JANUARY 2013 DO THE TON BIKE OF THE MONTH - VOTING

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  • Total voters
    198
  • Poll closed .
Sorry for the confusion. The Kawi HII, Mach IVs were known as Widowmakers back in the day for their proclivity to wobble out of control at speed due to the bamboo frame technology and surprise wheelies at the slightest blip of the wrist. Also the Team Green color of my font should have made my vote obvious. Drewski gets my vote. The video at Barber probably is the thing that clinched it for me. All three are works of art and deserving.

Ahhh yep gotcha! Love the phrase "bamboo frame technology" LOL Kind of sums up the seventies for the Japanese! All horsepower and no handling. Kind of the opposite for the Europeans back then which tended to be all long wheel base, "slow" handling and no power!

Now that I've got a reliable internet connection for the next few days I'll post a little more information on the CB for those who have not yet cast their vote. I can't improve on HD's photos from my build blog so I'll just briefly summarise the story.

This bike was parked under a tree at my parent's neighbour's farm and had been out in the weather for 10 years. It was given to my brother for nothing and he passed it on to me. My 13 year old son and I have spent the last year pulling it part and putting it back together again and aside from anything else, that in itself has been a highlight of the whole process i.e. spending time in the shed together with my son!

So we pulled it all apart and cleaned it up. Soda blasted the motor cases, head, barrels and covers, sprayed them with heat proof rattle can and put it all back together with new pistons, rings and a rebore. Cam chain and tensioner were also new. Head received a head job and it was all bolted back together with a new carb kit in the CV Keihins. The frame was blasted and painted grey 2 pack with a metal flake after the usual trimming of unwanted bits and pieces.

The hard part was fitting the ridiculously OTT front end. I had an entire 848 front end (forks, triple clamps, discs, callipers and master cylinder) sitting in the garage after upgrading my race bike. It needed a custom spacer to get the CB steering stem to press into the 848 lower triple, a custom spacer and nut to get the 848 upper triple to fit the CB stem, a custom axle and 3 spacers to get the Harley hub to fit the 848 forks, 2 custom spacers and 10 holes drilled and threads tapped to get the 848 discs to fit the Harley hub and a custom speedo cable to get the Harley speedo drive to drive the CB speedo! Aside from that it was all straight forward!! I have no machining experience and had to rely on the generosity of my daughter's friend's father to get the parts made. He was very generous with his time and expertise and I am very grateful to him for his efforts. Thanks Sigi! Rear shocks are the stock items with extension brackets to raise the rear by about an inch. Some decent rear shocks are on the "to do" list as the stock items are not rebuildable and have zero damping!

Rims are custom aluminium F 2.15x18, R 3.0x18 with new spokes and tyres to match. Body work is Benjies Cafe Racer "El Poquito" with home made rear hugger and front guard. Paint was out sourced to my design. Electronics are all new with Dynatech coils, Rick's regulator/rectifier, electronic ignition is from BoreTech and it's all connected with a home made wiring harness. Stock (but new) sprockets front and rear. Rear set brackets are from an old 748 race bike I had years ago and the foot pegs and levers are from Loaded Gun.

Not sure what else to list here because as with all builds, it's the little details that take the longest time. It's been a hell of a lot of fun putting it all together but I'm glad it's done now because I'm champing at the bit to get on with the next one!

So thanks for taking the time to read all about it and thanks again for the BOTM nomination!!
 
quote
The Kawi HII, Mach IVs were known as Widowmakers back in the day for their proclivity to wobble out of control at speed due to the bamboo frame technology and surprise

were do these myths start :-\ back in the day there was nothing faster then an h2 in 1/4 mile or the road course yes in a road course faster than a ducati 8)

Here are some quote's from test rides of the day

If you’ve poured over the charts and graphs you know by now that the Kawasaki 750 delivered the test’s low ET, second-highest quarter-mile speed, the fastest lap time, the strongest braking force, the highest torque and horsepower readings on the dynamometer, the highest power-to-weight ratio. Based on performance alone, it is without a question of doubt the King of the Superbikes.

The Mack IV is difficult to deal with in a maximum acceleration situation. It attacks the quarter angrily and traverses it in a series of quick, furious, hopping convulsions.


The Mach IV Kawasaki engine rockets to 7500 rpm at the touch of the throttle; nick it and it comes at your throat with a cacophony of ringing fins and slapping pistons and horsepower unrestrained.

The Mach IV a wild and skittish bucking bronco with all the talent in the entire world ;
http://www.youtube.com/watch?v=fFeQHtb41r4
 
The legend of the "Widowmaker"... it has grown with time... ;D

I had a h2b back "in the day" and it was plenty scary in the corners and had a pretty good "hit" when it reached the power band. 8)

No doubt, the Kawasaki engineers had a challenging time trying to get the big Triples and the Z1 to handle the power that they were able to coax out of the engines. A lot has been made of the spindly frames being the cause. From what I've learned in recent years, I don't believe the frames are the major culprit.

First off, I have to say that there are others "out there" with far more experience in these areas than I. "Jamoo" on our board for example has raced his "much modified" h1 with great success over the years. I don't wanna put words in his mouth, but my understanding is, he believes it's all about suspension geometry, steering head bearings and a proper swing arm pivot bushings/bearings. Frame bracing ISN'T the most significant modification to giving you proper handling.

I can tell you from my OWN experience, that my h2 handles quite well with the modifications to the suspension. There have NOT been any frame mods done to this point.

So there ya go. 8)

Don't believe ALL the horror stories from the past, or the present! ;) :D
 
KaaoSkitzofreniK said:
honda 350!!!! handsss down!

Holy shit, that's a margin! Well done, very much deserved, see what you get for your hard work and vision?
 
All great bikes of their own realms, but I can see why the honda won. Such nice lines on that thing.
 
Hey wow! I won :D :D :D

Thanks to everyone who voted and special thanks to those who have offered lots of support and comments along the way. My only wish now is that it was something with a bit more power that I had found under the tree 2 years ago!!! ;D ;D ;D ;D
 
Congrats Ducatiboy! That's the biggest margin I remember seeing for a win on here in my short time too... but that doesn't take anything away from the other contendors either... all quality as per usual here on DTT :D
 
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