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Author Topic: 1980 KZ250 Cafe Build  (Read 2854 times)

Offline The Limey

  • Posts: 407
  • Evil English Villain
Re: 1980 KZ250 Cafe Build
« Reply #20 on: Jul 07, 2018, 04:32:27 »
I must admit I do too.  A pleasant change from CB twin drudgery.
I was born a rocker.  I'll die a rocker.  And I'm proud of it.

Offline phomeniuk

  • Posts: 23
Re: 1980 KZ250 Cafe Build
« Reply #21 on: Jul 08, 2018, 20:13:42 »
Well I pulled the motor today so that I could do some spot sanding and paint the frame. Wanted to be able to flip the frame to weld the bottom of my electrics pan too. Upon flipping the frame I noticed there was a small crack on the passenger peg bracket so I cleaned it up and welded it. Thought I'd inspect the rest of the frame and found 2 more hairline cracks so I did the same to them. Glad I caught all that. Well I got the rest of the unused brackets cut off and ground smooth and was able to get the frame, engine mounts and triples primed and first coated then I ran out of paint (Sunday so no stores were open by the time I needed more paint)

Need to do a little cleanup on the motor then everything can go back together.

While everything was drying I tried to spoon on my new front tire and punctured the tube. This was about 10 minutes after I punctured a tube spooning a tire onto my DRZ, so I've decided to retire from the tire changing game. Apparently I don't have the patience for it.

Anyway, after I get another coat of paint on the frame and engine mounts and get everything back together the only thing left to do will be the tank. It's got a hole in it where the nameplate mounts which I can fix easy enough but I also need to weld a small bracket onto it so i can bolt it to the frame. Working up the welding courage to do this but might just take it to a buddy that has a tig so I don't frig it up.

That's all for now. Hoping to have mostly everything wrapped up within the next week so I can get her out for a couple short test rides.

Offline scott s

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Re: 1980 KZ250 Cafe Build
« Reply #22 on: Jul 09, 2018, 17:11:58 »
 Here's one I did several years ago. Mine was free to start with!
 There's a build thread for it here somewhere but alk the pics are gone, because F.U. Photobucket.


Offline advCo

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  • Nick Ol' Eye
    • adventur Studios
Re: 1980 KZ250 Cafe Build
« Reply #23 on: Jul 09, 2018, 18:13:01 »
Looks like yours has a Mikuni VM carb. Mines an '82 and it has a CV. Hmm..may be worth a look.
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline phomeniuk

  • Posts: 23
Re: 1980 KZ250 Cafe Build
« Reply #24 on: Jul 09, 2018, 20:29:14 »
Looks like yours has a Mikuni VM carb. Mines an '82 and it has a CV. Hmm..may be worth a look.
I found your build when I started to consider doing mine and really liked what you did with it. Nothing like a free bike to get w build started eh?

I never really question the carb that's on my bike, but I do know that it was the source of some poor idle issues until my father rebuilt it about a year before giving me the bike. Now that you've mentioned it though I'll have to check next time I'm in the shed and then reference that back to the shop manual.

Offline advCo

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  • Nick Ol' Eye
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Re: 1980 KZ250 Cafe Build
« Reply #25 on: Jul 10, 2018, 10:08:38 »
I found your build when I started to consider doing mine and really liked what you did with it. Nothing like a free bike to get w build started eh?

I never really question the carb that's on my bike, but I do know that it was the source of some poor idle issues until my father rebuilt it about a year before giving me the bike. Now that you've mentioned it though I'll have to check next time I'm in the shed and then reference that back to the shop manual.

Mine wasn't free. I wish it was  :o

I'd rather have the VM, I hate CV carbs lol
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline advCo

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Re: 1980 KZ250 Cafe Build
« Reply #26 on: Jul 10, 2018, 12:08:02 »
Was this bike running well with the Mikuni on it/without the stock airbox? Mine didn't come with the airbox and I have a couple VM's lying around. If yours was running well I may bug you for jet/needle sizes etc.
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline scott s

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Re: 1980 KZ250 Cafe Build
« Reply #27 on: Jul 10, 2018, 12:33:08 »
 Mine came to me with that Mikuni carb. That bike is long gone. Any info on jetting would be in the build thread somewhere,  if there is any. Unfortunately, I don't remember what they were.
 It ran fine once I got it sorted. Sold it to a guy who rode it all over the place for years. I saw it for sale on eBay or Craigslist a few years ago and it was still going strong.

 Search for "The Mosquito KZ250" here. Unfortunately,  the pics are dead.  I think I lost that entire album when Photobucket showed their ass a year or two ago.

Offline phomeniuk

  • Posts: 23
Re: 1980 KZ250 Cafe Build
« Reply #28 on: Jul 22, 2018, 09:48:57 »
Short little update today. Finally at the reassembly stage of the project. Engine is back in the frame and rear end is put back together complete. New brake shoes and rubber, polished the machined bits on the wheel and lightly polished the cush drive hub. Chain was relatively new so I just cleaned it up and I'll hit it with wax after all other assembly is done.

My multi pin connectors finally came in so I finished rewiring the headlight cluster this morning while my wife and daughter were still sleeping. Only wiring left to do is to clean up a bit under the seat and mount a few things (regulator, battery, fuse box etc).

That's all for now. Waiting for a new tube to come in for the front tire since I punctured the last one then the front end can go back together. If all goes smoothly I should be able to get her out for a test ride by next weekend.


Offline phomeniuk

  • Posts: 23
Re: 1980 KZ250 Cafe Build
« Reply #29 on: Jul 24, 2018, 23:43:10 »
I got a little ambitious the other night and started stripping my tank. Had to fill a hole with weld, which I was a little nervous to do but it went well. Then, because I am not putting the tank badges back on I decided to mix up some body fill to smooth out the sides. There were a couple little dents that I took care of at the same time.

I also spent about 20 minutes staring at different red paints at Canadian Tire the other day, finally deciding on a deep metallic red, which I think will pair well with my brown seat and shiny new black frame. Hoping to get some paint on over the next couple nights.