Separate names with a comma.
Traditionally, reverse flushing is the starting point. High pressure water in via the usual outlet. If there's a radiator repair shop in your...
Main thing for real supercharging is "no overlap" Sorry, GG you've poked the bear. that's bullshit. At high boost pressures an old way of...
Taking a few thou off the base circle and hand blending it into the ramps was feasible when we were all racing singles. If you dropped a valve you...
Cam design has always been a can of worms. Old days it was calculate the lift/acceleration rate per degree of cam rotation. And if you had enough...
No it was pretty cheap actually. The new profile was cut out of the existing one and the difference in base circle was accomodated with thicker...
Normally on a bucket and shim OHC setup, the stem centerline will coincide with the cam centerline. The bucket bore centerline may not. An offset...
A couple of points arising...Plasticene is temp sensitive. Cool the head and the plasticene and it'll stay firm enough to cut and measure....
Not an uncommon development in an engine design which has been around for a while. Longer rods are a help in reducing angular friction if you're...
The general convention with coils is that the green should go to the larger of the coil terminals - if there's a size difference. If they are the...
The longer rods are matched to shorter pistons. Block height is identical. Other than the valve stem OD the head geometry is also identical.
Took the crank off the guy who was going to do it. Huge backlog of work as he's not been well. Took it to another long time machining source who...
If nothing turns up there is a fix which I've used. There's a eutectic overlay which is applied to cam lobes by gas welding. I got a part stick...
That was a trick used locally on twin shock motoX bikes in the 60's and into the 70's. Very hard at that time to get alternative springs. To get...
Check what size M/c is on my one. It was Rob's original beast and has been raced with that caliper/M/c combo. The disc on it is full thickness -...
I really wouldn't have thought you'd need a slipper clutch Mike. Is it just to be lazy and not touch the clutch lever ? Anyway, Sigma do one for...
The low modulus is compensated for by using deeper, wider section frame spars. The very simplistic way it's done on the 250's doesn't help weight...
The deltabox FZR250 frame isn't particularly light. In particular the rear subframe is heavier than needed. At this performance level I see no...
Those broken screws are gonna be fun. May i suggest a soak in penetrating oil - 50/50 ATF and Acetone. Followed by gentle heat and the application...
The orange fairing is a generic Yamaha TD/TR 250/350 one bought secondhand off trademe NZ. There are still people making them for classic, post...
Still held up waiting for the crank for the good engine. So buttoned up the spare. Early Starmaker head and barrel. Heavily ported. New OE .010in...
