Pic of my DT1

[firko]

I was fiddling with the camera in the shed and took some comparo shots of the stock DT1, GYT and my Warren Willing barrel. Here's the transfer ports..............
Stock piston port

GYT piston port

Willing ported piston port

[vmx42]

Are the cobwebs a core part of Warrens go fast philosophy? 

Loving this wander through DT1 land... could be addictive.

[crankpin]

Me too.

Beats reading about the nudity debacle and other non MX related crap.

I'm quite tempted by an early Yamaha now.

[vmx42]

Me too.

Beats reading about the nudity debacle and other non MX related crap.

I'm quite tempted by an early Yamaha now.

I agree Cranky, but I also reckon it could be part of "a cunning plan" by Firko and his crew to drive up the prices of these utilitarian workhorses... 

[firko]

Yeah, I'm glad the nudity debate has been shuffled off to Buffalo and we can get back to old bikes, it looks as if Walt's flushed it down the toilet anyway.

I was intending to post some other shots of DT1 inlet, exhaust and boost port comparisons but figured the interest-bandwidth use ratio was a tad out of whack. Even though I'd know what's what up on the screen, to most it looks like a binch of holes no different to each other, in the end more than a bit boring for even the most anal of porting junkies. Instead, here's a shot of the freshly rebuilt RT1 engine destined to be refitted to the Cheney any day now. Frank Stanborough has balanced the crank/rod/piston, the twin ring original piston's been replaced by a single ring RT1MX item, Lozza's done some porting, there's a new 36mm Mikuni replacing the old flange mount 34 and the DT400 CDI has been replaced by one of Lozza's custom programmable ignitions. When combined with the modefied Pro-form YZ360A pipe we're expecting some serious performance from this puppy. With a bit of luck and some of the usual good riding by my 'sponsored' rider Clarkey, the old Cheney might just be competitive in pre 70 at the Queensland Nats later this year.
btw, the scratched up outer cases are off at the powder coaters right now

[crankpin]

btw, the scratched up outer cases are off at the powder coaters right now

I was hoping.

[nifty]

Firko, is that one of them fancy oil coolers i can see poking out of the side case, do they work?

[Iain Cameron]

Firko does lozza sell his ignitions? Is he a member of ozvmx ?
Iain

[Lozza]

Firko does lozza sell his ignitions? Is he a member of ozvmx ?
Iain

Yes and Yes.
Needs 3 bolts in the stator to backing plate though firko. Looking forward to tuning the nuts of off it.

[firko]

Firko, is that one of them fancy oil coolers i can see poking out of the side case, do they work

Yeah it is Nifty....somehow I doubt it'd make much difference but it's one of those period gizmo's I find hard to resist.

Needs 3 bolts in the stator to backing plate though firko

Yeah I know that Lozza....I need another wiring diagram too. I can't find mine. I'm going at it slowly, I may get it running with my PVL and then move over to the Lozza setup. I've got other stuff on my mind before I have to bother with that.

[firko]

It was a proud day at Casa del Firko when the my DT1 made the cover of OBA last year
                     

[firko]

Now that I've got a spare engine I'm reassembling my darling old DT1 from Hell for CD9. I was chatting with a good 'ol boy chum this morning and we've decided to have a DT1/RT1 theme for the Kevlar Kompound at CD9.
Nathans trusty old racer will possibly be revamped into a period style desert bike and used as this years Kevlar Kourtesy Bike before embarking on a new career as an RT1.
         

[shortshifter]

Like the others I'm enjoying this thread and looking at old Yammies in a different light.

[Iain Cameron]

Firko . Im going to try to get to CD9 , would you have room for a couple more dt/rt s at your stand .
 Iain

[firko]

Firko . Im going to try to get to CD9 , would you have room for a couple more dt/rt s at your stand

Nothing's been set in stone yet Iain but of course you can park the bikes with ours.