Author Topic: Jawa Bonneville Project  (Read 18474 times)

0 Members and 1 Guest are viewing this topic.

Offline AHG

  • Full Member
  • ***
  • Posts: 243
Jawa Bonneville Project
« on: March 20, 2009, 01:08:41 PM »
Hi All, :-D
It's not much yet, but enclosed is the beginning of my project.
ENGINE-Jawa Model 870, 625cc, 1 cylinder, 4 valve OHC, 12.8:1 comp., 6 speed, counterbalanced, liquid cooled, dry sump. (currently the only one in the U.S.) Approx. 80HP

FRAME-replica British Seeley style roadrace frame ( www.framecrafters.net ), but with 38 degree steering angle, and + 4" swingarm.

FORKS-brand new take offs from 2008 Kawasaki ZZR600

WHEELS-mag wheels from Aprilia RS250

Roughly guessing, the bike should weigh in at under 300 lbs.

Will find someone lighter than a 250+lb guy in bib overalls to do the riding.
650 A-AG
650 APS

As with all things mechanical, completion date depends on $$$.
However, it should be returning home as a roller in the very near future.

See ya this fall at BUB either way.


~ I CAN COUNT MY LIFE ON ONE HAND ~
Faith, Family, Friends, & Fast Motorcycles

Offline John Noonan

  • Hero Member
  • *****
  • Posts: 3606
  • 306 200+ mph time slips. 252 mph on a dirtbike
Re: Jawa Bonneville Project
« Reply #1 on: March 20, 2009, 02:03:59 PM »
Looks good Drew.... :-D


J

Offline 55chevr

  • Hero Member
  • *****
  • Posts: 2446
Re: Jawa Bonneville Project
« Reply #2 on: March 20, 2009, 02:31:11 PM »
I like bib overalls
Joe

Offline oz

  • Sr. Member
  • ****
  • Posts: 587
  • Geordie Power.
Re: Jawa Bonneville Project
« Reply #3 on: March 20, 2009, 02:52:22 PM »
I like Pies  so maybe i may be getting towards 250 and that is a Lovely motor to be using.You Using Methanol I hope.Mate of mine runs a Jawa Sprint bike over here and gets some real good times,Anything I can do in the U.K.to help giz a mail and I will see what I can do
Oz
Newcastle born and bred a City built on Coal and Steel and a people built of stronger stuff

Offline Uncle Jimbo

  • Sr. Member
  • ****
  • Posts: 408
Re: Jawa Bonneville Project
« Reply #4 on: March 24, 2009, 02:29:48 PM »
Sounds and looking good Drew - I love the 300lbs with the power that Jawa should put out. Did I hear correct, you are making a down draft manifold for it ?  Please keep the pics coming as it progresses.

Jimbo    :-D   
From days of old, when knights were bold, and rode Iron Horses
24 Land Speed Records
M/PP 1350 AMA/BUB - M/CPG 1350 - M/CPF 1350 - LTA
M/PG 1650 - M/PF 1650 - AMA/BUB
A/PG 1650 - A/PF 1650 -  ECTA - LTA
Top speed to date 194.664

Offline Rocky R

  • Full Member
  • ***
  • Posts: 254
    • Author/Land Speed Racing Site
Re: Jawa Bonneville Project
« Reply #5 on: March 24, 2009, 10:17:51 PM »
Hey Drew, I raced a Jawa for a number of years...



This one was 500cc on methanol. I had two that were identical. Also had a couple of Weslakes. The Jawas were awesome Speedway bikes. Can't wait to see your "special built" Jawa on the salt. I hope it doesn't run total loss oiling like ours  :-D

Best of luck!

Rocky

Offline Nortonist 592

  • Hero Member
  • *****
  • Posts: 1510
    • http://www.artfv.com/design/fashion/
Re: Jawa Bonneville Project
« Reply #6 on: March 25, 2009, 01:14:38 AM »
"Dry sump"   I run an old total loss (oil that is, not the motor) Weslake.  Does that motor run plain bearings?  Good luck with the build.
Get off the stove Grandad.  You're too old to be riding the range.

Offline AHG

  • Full Member
  • ***
  • Posts: 243
Re: Jawa Bonneville Project
« Reply #7 on: March 25, 2009, 04:53:03 PM »
Hi Guys,
    Please let me answer a few questions with one note.
First, nice speedway picture Rocky. You should try a few laps on a  new laydown short stroke Jawa.
Much lighter, and you're on the pipe & sideways before you know it.
I too own 2 Weslakes, 1 Godden, 2 Jawa laydowns, and a GM laydown.

HOWEVER, the Jawa engine I'm using in the landspeed bike is NOT originally designed for speedway,
but for roadracing and sidecar motocross.

Dry sump means it has an internal oil pump and external oil tank.
Kind of like the bikes I've made my living with i.e.-Hogley-Davidstone
See the pictures in my first post and notice there are no fins.
All 500 speedway engines are air cooled, and this 625 is liquid cooled.

See Ya
~ I CAN COUNT MY LIFE ON ONE HAND ~
Faith, Family, Friends, & Fast Motorcycles

Offline AHG

  • Full Member
  • ***
  • Posts: 243
Re: Jawa Bonneville Project
« Reply #8 on: April 03, 2009, 06:19:38 PM »
Hi All,
    I received a couple new shots of my frame progress;
so I thought I'd pass them along.
All that is left for www.framecrafters.net to do is mount rear shocks,
and fabricate an aluminum fuel tank.
Then I get the roller back home to do on all remaining work.

I am very pleased with the bike so far, and suggest framecrafters to others.

See ya :-D
~ I CAN COUNT MY LIFE ON ONE HAND ~
Faith, Family, Friends, & Fast Motorcycles

Offline AHG

  • Full Member
  • ***
  • Posts: 243
Re: Jawa Bonneville Project
« Reply #9 on: April 03, 2009, 06:20:50 PM »
Another frame picture
~ I CAN COUNT MY LIFE ON ONE HAND ~
Faith, Family, Friends, & Fast Motorcycles

Offline Jonny Hotnuts

  • Hero Member
  • *****
  • Posts: 1522
Re: Jawa Bonneville Project
« Reply #10 on: April 03, 2009, 06:33:57 PM »
I really like seeing this project.

Its also good to see that you also take full advantage of having a "shop dog"

Most of the "ole timers" wont understand this but here is my version of a Jawas I knew as a kid... :-D



When I saw you were building a Jawa B-ville these are the only thing I ever knew a Jawa to be~

« Last Edit: April 03, 2009, 06:36:02 PM by Jonny Hotnuts »
jonny_hotnuts@hotmail.com

"Sometimes it is impossible to deal with her, but most of the time she is very sweet, and if you caress her properly she will sing beautifully."
*Andres Segovia
(when Im not working on the car, I am ususally playing classical guitar)

trialsguy

  • Guest
Re: Jawa Bonneville Project
« Reply #11 on: May 01, 2009, 10:18:45 AM »
Test post for troubleshooting the forum. :cheers:


« Last Edit: May 01, 2009, 10:22:32 AM by trialsguy »

Offline AHG

  • Full Member
  • ***
  • Posts: 243
Re: Jawa Bonneville Project
« Reply #12 on: May 02, 2009, 02:16:30 PM »
Hi Everyone,
    I just got back from Framecrafters www.framecrafters.net  in Illinois, and picking up my rolling chassis. They did a fine job on the whole thing. The fuel tank looks large, but volumewise does not hold as much as appears. There is a tall arched tunnel section underneath for clearance of the downdraft carb and velocity stack that will protrude into it considerably.
Now comes all the rest of the fun building. I will proceed as money allows, but at least now the bike is at home in MY shop, and I can begin machining things such as various mounting brackets and rear sets, etc.
See Ya
Drew

The picture is of the crew that built my chassis-Right to Left:
Randy Illg, Carson Illg, Jason
All great fabricators and welders.
~ I CAN COUNT MY LIFE ON ONE HAND ~
Faith, Family, Friends, & Fast Motorcycles

Offline AHG

  • Full Member
  • ***
  • Posts: 243
Re: Jawa Bonneville Project
« Reply #13 on: May 02, 2009, 02:18:34 PM »
This picture is with my teenage son for an example of size.
He is 5" 11" & 150lbs.
~ I CAN COUNT MY LIFE ON ONE HAND ~
Faith, Family, Friends, & Fast Motorcycles

Offline fredvance

  • FVANCE
  • Hero Member
  • *****
  • Posts: 2297
    • Vance and Forstall Racing
Re: Jawa Bonneville Project
« Reply #14 on: May 02, 2009, 02:48:52 PM »
Are you going to put shocks on it or run rigid?
WORLDS FASTEST PRODUCTION MOTORCYCLE 213.470
Vance&Forstall Racing
WOS 2011 235+MPH
Engine by Knecum, Tuned by Johnny Cheese.
Sponsers Catalyst Composites, Johnny Cheese Perf, Knecum Racing Engines, Murray Headers, Carpenter Racing