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Author Topic: 1977 Kawasaki KZ 750 Twin  (Read 5234 times)

Offline 750Toys

  • Posts: 70
1977 Kawasaki KZ 750 Twin
« on: Apr 04, 2017, 09:10:35 »
Advice please! :-)

Im about to pull the trigger on a clean 1977 kawasaki kz750. $1300. Whats your opinion of this bike? Desirable? A dog? What are your thoughts?

Offline diggerdanh

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Re: 1977 Kawasaki KZ 750 Twin
« Reply #1 on: Apr 04, 2017, 10:03:19 »
Solid bikes. Engine is nearly bulletproof. Desirable - not necessarily but it has a niche group of people who love them. If you stick to the standard, not the LTD, models they have a really nice frame geometry that makes them suitable for converting the bike into tracker, brat, cafe style bike. There is not a lot of aftermarket support for them, unlike a CB750 or a KZ four, so finding serious replacement parts can be an issue. But they are a typical UJM bike and most parts that fit nearly everything else will work on the KZ750 twin. They do not produce a lot of power and they are not fast. However there are only 2 carbs and 2 sets of valves, etc. so it may be marginally more easy to maintain than an inline 4.

Factory electronic ignition from later KZ750s and KZ440s can be retrofit to earlier models.

Depending on where you are located $1300 is a decent price for a good running, nicely sorted KZ750 twin.

Offline 750Toys

  • Posts: 70
Re: 1977 Kawasaki KZ 750 Twin
« Reply #2 on: Apr 04, 2017, 10:17:51 »
Solid bikes. Engine is nearly bulletproof. Desirable - not necessarily but it has a niche group of people who love them. If you stick to the standard, not the LTD, models they have a really nice frame geometry that makes them suitable for converting the bike into tracker, brat, cafe style bike. There is not a lot of aftermarket support for them, unlike a CB750 or a KZ four, so finding serious replacement parts can be an issue. But they are a typical UJM bike and most parts that fit nearly everything else will work on the KZ750 twin. They do not produce a lot of power and they are not fast. However there are only 2 carbs and 2 sets of valves, etc. so it may be marginally more easy to maintain than an inline 4.

Factory electronic ignition from later KZ750s and KZ440s can be retrofit to earlier models.

Depending on where you are located $1300 is a decent price for a good running, nicely sorted KZ750 twin.

this is super helpful and replies like yours are what make this forum great. I hear the power to weight ratio isnt great, but that it will get up to 100mph. I have a Honda 750 and I assume a kawasaki wont be as fast as that?

Offline diggerdanh

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Re: 1977 Kawasaki KZ 750 Twin
« Reply #3 on: Apr 04, 2017, 12:08:29 »
I hear the power to weight ratio isnt great, but that it will get up to 100mph. I have a Honda 750 and I assume a kawasaki wont be as fast as that?

Thank you. I'm sure it is nowhere near as quick or fast as a CB750.  IIRC the HP is rated somewhere around 50HP. Capable but not fast. But definitely has the look: horizontal backbone, twin, air-cooled, etc. And you can shave off a lot of weight if you'd like.

Offline 750Toys

  • Posts: 70
Re: 1977 Kawasaki KZ 750 Twin
« Reply #4 on: Apr 04, 2017, 15:40:13 »
Thank you. I'm sure it is nowhere near as quick or fast as a CB750.  IIRC the HP is rated somewhere around 50HP. Capable but not fast. But definitely has the look: horizontal backbone, twin, air-cooled, etc. And you can shave off a lot of weight if you'd like.

Its the part about parts being hard to find that bothers me

Online canyoncarver

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Re: 1977 Kawasaki KZ 750 Twin
« Reply #5 on: Apr 04, 2017, 16:45:51 »
I have two of these twins and really dig them.  Parts are not that hard to find. 
--

YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
KLR650, 73 Norton Commando, my never finished shovelhead chopper, an 86' FXR, and an F9 Bighorn
more YZF750R's, more KZ's, a Zephyr750...and the ever unfinished 75' CB550 cafe.
--

Offline 750Toys

  • Posts: 70
Re: 1977 Kawasaki KZ 750 Twin
« Reply #6 on: Apr 04, 2017, 17:41:04 »
I have two of these twins and really dig them.  Parts are not that hard to find.

Thanks for this. I had a discussion with a good friend off line and he said, as the first responder said, if I get the weight down, say 50 lbs, it would greatly help. So how do I get 50 lbs off this pretty bike without hacking
 it up, which I will not do?
« Last Edit: Apr 04, 2017, 17:52:30 by 750Toys »

Online canyoncarver

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Re: 1977 Kawasaki KZ 750 Twin
« Reply #7 on: Apr 04, 2017, 17:51:31 »
Thanks for this. I had a discussion with a good friend off line and he said, as the first responder said, if I get the weight down, say 50 lbs, it would greatly help. So how do I get 50 lbs off this pretty bike without hackign it up, which I will not do?

Well you'll have to get creative to drop 50 lbs (on just about any bike..) without "chopping".  If you have the money, new alloy rims would help.  Then fit new, better and lighter brake rotors and possibly different, lighter calipers.  Aftermarket exhausts are available, stock exhausts are always heavy.  Stuff like that is the "low hanging fruit". 
--

YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
KLR650, 73 Norton Commando, my never finished shovelhead chopper, an 86' FXR, and an F9 Bighorn
more YZF750R's, more KZ's, a Zephyr750...and the ever unfinished 75' CB550 cafe.
--

Offline 750Toys

  • Posts: 70
Re: 1977 Kawasaki KZ 750 Twin
« Reply #8 on: Apr 04, 2017, 17:54:27 »
Well you'll have to get creative to drop 50 lbs (on just about any bike..) without "chopping".  If you have the money, new alloy rims would help.  Then fit new, better and lighter brake rotors and possibly different, lighter calipers.  Aftermarket exhausts are available, stock exhausts are always heavy.  Stuff like that is the "low hanging fruit".

my buddy said with right tuning i can make this faster than a CB 750. What are your thoughts on that?

Online canyoncarver

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Re: 1977 Kawasaki KZ 750 Twin
« Reply #9 on: Apr 04, 2017, 18:00:52 »
my buddy said with right tuning i can make this faster than a CB 750. What are your thoughts on that?

SOHC or DOHC?
--

YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
KLR650, 73 Norton Commando, my never finished shovelhead chopper, an 86' FXR, and an F9 Bighorn
more YZF750R's, more KZ's, a Zephyr750...and the ever unfinished 75' CB550 cafe.
--