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Author Topic: 1971 Kaw F8 Bison 250 goin' down.  (Read 4638 times)

Offline runmikeyrun

  • Posts: 390
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #30 on: Sep 22, 2016, 21:13:43 »
Well, buttoned up a few things today.  Checked ignition timing with a light, it's pretty close.  I cleaned the points with some 800 grit sandpaper.  I cleaned the carb really well and set all screws back to stock setting, they were way off of course.  I also discovered the head bolts were loose!  Torqued them to spec.  Installed the new rear tire and freshened up the rear brake.

I purchased a replacement ignition switch on eBay and to my surprise I found a matching NOS key from another auction. 

Old:
Yeah using a screwdriver sucks.  Well worth the $25 I spent. 

And... Got this in the mail:

I still can't believe it worked I will head to the Ohio BMV next week when the actual registration and sticker come.

So... It runs!!!!  Runs quite well actually.  It pulls pretty strong.  I think the clutch is slipping a bit.  I took a gamble when I did the new seals/gasket that it would be ok, because replacement plates/springs were $100.  Well, over the winter I'll handle that.  No biggie.  It will almost idle, i think it just needs to be ridden some more.  I rode it around the neighborhood for about 20 mins and the more I rode it the better it ran.  I put some B12 chemtool in along with some fresh gas from the pump.  We'll see how it goes.

When I get the points I will probably pick up the service manual for it, the place I go to has 3,000 manuals for sale.  If the crank seals are a bitch I will do them over the winter.  I'm debating dropping a 350 cylinder/piston into it anyways. 
END OF LINE.

Live to ride, Ride or die.

Past:
Rupp Minibike
Benelli Minibike
Tomos Moped (lol)
74 RD250
81 XT125
76 KH400
79 YZ250
77 RD400

Present:
14 Yamaha Bolt
81 KZ750E
94 XR250L
68 CL350 (in process)

Yeah, it's dangerous.  That's why I like it.

Offline runmikeyrun

  • Posts: 390
1971 Kaw F8 Bison 250 goin' down.
« Reply #31 on: Sep 29, 2016, 16:06:42 »
Well she's running pretty good!  Still won't idle but it's much better.  The more I ride it the better it runs.  Clutch seems to have gotten better too, it was slipping a little before. 

Tasks for the winter will possibly include a 350 head/barrel and corresponding jetting adjustment.  Possibly modifying the rotary intake disc.  Have to see what eBay prices are when the time comes.  Crank seals, points/condenser and possibly a voltage regulator. 

Quick vid of some light off road, nothing adventurous. 
END OF LINE.

Live to ride, Ride or die.

Past:
Rupp Minibike
Benelli Minibike
Tomos Moped (lol)
74 RD250
81 XT125
76 KH400
79 YZ250
77 RD400

Present:
14 Yamaha Bolt
81 KZ750E
94 XR250L
68 CL350 (in process)

Yeah, it's dangerous.  That's why I like it.

Offline canyoncarver

  • DTT SUPPORTER
  • *
  • Posts: 3428
  • 'hacking is learning'
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #32 on: Oct 18, 2016, 22:13:51 »
That is pretty awesome.  Looks like fun riding wherever that is. 
--
KZ400 The Rabbit
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
65 Norton, My damn Shovelhead chop
more YZF750R's, the KZ's, a Zephyr750...and the unfinished 75' CB550 cafe.
--

Offline runmikeyrun

  • Posts: 390
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #33 on: Oct 19, 2016, 01:11:24 »
That is pretty awesome.  Looks like fun riding wherever that is.
That was by my house, the area is quite small. 

Today's ride was at an abandoned brick yard.  The bike did well despite some electrical issues that took out all my lights, but who needs those in the woods. 


About 15 mins of the ride, choose HD.

END OF LINE.

Live to ride, Ride or die.

Past:
Rupp Minibike
Benelli Minibike
Tomos Moped (lol)
74 RD250
81 XT125
76 KH400
79 YZ250
77 RD400

Present:
14 Yamaha Bolt
81 KZ750E
94 XR250L
68 CL350 (in process)

Yeah, it's dangerous.  That's why I like it.

Offline advCo

  • DTT BOTM WINNER
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  • Posts: 2391
  • Nick Ol' Eye
    • adventur Studios
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #34 on: Oct 19, 2016, 03:43:03 »
Looks like a blast. I sure hope I can find some trails like that near my new place.


Sent from my iPhone using DO THE TON
"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
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
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

Offline runmikeyrun

  • Posts: 390
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #35 on: Oct 19, 2016, 19:01:20 »
Looks like a blast. I sure hope I can find some trails like that near my new place.


Sent from my iPhone using DO THE TON
I spent some company time searching google maps a few years back.  When I'm driving if I see a road going off into the woods or an abandoned factory I pull over and check google maps.  I've found quite a few spots that way
END OF LINE.

Live to ride, Ride or die.

Past:
Rupp Minibike
Benelli Minibike
Tomos Moped (lol)
74 RD250
81 XT125
76 KH400
79 YZ250
77 RD400

Present:
14 Yamaha Bolt
81 KZ750E
94 XR250L
68 CL350 (in process)

Yeah, it's dangerous.  That's why I like it.

Offline skinnej

  • Posts: 3
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #36 on: Oct 16, 2017, 08:12:31 »
I just inherited this bike. It has the carb and cover in another box.
I was hoping you could tell me what its worth. I'm not a bike builder nor interested. I also inherited a Yamaha mx 360. The Yamaha runs and sounds great.
Can you help me with setting a price and where would be the best place to advertise it.

Thanks

Offline skinnej

  • Posts: 3
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #37 on: Oct 16, 2017, 08:14:26 »
here is the Kawasaki.

Offline runmikeyrun

  • Posts: 390
Re: 1971 Kaw F8 Bison 250 goin' down.
« Reply #38 on: Oct 18, 2017, 21:02:17 »
here is the Kawasaki.
I purchased my Kaw for $400.  It ran, shifted, etc but had no title.  Lots of issues that took me a couple months to sort out.  I'd say yours might be worth approx half that, maybe a little more or less depending on if the lights work, it has a title, etc.  If you can button it up and get it to run then you could ask more for it.  As for the yamaha, running condition gives it more value as does the apparent cosmetic condition being good, but not as much as some people might think because...

The thing to remind buyers is that ALL of these bikes need maintenance to some degree to get them roadworthy, reliable and safe.  I put about $800-1000 into my Kaw to get it running properly, fix safety issues, and get a title, which I was able to do through Vermont.  At the least they usually need carb cleaned and adjusted, points checked/adjusted, oil and gas changed, air in the tires, chain and cables adjusted/lubed.  I also disassemble the brakes and clean, clean out gas tank, replace rotting/leaking gaskets, replace tubes/tires that are any more than a few years old, check over all the electrical, way too much to list.  If a buyer does not know how to do these things then he is going to be shit out of luck, or he's going to pay someone a lot to do it if he can find someone to work on it at all.  And he's gonna have to tinker with things along the way too.  For those that can't wrench old bikes are a pain in the ass because they "always break down" when in reality they just need tlc.

Good luck!


Here's where I list all my bikes:
'71 Kaw 250 Bison
'81 KZ750 cafe
'94 XR250L
2014 Yamaha Bolt

In progress: '68 CL350

END OF LINE.

Live to ride, Ride or die.

Past:
Rupp Minibike
Benelli Minibike
Tomos Moped (lol)
74 RD250
81 XT125
76 KH400
79 YZ250
77 RD400

Present:
14 Yamaha Bolt
81 KZ750E
94 XR250L
68 CL350 (in process)

Yeah, it's dangerous.  That's why I like it.