casting

I've had a few sets of go-power wheels and now two sets have had these casting slag marks that are raised up with a sharp edge on a smooth surface where others were peened in this area and polished on the rim and the edges of the holes with no flaws, I've also had some repop Mancos with the same...

Picked up a motor and am trying to I D it... Its red (Honda?) and the head has JT- 04 - 06 - 16 stamped on it. Im guessing gx 160 clone (duh) but what else can i find out about it with these numbers? There are no other numbers or stickers visable on it

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I picked up a set of Sebacs recently that were not of the usually minibike variety. I'm assuming they might be from a moped. Can anyone confirm? They are the same length as the common minibike variety, about 13" but have a different eye casting design on each end. They are genuine Sebac brand...

I posted a want AD for a 14cc head.the seller said i have one, so i bought it. I got it in and first thing i noticed was the chamber does not look like any 14 cc head I've ever seen, even though the casting said zh8. Matter of fact, it looks like every 18 cc head I've ever seen. Im ordering...

Just started tearing down my brand new 212 predator to install some go fast parts. Upon inspection of the cyl head I found what looks like about six or seven cracks in the dome. They r visible with the naked eye and u can feel them by running a finger nail across them. A little closer look with...

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Do you guys usually polish the casting marks out in the chamber. I'm building my engine now and was just curious as to what others do. I'll probably end up just polishing them out to make sure they are not cracks and try to prevent hot spots. The combustion chamber looks like crap.

Hey guys up for sale is my #2 casting pulsa-jet carb. Even though I don't want to part with it, I've got to cut down on some of my "treasures". It's a great carb and completely stock. There has been no modifications done to this carb,and it is not a raptor carb,it has holes for the choke. I'm...

Hey guys im about to start a new build project and was wondering if the casting quality was better on the predator than the 196 clone. Im having a hard time finding a actual gx200, so was thinking of picking up a predator if they are better than the last clones. This is going to be a big bore/...

Casting what is this process me and my freind are melding briggs rods down and we want to make something with them would a cly mold sufice