Kawasaki KZ400 400 CDI Ignition Igniter | eBay
It seems that this would work, you would have to look up the schematics to see how you would wire it.
In the first case it is a transistorized ignition that only replaces points and condenser (it does not have CDI functions). I used one for a while, it worked fine but doesn't add much (maybe better spark, better starting and better idling). If anyone wants it, I still have it available.Link to points conversion for your bike, (should work, your bike is listed): 1974-1978 KZ400 D ELECTRONIC IGNITION POINTS PLATE ADVANCER TYTRONIC | eBay
Here's a CDI listed for your bike: OEM Kawasaki KZ400 400 CDI Ignition Igniter | eBay
It seems that this would work, you would have to look up the schematics to see how you would wire it.
In the second, that's a voltage regulator. Some time ago I replaced it with an electronic one, much more effective.
If it doesn't go smooth, then the points plate is probably binding. My CB400F had points and went like a bat out of hell all the way up to 10,000 rpm's and around 115 mph stock. Afterwards, with the Yoshima kit, it redlined at 14,500 rpm's, and went like a bat out of hell all the way up to 136 mph (clocked), and it still hand points. I eventually switched to a Dynatek, because I could get one reaally cheap, but points work fantastically well if set up right. My M.G. Midget has a dual point Mallory Distributor, and the very modified motor it one of the fastest MG Midgets ever made, that was still roadable. Old has nothing to do with it. A well tuned engine just needs everything set up properly. Points plates, I have seen people with them binding, or way to loose, and was shocked the bike still ran. One thing, in the event of a Nuclear attack, the EMP (Electro Magnetic Pulse) won't affect your points ignition system. Survivalists take note.
I don't really think so. The conversion kits were for people who really hated the inconvenienc e of adjusting their points. COnsidering this is something you can do on the road, I carried a new set of points and condensor with me, in every vehicle I owned that had points. They relied on the breaker plate that the points used, they only replaced the points. My '83 GS750ES, which I purchased new, used a 1 year only CDI. They cost like $600 bucks to get fromm Suzuku. The 1150 Suzuki fits, and will get your bike moving, but has the wrong power curve, and there is no way to adjust that. I purchased a couple off of EBAY in the event the original went bad. I took one apart, Suzuki actually removed all the component part numbers, they cannot be repaired. I am a liscened Electronic technician, RCA did that with their TV's, which was why I never recommended them to anybody. As long as there is suffficient cam lube on the parts that slides on the cam for opening and closing the points, they last a long time. Most people I knew never lubed them and wondered why after a couple of hundred miles, the points would close up.
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