jamyers
Well-known member
Original build thread from 7 years ago: http://www.diygokarts.com/vb/showthread.php?t=14872
Basically it's a lengthened "ThunderKart" with an electric start Briggs 8hp flathead that I rebuilt, ported and relieved years ago.
So...6 years ago, the kart carburetor started flooding every time you drove over the least bit bumpy ground, I got tired of messing with it, the kids moved on to sports, etc, and the kart got parked in a shed.
A month ago, my son (now a college freshman) comes home due to Covid19, drags the kart out, and we start messing with it again. Cleaned, lubed, new gas and oil, but the Walbro LMT just wouldn't run worth a darn unless it was on nice smooth pavement, and then it was pig rich...and going around on a soccer field was enough to flood the engine out completely.
We found the old "Keihin" clone PZ26, drilled and tapped another hole in the angled intake manifold, got it mounted, disconnected the governor linkage, and whaddyaknow - it started, idled, and seemed to be able to take a load without flooding insanely.
So I took it for a spin around the Campgrounds - and HOLY COW that thing runs like a scalded dog! On a gravel road it's nothing to hit the throttle and have the rear end start coming around, and out on the large play field it pulled like a freight train! BIG SMILES for me - right until the drive chain broke apart in 3 lengths, leaving me to coast along still smiling.
Now I need to go get some more chain!
Basically it's a lengthened "ThunderKart" with an electric start Briggs 8hp flathead that I rebuilt, ported and relieved years ago.
So...6 years ago, the kart carburetor started flooding every time you drove over the least bit bumpy ground, I got tired of messing with it, the kids moved on to sports, etc, and the kart got parked in a shed.
A month ago, my son (now a college freshman) comes home due to Covid19, drags the kart out, and we start messing with it again. Cleaned, lubed, new gas and oil, but the Walbro LMT just wouldn't run worth a darn unless it was on nice smooth pavement, and then it was pig rich...and going around on a soccer field was enough to flood the engine out completely.
We found the old "Keihin" clone PZ26, drilled and tapped another hole in the angled intake manifold, got it mounted, disconnected the governor linkage, and whaddyaknow - it started, idled, and seemed to be able to take a load without flooding insanely.
So I took it for a spin around the Campgrounds - and HOLY COW that thing runs like a scalded dog! On a gravel road it's nothing to hit the throttle and have the rear end start coming around, and out on the large play field it pulled like a freight train! BIG SMILES for me - right until the drive chain broke apart in 3 lengths, leaving me to coast along still smiling.
Now I need to go get some more chain!