You have a lot of scoring on the ring and piston. It doesn’t appear to have seized, it just appears to have a lot of run time on it.@Dan Brown @flattop1
ok so I have discovered that the pulse orifice is configured correctly with with the gaskets as well as not clogged (just to make sure). I haven't gotten my carb part yet so haven't been able to test anything but here is some pictures of the cylinder, rings, and piston
Ok if I'm being honest, what does that exactly entail, I'm a noobie when it comes to these engines, is there any great resources out there for rebuild guides? I've rebuilt a kt100 and put a new piston in it etc. But that was kind of of a different type of project, what should I buy, should I go to a machine shop ect?Your spark looks great, if You have fuel getting to it then I would say you need at least a top end overhaul,the low compression would be the problem. With only 120 lbs. it is going to have to be done regardless if you can get it started or not.
If I'm not mistaken I found a piston kit on Cometkart.com for 1000 with a piston and ring, and i could get a cage bearing too, would that not work? And then could go get it honed for 30$ at a machine shopThe cylinder will need to be honed, do not use one of those parts store flex hones they taper a cylinder and put it out of round in a hurry. A new piston and ring need to be fitted, I always change the upper rod cage bearing and pin too, the recommended life of Them is only 6 hours. If you were closer to me, I am in NY, you could bring it to my shop and I could look it over good and see exactly why it won’t start and what it needs internally. The problem with leopards is the cost of a rebuild now can be more than the engine is worth. A couple years ago a fast leopard was $2000 to buy one, now they are $500 .
The ground wire running from the battery is connected to the engine, so the coil ground needs to connect to the engine as well to complete the circuit, running a ground to the frame won't help. You have good spark in that pic you sent, so electrical issues seem to be ruled out at this point. I believe the low compression is the problem.Also I found a picture of 2 grounds in a user maul for the leopard and was wondering what you think about it. It shows the guy putting a ground onto the chassis from the coil.
Yah I tried an outboard starter and it didn’t work, I’ll probably go the engine rebuild route, I have a machinist that does banchie engine, is there anything specific I should tell him or should I just say hone it, because I have no kart mechanics around my location.Are you cranking it with the onboard starter or are you using a hand held remote starter? Leopards are notorious for having spark with the plug removed , but when the plug is installed the engine compression causes the built in starter to spin the engine slower, and it is not enough rpm to allow it to spark. We always start them with a hand held starter when they are cold, once warmed up and they will sometimes start with the onboard starter.
If I'm not mistaken I found a piston kit on Cometkart.com for 1000 with a piston and ring, and i could get a cage bearing too, would that not work? And then could go get it honed for 30$ at a machine shop