CBX Racing

CBXs, new bikes, old bikes, cars, trucks, general chat, off topic, this is the place to post it.
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Warwick Biggs
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Re: CBX Racing

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Happy News! The lump is back up and running. Sad news. I've had to jump thru' a small elective surgery window and as a consequence my left hand has been immobilised and I cannot hold a sensible conversation, much less a clip on handlebar. The conversation I would like to have will only get me into trouble in today's crazy world so it won't happen but my physical impairment may prevent me entering the CBX in the Seniors race at the end of August.

Currently I can't make a fist but that might improve once the sutures are removed and with a bit of physio. Gee, now I might find out how these MotoGP riders feel when they fall off, break a leg and 3 weeks later they are dicing for the podium. My injury is age related rather than the consequence of youthful exuberance - rectifying a Dupuytrens contracture for those of you old enuf' to be interested n old fella stuff.

I discovered that I could locally source O ring gaskets for the extended sump in lieu of TIMS or Silver. At greatly reduced expense too. 190 mm x 3 mm is the correct size and they work. Secondly, Phil you may be interested to know that the polyolefin heat shrink tubing (don't you love that word - 'polyolefin', sounds like music) seems to have worked in sealing the split carb rubbers - time will tell.

Now I just need to work on the rider to get back to fitness. I still have my eye on the National Championship in November but I will need to get the lump back on the track for a shakedown well b4 then. Covid related border closures that I suspect are unconstitutional (part of the conversation I alluded to earlier) could frustrate my ambitions however. Its a long time since I appeared in the Oz High Court and I have no desire to revisit my own vomit but I may have to dust off the old wig and gown in order to get the lump back on the grid, the way things are going here.

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Syscrush
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Re: CBX Racing

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Good luck to you with your continued recovery.
Warwick Biggs wrote:
Tue Jul 14, 2020 8:20 pm
Secondly, Phil you may be interested to know that the polyolefin heat shrink tubing (don't you love that word - 'polyolefin', sounds like music) seems to have worked in sealing the split carb rubbers - time will tell.
That's good to hear. It almost seems too good to be true, I really hope it works out for you! In the video I shared, I even thought that the pieces looked a bit better after the treatment. Were you happy with how they turned out?
Phil in Toronto
A cool guy deserves a cool bike, a dork needs a cool bike...
Pics of Perry, my '79.

Warwick Biggs
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Re: CBX Racing

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They look schmick. I'll post a pic. Better still, I'll make a film and see if I can post that because it needs to be heard as well as seen.

My hand is thankfully out of plaster and it looks horrible. It was opened up like butterfly wings, I think they call it a fasciectomy. Luckily it was the left and I'm the other way round so that is good. It also hurts a lot but now I can make half a fist by squeezing it with my other hand. Maybe once the knitting is removed it will work a bit better.

They say you need to be totally relaxed and light on the bars. Hold on with your knees. Steer with your hips, your feet and your head but hold the bars like a baby. That is what they say altho' its not how I do it. If I could it would be easier on my hand because I'm a heavy counter steerer. Maybe I can change my style but at 68 its asking a lot. Necessity is as they also say, the mother of invention, so I guess its possible.

Anyhow, I have a film to make.

Warwick Biggs
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Re: CBX Racing

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Before I do that, here is a pic of how the lump was with the Pipemasters fitted. I swapped these with Roly for an Ignitech digital ignition. Just te recap a few tech details - Ported and polished head with 2 mm o/size valves, stock pistons crank, rods, bucket setup, clutch, etc. Electrics stripped out and running total loss off twin 20 cell Antigravity Lithium Phosphate batteries, Ignitech digital ignition off stock 2.4 amp Honda coils and custom 5 wire loom. Front end steering head angle (rake) modified to 24 degrees, Front forks re-valved and heavier springs fitted, VTR front wheel and modified rotors, stock 4 piston CBX calipers fitted with spacers and HH sintered race pads, Bridgestone Battleaxe slick, rear fully adjustable Wilbers racing shock with variety of custom length dogbones, Prolink swingarm linkage ground back to accommodate 160 Battlaxe slick, on modified Kawasaki ZZR rear rim and caliper, stock axles, modified 31 mm CR Special carbs #118 jets and manifold, extended sump and CB1100F oil cooler, stock oil pump & pickup.~ 110rwhp, weight 213kg half wet (110front/103 rear). Since then I have fitted a lighter 6 into 1 Delkevic exhaust.
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Warwick Biggs
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Re: CBX Racing

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Lots of other minor but important mods such as the CSMoto engine sliders (a great mod for all CBX's to protect those wide cams in a fall), custom Colin Marley billet crank end caps, 520 chain conversion, 20 tooth engine sprocket and wide variety of rear sprocket sizes, period correct Raasq rear sets, reversed SL gearshift and Rickmans ducktail, chopped stock frame and it still has made in Japan matching engine and frame numbers, etc. etc. A genuine, largely original 1982 CBX race bike that can still boogey with the best replicas.

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Syscrush
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Re: CBX Racing

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Warwick Biggs wrote:
Sat Jul 18, 2020 8:26 am
They say you need to be totally relaxed and light on the bars. Hold on with your knees. Steer with your hips, your feet and your head but hold the bars like a baby. That is what they say altho' its not how I do it. If I could it would be easier on my hand because I'm a heavy counter steerer. Maybe I can change my style but at 68 its asking a lot. Necessity is as they also say, the mother of invention, so I guess its possible.
"How do you hold on to the bike?"
"I don't hold on."

Phil in Toronto
A cool guy deserves a cool bike, a dork needs a cool bike...
Pics of Perry, my '79.

Warwick Biggs
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Re: CBX Racing

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Yes, and the last thing you want coming out of a bend on the edge of traction is a motor on 4 or 5 cylinders suddenly chiming in on 6. This is the problem I've been struggling with for the past couple of years. It doesn't matter how smooth you are on the throttle, you still need to be ready to gently correct that sudden oversteer from the rear breaking away b4 it flicks you off in a high side.

As for the baby hands theory. Mick Doohan, the maestro of those violent 500 2 strokes has observed that the safest place to be is on the edge of traction because you can see and feel the edge of the cliff and are less likely to fall over. It is probably the Mark Marqez school of thought too (did anybody see his amazing recovery after throwing it away over the w/e at Jerez?). There is an element of truth to this but conversely if you spend a lot of time balancing on the edge of a cliff, your chances of falling off increase with time because none of us are perfect all of the time.

Irrespective of riding style, the CBX does require an aggressive approach with lots of body English, because of the problems associated with reducing it's ground clearance by 2" in the move to 17's and slick tyres. Even with the suspension jacked up to the max it is necessary to hang off a lot and stand the bike up to achieve good corner speed to keep the cases off the deck. In this regard it is no different to the CB1100R's and Katanas. It is one of the reasons these old air cooled superbikes are so much fun to ride and so popular to watch. But it is very physically taxing, especially for geriatric's.

I need to move some bikes around today so it will be the first test for my torn up hand.

Warwick Biggs
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Re: CBX Racing

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https://www.youtube.com/watch?v=jxy-nbFulSE

Marquez has set a new standard in road racing. Riders must now be able to push their machines well beyond 2 wheel slides to the absolute limit of crashing and then recover - routinely. That is both wheels off the deck and the bike sliding along on it's side with the rider then able to push it back up using his elbow and knee.

How this is possible without having the arm and leg snapped off in the process is part of the skill set required. Marquez was doing over 90 mph when he hit the deck and how he pushed himself back up at that speed without losing limbs would take considerable analysis. You might say it was a fluke except he does it regularly and none of his rivals can comprehend it either.

I well recall seeing Graeme Crosby for the first time sliding the front and thinking, 'how can he do that?'. Now we have a new standard - shall we call it 'the crash test dummy' technique? Except Marquez is no dummy. Just a totally focused, supremely superior motorcycle racer. Then he crashes again after going from stone cold last to challenging for the lead and this time shatters his humerus but after operations and physio is back on the bike 4 days later lapping at record pace. How demoralising for his competitors. It is beyond comprehension.

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