Author Topic: Another dragbike project. Kawasaki based wheelie bar bike  (Read 3041 times)

0 Members and 1 Guest are viewing this topic.

Offline Leino

  • Not much of an
  • Expert
  • ****
  • Posts: 1,261
  • in drag racing since 2005
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #50 on: October 31, 2023, 10:38:15 AM »
That bike looks so good! I hope the new job I'm starting tomorrow finally gives me a chance to get back in the game.

Online dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #51 on: November 01, 2023, 04:09:02 PM »
That bike looks so good! I hope the new job I'm starting tomorrow finally gives me a chance to get back in the game.

Thanks. Its just a throw together piece but it seems to be well worth my effort so far. Hopefully I can put this junkyard dog in the winners circle at some point. I haven't spent much to build it because I tried to stick with my plan of using the parts i already had in the shop. That new rear tire was my biggest single expense.  If my calculations are correct,  i built the bike for less than $1000, not factoring what i paid for the parts and pieces i hoarded over the last 25 years that got thrown into the project. . Lol.

Did you ever secure all the body work you needed for the bike??

« Last Edit: November 01, 2023, 07:27:58 PM by dragracer »

Offline Leino

  • Not much of an
  • Expert
  • ****
  • Posts: 1,261
  • in drag racing since 2005
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #52 on: November 04, 2023, 07:55:14 AM »
Unfortunately no.

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,903
  • Saver of unloved motorcycles.
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #53 on: November 04, 2023, 09:08:14 AM »
 The ET/dial in was still pretty good considering the two step issue.
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Online dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #54 on: November 05, 2023, 08:55:06 AM »
The ET/dial in was still pretty good considering the two step issue.

Its got a slider clutch. I should have brought the rpms up a bit below the point of movement as i was rolling into the staging beams. I was somewhat concerned it would pull me through the lights if i missed that perfect  stall spot..

Online dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #55 on: November 07, 2023, 08:00:02 PM »
Trouble in paradise. Well it looks like the honeymoon is over. The Ugly Duckling decided to show its rear end to me. Not certain if i neglected to tighten the sprocket nut or if it gradually back off but the end results is not good.  Its got a 3" offset sprocket with a bearing support on the end. I noticed the chain kept getting loose after each pass and needed tightening. I used a cheap, unstretched chain so i figure that was  the  culprit. Its obvious now the sprocket was moving on the end of the output shaft. I ordered a new chain and was putting it on last night when i decided to rotate the sprocket. I heard a weird noise so i took the supports plate off. The sprocket then fell off behind it-WTH?,  Oh well.  Now i have to remove the engine, split the cases and replace the output shaft. My main issue now is sourcing another 3 " offset sprocket. I've got a lot of work to do in a short while. I intended to race this bike at the Man Cup event in a week or so.
« Last Edit: November 07, 2023, 08:01:39 PM by dragracer »

Online RAFster122s

  • I feel like a really really
  • Really Old Timer ...
  • *******
  • Posts: 12,361
  • SOHC4 member # 2605
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #56 on: November 08, 2023, 01:51:27 AM »
So sorry to see this carnage... At least the failure was not something that caused an accident or bodily harm. Very disappointing but like lots of things, it can be fixed with a combination of time, parts, and some labor...
Hang in there and best of luck next time at the track!
David- back in the desert SW!

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 19,903
  • Saver of unloved motorcycles.
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #57 on: November 09, 2023, 11:13:18 AM »
 Well fudge, but I didn't say fudge.
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Online dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #58 on: November 10, 2023, 09:50:37 AM »
Pulled the engine a few nights ago with assistance from my shop helper. I split the cases last night and removed the output gear shaft cluster. I've got to dig through my stash of parts to locate a donor shaft and then transfer the gears after a clise inspection. Hope to have it back together and on the frame by Sunday afternoon.

Online dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #59 on: November 10, 2023, 09:55:04 AM »
Had to use a temporary bench set up but it works.

Online RAFster122s

  • I feel like a really really
  • Really Old Timer ...
  • *******
  • Posts: 12,361
  • SOHC4 member # 2605
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #60 on: November 10, 2023, 11:17:14 AM »
The failure kept all the metal shavings outside the case?
David- back in the desert SW!

Online dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #61 on: November 10, 2023, 03:04:57 PM »
The failure kept all the metal shavings outside the case?
[/quote
The failure kept all the metal shavings outside the case?

Yes. It only damaged the splines on the outside.  I put my hands on a good, donor transmission this afternoon.  I also received an offset sprocket in the mail this afternoon from a good friend.  I should be back in operation by tomorrow night if all goes well.

Online dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #62 on: November 12, 2023, 02:36:44 AM »
I finally got motivated enough tonight to jump back into swapping the gears from the damaged output shaft onto the replacement shaft. Shop dog was whining because we got a late start but we completed the task and buttoned the engine bsck up. Unfortunately I came to a screeching halt when i discovered the sprocket i recieved from a friend had less than pristine splines. I'm just not comfortable with the fit so I'm still on the hunt for a 3 " offset sprocket. I'll go ahead and reinstall the engine later today while i try to locate another sprocket. I have a few potential sources but have to drive at least 2 hours one way to retrieve one. Oh well,  its all a part of racing.

Online RAFster122s

  • I feel like a really really
  • Really Old Timer ...
  • *******
  • Posts: 12,361
  • SOHC4 member # 2605
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #63 on: November 12, 2023, 07:14:04 AM »
You shop dog wanted to get started earlier than you? What's in the shop , besides you, she likes so much?
David- back in the desert SW!

Offline dusterdude

  • Really Old Timer ...
  • *******
  • Posts: 8,482
Re: Another dragbike project. Kawasaki based wheelie bar bike
« Reply #64 on: November 12, 2023, 02:09:18 PM »
A 750 honda

Sent from my SM-G973U1 using Tapatalk

mark
1972 k1 750
1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3