you do need to get out more, there's bears at the Cemetery Circuit and this fine meeting into it's fourth year back up north from memory, although you may be meaning bucket bears, they don't do that anywhere.Originally Posted by F5 Dave
Forum whore
you do need to get out more, there's bears at the Cemetery Circuit and this fine meeting into it's fourth year back up north from memory, although you may be meaning bucket bears, they don't do that anywhere.
Forum whore
sounds like the 1960's mate.....
No8 Wire Extraordinaire
Oh, so two meetings, well I was completely wrong when I said 'really'
Don't you look at my accountant.
He's the only one I've got.
Low personal B.M.E.P.
Not really. The late small truck starters are visually identical to 12V car versions. This one I know was bought off trademe with very little info. A set of numbers stamped onto the motor body with no makers mark isn't much to go on...
Ross did actually do 24V versions to order. HD's and big twins on alky liked them.
To be fair to Dave, he's right in that the whole BEARS scene is a lifestyle choice down here. But that Rotax left ChCh because they also don't like 2 strokes...
From memory it was reclassified as F1.
Forum whore
settle down, saw it as an opportunity to advertise the meeting, there's classes at other meetings to petal.Oh, so two meetings, well I was completely wrong when I said 'really'
Anorak
Remember the hate that used to get poured on the chock chasers esp the two strokes.
But bugger Bears i think what NZ needs is a Single cylinder class just one rule it has to be single cylinder.
Split it in two classes 0-250 and open
Kinky is using a feather. Perverted is using the whole chicken
No8 Wire Extraordinaire
The owner told me erm. . Was it Dave Hicks, or another Dave who had it used to sandbag in 2nd place then fight for the lead at last lap. But if he made a mistake he catch it all up in a few corners. It got reclassified then I was told.
Heck I dunno Bears seems to be a bit redundant with S1000RRs and the like, but how could they stay in a time warp without being post classics?
I was interested as a pre82, for which the engine was 1980/81, but the chassis I found was 84 and they made first TZ ones 83. Shame.
With small cct mikunis I dynod it at 60hp with a sweet fat curve at very pedestrian revs. The rods were the weakness but bigger pin modifications could dramatically alter what safe revs could be achieved. Those barrels were super advanced for the time.
Anyhow, enough derailing if the thread with talk of the insensible twin. Still resides in a mate's spare room but my life took another path.
Don't you look at my accountant.
He's the only one I've got.
Anorak
There is a guy who can make Old style looking cylinders with RSW porting.
He offered to build some for Lozza on pitlane pretty cheap too. that 60 would be closer to 100HP
Kinky is using a feather. Perverted is using the whole chicken
No8 Wire Extraordinaire
Just safely raising the revs would take 60 to 70 all day long. Spigot mods and larger carbs, lose the Motosplat ignition- another jump.
Don't you look at my accountant.
He's the only one I've got.
Hardcore Biker
Greg, here's somethings from my files for the one-way clutch for a drill-powered starter attachment for 125/250 2T
"They were just a socket with the square end bored out and a mcmaster 2489K6 pressed in with a stepped shaft and a couple of snap rings to keep it all together."
https://www.mcmaster.com/2489k6
cheers,
Michael
Low personal B.M.E.P.
thanks Michael. I can't open that - my internet as usual - but it might help someone.
IMO, off the shelf locally trumps a potentially neater but harder to source solution....
Hardcore Biker
From the link, it appears to be a standard industrial part that your local bearing house can probably provide (or at least something similar to it):
One-Way Locking Needle-Roller Bearing Clutch
Single Row, Acetal Plastic Spring, for 3/4" Shaft Diameter
System of Measurement Inch
Bearing Type Roller
Roller Bearing Type Needle
Construction Single Row
Seal Type Open
For Shaft Type Round
For Shaft Diameter 3/4"
ID 0.75"
ID Tolerance -0.0005" to 0"
For Housing ID 1"
OD 1"
Min. OD Tolerance -0.001"
Maximum OD Tolerance 0"
Width 5/8"
Width Tolerance -0.01" to 0"
Ring Material Steel
Roller Material Steel
Cage Material Acetal Plastic
Spring Material Acetal Plastic
Maximum Speed 12,000 rpm
Maximum Torque 17 ft.-lbs.
Lubrication Required
For Shaft Surface Smoothness (Ra) 16 microinch
Shaft Mount Type Press Fit
Temperature Range -20° to 200° F
RoHS Compliant
The needles in these bearings roll freely in one direction, but lock to transmit torque when the rotation of the shaft is reversed. Also known as drawn-cup roller clutches. An arrow on the lip indicates the rotational direction that locks the bearings.
Single-row bearings do not support loads from any direction. To support radial loads, use with our Needle-Roller Bearings.
In the riders seat
Darryl, he's a coachbuilder, anything he builds is immaculate
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
i'm a wanker
is the The Sensible Twin finshed ?
i'm over buckets
Low personal B.M.E.P.
Believe me, I'm going like fuck on it Scott. Working at getting the roller finished before the ignition arrives.
Currently mounting a half fairing and the instruments. Tank is away being TIG'd - unlike you, I don't have TIG.
It's the little bits that hold you up. Into town today for more tubing, fasteners and vinyl for the number boards...
If the engine doesn't work out, at least I'll have a tidy roller which can take wider rims - and probably up to 100HP....
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