Picked up the leaf spring from the suspension shop.
Friday, July 29, 2011
Wednesday 27th July - Shed night
Picked up the leaf spring from the suspension shop.
Wednesday, July 20, 2011
Incoming packages
Monday, July 4, 2011
sanding sanding sanding
Saturday, July 2, 2011
Pistons
Sport Scout bores
Bore size
2.875 = 73.025 mm
But we need 2.875” +.05 = 2.925” = 74.295 mm
The boys in Melb used Honda XR250 pistons but I don't think they come in 50 over part 13102-Kti-315
Jurgen built his "102" with Yamaha golf cart pistons
Welded up a little mountain in the head – to displace & improve air flow
Part j38-11635-01
Then I wrote to the virtual indian list & got the following comments
Think I'll run with option 1 for $260
Any thoughts wise masters ?
1]
Charlie,
I have NOS Rocky Cycle pistons from the Hap Jones dealership that are used for stroker scouts, they are in +.050 size, if interested contact me off list at rocky@iron wigwam
Stroker pistons to make your scout have 57 ci using chief flywheels. Brand new old stock. avaibable in +.030, +.040, +.050, +.060, +.075 over size. You get a pair of pistons, domed for use with Bonneville heads or stock heads, ewp ins, 4 clips and two complete sets of rings. This special set of pistons allows the rider to increase his engine size without adding stroker plates under the cylinders, which is a sure give way that the engine has beem leaned on or the use of intake port extensions which create intake leaks which are no fun. So with these pistons a builder can keep the stock look on the outside with a stroker on the inside.
2]
Hello Charlie
Go a little further and use One of Rockys Crank pins to suit HD Sportster Rods
and bearings and use Iron Sporster rods. The SS rods are not all that strong . I
am also in the process of building a similar Standard scout motor to you and
fitting to a 101 frame.
There are a few problems to over come.Crankcase clearance for the rods needs
adjustment, I would also fit a top head steady bracket to the frame.
Regards Phil
3]
Our Late Great Guru "Cliff" made up a top motor bracket that attached the rear of the rear head to the s/c loop under the frame. He then joined the 2 cyls with a strap from the forward of the rear head, to the rear of the front head, much like a conventional upper mount goes. But this one was anchored to the 101 frame from the top s/c mount hole. It was just easy, and didn't require a new lug on the frame.
Jus' Sayin' RF.
Cliff did over 106 mph with this 101 in Reno (which is considered high
4]
Charlie,
The old standard piston for this combo is the 2 7/8"Cushman piston. They
are available from Dennis Carpenter Cushman parts fairly quickly. they
have to be relived a tiny bit on the skirt to clear the flywheels and
will require special wrist pin bushes. The pop up is almost exactly a
Bonneville pop up. I looked and don't have any .050s just some .010s.
Dave Clements
Sport Scouts & Antique Electronics
altitude).