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Guys, I am restoring a Bird Engineering minibike frame. The engine mount had been taken off. I'm welding a new one on. Does anyone know what the engine slot offset is to the right side was? I can post a photo of the frame if needed, it is not a swing arm frame, and it does have a jackshaft, and...

Guys, I have been working on my Predator Hemi 212 race engine that I'm putting into my new prototype flat track minibike frame. More on that at a later date. No race engine, short of one at Indy or Daytona or Springfield has ever won a race purely on horse power. Good drive off the corner is...

Guys, I just ran my newly built Predator Hemi mini bike/kart engine for about 45 minutes, to get it broken in. I wanted to get the oil changed, the cylinder head re-torqued, and the valves re-adjusted. After I drained & re-filled the crankcase, I unscrewed the valve cover. The valves were still...

Guys, I just finished up building my Predator Hemi 212 racing engine. Because we had such a warm day here in WI today, I mounted the engine on my break-in table and ran it for about 45 minutes, at high idle. I wanted to be able to re-torque the cylinder head, change the Red Line 10W40 oil, &...

Guys, I can't find anywhere the recommended assembly torques for the Hemi engine. Small fasteners I have covered, but for the flywheel nut, side cover 8mm bolts, and the 8mm cylinder head bolts, I could used some help. Anyone have the correct data? Brian

Guys, I recently discovered that no one sells the E clips that are used on the rocker arm shafts of the Predator Hemi engine. The rocker arms have to be removed every time you want to remove the head, or re-torque the head.The stock ones are soft, and if you misplace one your screwed. So I did a...

Guys, I just measured the height of the Loncin Predator Hemi 212 starter cup on the original cast iron flywheel, & then measured the same starter cup on my new PVL aluminum flywheel. The PVL set-up is 0.195" lower. I still had the crankshaft in the block, so I installed the PVL flywheel & the...

Guys, Here's what I think I know about this minibike... It was built by Bird Engineering, and because it is a 1" frame diameter model, it was sold by Sears, 1970/1973? What I do not know is the model? The color was red, and it has a very large brake boss, compared to most of the Birds. I know...

Guys, I have come across a NOS Tecumseh horizontal 2 stroke engine, the number is 1500-1550A. It appears to have been used in a 1972 Fox Desert Fox mini bike. The engine is painted white, left hand PTO, rear facing carb, 5/8" keyed shaft. Parts sheets show it to be a mini bike engine, that...

Guys, Anyone out there have a Blitz or Outlaw kart they want to sell? PM me if you do. Thanks Brian