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Author Topic: my first project, 1978 kz 400 (now with 440 bits)  (Read 14009 times)

Offline Shermanator86

  • Posts: 295
  • Big guy on a little bike
my first project, 1978 kz 400 (now with 440 bits)
« on: Aug 19, 2011, 15:58:15 »
Got my first bike in may, between finishing school, moving, and starting a new job I didn't get to working on it til late June but here is what has been done so far


pretty much how it was when i picked it up except the exhaust

after about two hours of the first day of work

quick rattle can job to see how white looks

didn't really care for the solid red stripe so went for a little more subtle one

how she left my buddies house after keeping it there for a month with his '76 survivor he pulled out of his grampa's basement  and it had been through a house fire


« Last Edit: Nov 02, 2011, 10:54:12 by Shermanator86 »
1978 kz 400 single carb, now 440 top end hybrid
http://www.dotheton.com/forum/index.php?topic=28708.0

2008 Suzuki SV650

Offline Shermanator86

  • Posts: 295
  • Big guy on a little bike
Re: my first project, 1978 kz 400
« Reply #1 on: Aug 19, 2011, 16:17:48 »
first try at a single carb set up useing a keihin PJ




wasn't done very well do to my limited tools so i sucked it up and took it to a guy with a fab shop, pretty happy with the result




Changed the fork seals got new bars and grips along with new headlight, signals, and led tail from dime city


new bars

New headlight and front signals



old brake light and signals

new rear signals, tail light and license plate/ signal bracket I made out of some scrap we had laying around the farm shop



scrap born license plate holder/turn signal bracket



And here is how she sits as of now, i have a clutch push rod oil seal on the way that i hope to get in before I try to make the 150 mile trip to Indianapolis for the moto gp race at the end of the month
1978 kz 400 single carb, now 440 top end hybrid
http://www.dotheton.com/forum/index.php?topic=28708.0

2008 Suzuki SV650

Offline MNBikerPup

  • Posts: 418
  • Newbie Rider into all motorcycles.
Re: my first project, 1978 kz 400
« Reply #2 on: Aug 19, 2011, 17:50:58 »
How does it perform with the single carb vs. duel carb setup? Do you notice a difference at all? I have a quad carb setup on my kz650, which also means more expensive repair/tune bills.

Offline dustywang

  • Posts: 90
Re: my first project, 1978 kz 400
« Reply #3 on: Aug 19, 2011, 18:00:54 »
Looks great. i love my single carb setup on my 76 kz400. Sooooo much more top end power. What size carb are you running?

Offline MNBikerPup

  • Posts: 418
  • Newbie Rider into all motorcycles.
Re: my first project, 1978 kz 400
« Reply #4 on: Aug 19, 2011, 18:13:09 »
I have the mikuni VM22/210 x4 carb set up. (which I think was the stock carb) I had thought about making it a duel carb setup where the carb makes a 90 degree outward turn and mount the filters on the sides. Kinda like the harley side filter setup, but for both sides. Or even run the carb setup under the seat to fill and clean up that area that is usually covered by side covers.

Offline dustywang

  • Posts: 90
Re: my first project, 1978 kz 400
« Reply #5 on: Aug 19, 2011, 18:34:32 »
Heres how mine looks


I guess you could something similar like two that are mirrored but im not sure how the throttle cable would work? You would need a cable that splits to open both carbs.Like this http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-carburetor-parts-universal-2into1-mikuni-throttle-cable-assembly-002-225.html

Offline MNBikerPup

  • Posts: 418
  • Newbie Rider into all motorcycles.
Re: my first project, 1978 kz 400
« Reply #6 on: Aug 19, 2011, 18:49:12 »
That sounds like it would work perfect.

Offline MNBikerPup

  • Posts: 418
  • Newbie Rider into all motorcycles.
Re: my first project, 1978 kz 400
« Reply #7 on: Aug 19, 2011, 18:50:37 »
What did the shop charge you for this setup? (Just to get a ball park figure)

Offline Shermanator86

  • Posts: 295
  • Big guy on a little bike
Re: my first project, 1978 kz 400
« Reply #8 on: Aug 20, 2011, 14:56:25 »
thanks guys, I don't really have anything to compare the single carb to as the stockers were junk so the bike didn't run with them and the single isn't jetted right yet so its running rich. and the  carb is a keihin pj34 
« Last Edit: Sep 20, 2011, 09:23:32 by Shermanator86 »
1978 kz 400 single carb, now 440 top end hybrid
http://www.dotheton.com/forum/index.php?topic=28708.0

2008 Suzuki SV650

Offline Shermanator86

  • Posts: 295
  • Big guy on a little bike
Re: my first project, 1978 kz 400
« Reply #9 on: Aug 25, 2011, 00:47:54 »
Ok so Planning on riding 3 hours to the Indy motoGP race and this is how my bike looks haha
 :?

all because of one little seal

case split to replace seal



on a positive note, the seal is in, case is back together and should be finished up just in time to get my new jets in tomorrow and do some test riding friday hopefully
threw a little engine enamel on the intake to keep the rust off, turned out better than i expected
1978 kz 400 single carb, now 440 top end hybrid
http://www.dotheton.com/forum/index.php?topic=28708.0

2008 Suzuki SV650