Further adventures with a Honda GX140

65ShelbyClone

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A little backstory; I've had this engine for decades. I don't remember exactly when I got it, but it was probably around 1994±. It's been abused, apart, reassembled, modified, neglected, etc, and it still has the original side cover gasket. It was going to be a hemi/nitro project that stalled way back, somewhat due to parts availability. That problem was sorted and I got a minibike frame recently that needs an engine, so now it makes more sense to hop-up this little brother of the GX160.

20261018_161955w.jpg

It's orange due to the previous Chrysler hemi theme. I decided to abandon the hemi head shown above since it lowered the compression so much and a blower isn't in the cards anymore. In its place will be a 15cc clone head with 1.3 shaft rockers and a 27mm carb. The large carb is intentional to match the larger head and valves as I want to spin this engine pretty high. Even though the cam is stock for now, the torque peak should occur higher in the rev range than a 196 or 212 because the displacement is so small.
 

65ShelbyClone

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I got one of the $36 chinesium billet connecting rods for this because I'd like it to not blow up right away, but also don't care that much if it does and don't want to spend gobs of money.

That was a PITA. I knew going in that the bolts are garbage, but only found out after getting it my hands that they are also this stupid metric diameter with an inch thread pitch that you can't actually buy. Fortunately it's possible to modify the rod and cap to use 1/4-28 bolts like the ARC rod they copied, but man, its just not worth it. I had to order the tap, order new bolts, dig up a reamer, and do the work. Get an ARC rod and be done with it.
 
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