[Bruce CurtisMember]

Hey Whanny, you can run a heat gun over the plastics and it will soften the scratches and bring colour to the white crease marks, Ollie is right about the linkages they are abit of an archilles heel in the Yamahas.

Fester was the Vortex x10 worth the money? I have been thinking about them lately but at $400 (give or take) it’d wanna make a big difference between maps.

Bruce

[Bruce CurtisMember]

It is going out tomorrow for a few hillclimbs with the Young bloke, it’s very crisp again and running like a sewing machine, still waiting for somwe of my protective bits to turn up from the UK, so I’m not venturing back in the ranges S/T before i have them fitted….. friggin Royal mail so slow must have be approved individually by HRH first, have ta take that up with our resident Pom methinks..
anyway rocket it ain’t the bike that kicks butt, but it does help, can’t tell you how many 4T riders have got off mine after 10 minutes riding shaking their heads telling me its got insane snap, and no wonder it beats me up but I do love it so that way.

BC- the maschochist

[Bruce CurtisMember]

I used to use additives in my performance cars gearboxes it seemed to help with shifting and bearing life.

wouldn’t use any where a wet clutch was involved tho’

BC

[Bruce CurtisMember]

Good one Mr TB, now I really really wish I could go, that is unbelieveable.

I want to hear some feedback on the Hussy 390 in particular, if a 4T ever was on my horizon it would the first i tried to get a test ride on.
You blokes and Blokettes are going to have agreat time……..

BC

[Bruce CurtisMember]

Ok they’re going overseas with this lot, northcoast KTM had 4 new bikes fraudulently taken 2 years ago by two con-artists, it cost my mate Big Ronnie his half of the business…friggin scumbags, mutherferkers, Amalignnant tumours on aCamels A$$ and that was about a week after both the nephews and a heap of others had late model KTMs all stolen from various homes and sheds around SE Qld, cops reckon it was shipment going out, and they knew where each bike was and hit close to shipping date.

I hate bike thieves and car thieves and thieves in general, need to be reckoned with, but on this scale generally they are hard bustards who do this for a living amongst other things.

BC

[Bruce CurtisMember]

And i used to ride orange, and still have the scars to prove it…. :S

now lets talk up combustion chamber efficencies, got any ideas you two “snake oil” merchants??

Bruce Cee (said very very much tongue in cheek)

by the way PDS will never work well, just call it “Claytons suspension” you know almost as good but doesn’t quite hit the spot

[Bruce CurtisMember]

Ok in Daves defence, he and I spoke about it after a week or so of this rubbish, I kept my word on silence and will continue to do so as it is him and Mr Bulls’ intellectual property to a certain degree. I caught on very early as to what they were up to, but only I think because I have had alot to do with “bush mechanics” and veteran engines in my youth. As I keep stating everything old is new again, as for the to and fro’ing a fair bit of pride got mixed up with logic in this arena.
Also remember as with all data, computer analysis is only as good as the program behind it and the data inputed. Also remember a minerals based computer has not been invented that can take the leaps of intuition and logic that the organic computer can.

sometimes the bleedin’ obvious is just that.
and PDS doesn’t work very well either…

Bruce Cee

[Bruce CurtisMember]

Boony like it was siad earlier if for charity I’d say fair enough, but privately run, we have them in our neck of the woods, ask Robo67 what he thinks of the organiser, or the local shopkeepers now. First year he got them all on side, 800 riders all got food etc locally, 2nd year and hendceforth he brings all the supplies keeps all the profit inhouse, pays the local yokels a meagre’ fee to use the land, runs paddock rides mostly with a little firetrail and Dual line for the “experienced”. last time I heard he got 1000 riders @ $150 perhead just for the riding. Now recently having organised an unrelated charity event for 1500 participants I can tell he’s is doing pretty damn well out of it, and he runs about 1/2 a dozen a year in the 300 klm radius.

Not that I’m an organised large ride sorta bloke meself, hate them idiots to right, clowns to the left and that’s just my mates…

BC

[Bruce CurtisMember]

Now you’ve confused me Moto (easy to do, it’s the Scots in me) you want your dearest and most cherished significant other to learn on a bike that has “instant” throttle response that becomes a nightmare in S/t for the novice… or am I getting it wrong and it is YOU that wants it to be snappy and crisp, or the smileys are going over my bald dome and it’s all tobgue in cheek?

Look at the pipe design on an enduro 2t versus MX 2T, especially the Gas gas versus say a SX250.

BTW how did a thread on a most innovative 4T become a discussion on anything but?

[Bruce CurtisMember]

Champo has fairly well hit the nail on the head with 2T pipe design, a 2T without a tuned for purpose pipe is a whipper snipper, even racing chainsaws get tuned pipes, all old hat now, champo match the longer stinger with a shorter silencer and your power will come on sooner and with a better torque taper/curve.

4T pipe design is childs play in comparison, think to a chev small block, the most coomon 4T performance enhanced engine in the world, short primary tubes with a larger I/D give more help to the upper rev range but at the expense of throttle response in the lower portions, we used to call these “extractors”
Longer primary tubes with a smaller I/D meeting into a collector (powerbomb is just this) then into tuned length pipes give better throttle response through most of the rev range increase torque in the lower 3/4 of the rev range and are more expensive, we called them “headers”, the only time this really becomes moot on a non 2T is on Rotaries, where the engine is really a 4t, but reacts to exhaust pulses like a 2T as it has ports and no poppet valves. I would be interested to see Mr TB sir if the old 2T GM engines and double knocker commer motors would have responded to a tuned exhaust.

What yamaha has done here is not new technology at the basic design, they and others have done this before on race and road bikes, but it never filtered to dirtbikes as a buying public we don’t accept change as well as the other discliplines do. the shock maybe prone to over heating issues with the exhaust but like the old RZ500s of the 80’s (yes I owned a few, whaddya reckon I’m a 2 Stroke bloke just recently!!) heatproof wrap keeps it under control.

I believe yamaha has gone back to 4 valves may be a backwards move in overall performance potential as the 5 valve heads tend to help with the “electric motor” power delivery most is their 4T signature style, but maybe there were gains enough in other areas that suited the 4 valve layout, maintenance wasn’t much of an issue as the 5 valve layout came out in the late eighties on the streetbikes and they last longer than the honda Hi-Po 4 valvers.

I will be trying to get a test ride on one as soon as I can sweet talk the local (moneyprinter) dealer into it when they come in, as I am actually quite excited about this and the Hussy layouts.

BC

[Bruce CurtisMember]

Welcome back Mr Bull, thanks for the reply and ideas have you by chance found a decent coolant that isn’t as prone to foaming?

Model T & “F” head ford V stuff eh? sometimes everything old is new again but the cooling systems look so so clean these days surely they wouldn’t cut corners to keep manufacturing prices down and engine “image”.

I’ll be buying some heat tags methinks and definitely new coolant to begin with

BC

[Bruce CurtisMember]

The Yz has an Execute cover that cost me US$15 + postage ($100+ here), was worried I couldn’t fit it, so off to an unfamilar upholsterer with mine and young fellas new fatcory effex one…$80 later WTF just to fit them. So when the young fella changed bikes and wanted anew seat cover that wasn’t purple two of my riding mates told me what to do with the gripper material, even gave me some they had leftover from their bikes, a decent pneumatic stapler and a heat gun, 1/2 an hour and it looks better than mine cause the material is straight.

Just like when the boys here told me how to apply a sticker kit, working with the right advice is gold. :huh:

BC

[Bruce CurtisMember]

Ole mate Mark from Bullpitt tells me about a week until new stocks of pants in and some new colours for all our fashionable pwetty old bulls out there, like ???? well I don’t like to point fingers, but if the pants fit .

BC

[Bruce CurtisMember]

Robo I tells ya Bud when you muff it you don’t go by halves do ya, whose husky? your old one by any chance?

first bloke looks like he has the classic “intimidated by the pack” moment and panics pulls the front on too hard and imitates a goat and eats some grass.

BC

[Bruce CurtisMember]

too late Moto, driven one before I was 21 and my oldest mate owned an RPO83, that I used to borrow, also owned an E38, and the old man had a DJS XE, Mum had an E type and a MKII, I am not a complete phillistine, cause i born and bred from a long line of petrolheads.

Now a classic ford GT40 or genuine cobra (yes i know based on a Pommy mobile or if we’re talking street vehicles a ZX14 would be fun for a day

[Author]

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