Cruise Mode
I came across a couple photos that weren’t posted anywhere else. They capture the simple version of this bike that I like best. No fairings, race numbers, much quieter and frankly, better looking exhaust pipe rounding out the design.
Custom manifold mates new 26mm Mikuni performance carburetor
Removed the performance carb AGK sent me so I can try out a Mikuni pit bike carb. Amazingly the engine ran first try, but only with the choke on. Some serious jetting work to do. After more adjustments, this thing screems, but sputters at full throttle. Will also be changing the air filter to something more substantial. Getting closer …
Engine Modifications
Should have posted back in October. Splitting the cases on the Honda GHX50 was easy and the performance cam from AGK Affordable Go Karts (the black one) fit perfectly. Big performance boost. Cut and removed the governor shaft plugging the case hole with a glued in bolt. Also removed the weights from the governor flywheel to avoid any potential problems - it’s not needed. Be sure to keep the gear though, it’s part of the lubrication system in the engine.
Quick video flyby
Racing version of the development bike. Still trying out new ideas. More to come …
Mating a 26mm Mikuni carb with a custom manifold to my Honda GXH 50 engine. Testing out an idea …
The race is on!
SoCal Motor Bicycle Racing at Grangé Motor Circuit
More race info/posts on motorbicycling.com: here and here
To the races
Engine is race-ready for this weekend in Apple Valley, CA. Clutch and pulley failure Friday almost ended things, but a quick trip to the local machine shop put it back together. Expecting more than 75 riders Saturday at the Grange track.
Oil Cooling Experiment
It’s been a lot of work for something I’m not completely sure will function. The valve cover is designed to capture the oil as it enters the top of the engine head and routes it through the radiator before returning it to the head - I think. We’ll see this week. More photos to come.
UPDATE: I’ve given up on this idea - it’s not working the way I imagined (probably because it’s strictly air cooled). Nice looking piece of aluminum though.
New parts back from the water jet cutter
Sprocket-side bearing carrier machined and assembled. Waiting on performance engine parts for the next phase. I’m liking how this is coming together.
