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The typical 30 series torque converter hasn't changed much for quite a while, but with the springs and weights available they seem quite tunable. I don't know anything about the Comet 120, but you certainly must be aware that many of the Polaris vehicles sell for as much as a mid priced car...

I think that 25% off sale they just had was pretty good. If you're that hung up about 11 or 12 dollars, you probably really don't need one that bad. EVERY business, regardless of what it sells has seen its cost go up over the last 24 months. Rent, utilities, insurance, labor. There's a reason...

For building your engine be aware. There are differences in the diameter of the cam journal, as well as the taper on the crank shaft ( the side that the flywheel sits on. Also the bore of the 196 is 68mm. The 212 is 70mm. Everything else is the same. For internal parts ( piston, rod, cam, and...

EZ, how come another 20. Are you way upside down financially? Not really any of my business. Have you worked for wages most of your life? I worked for 51 years total, 45 of them in Drywall. Not really a lucrative career. Social security is about 2/3 rds. Of our income for my wife and I. It's...

Wicked Daddy. Your post # 134 I couldn't agree with more. The problem isn't the kids, it's their gen X know nothing ( at least mechanically ) parents. My own kids are of that generation. 49 & 52. One knows as much as me, the other is a key board junkie. A lot of middle aged men today don't own...

For neck snapping acceleration ( which is what you say you want ) the torque converter is the only way to go. It doesn't have to be pointed towards the rear of the kart. As long as you can get the chain from the TC to the axle, the plate can be clocked in a lot of ways. Raising the engine is a...

WTR is right. Your lifan engine is a great place to start a build. I am thinking that it is probably a 196 cc displacement. Its called a clone engine. EVERY hop up part available for the predator is also available for the clone engine. I have two hopped up 196's, along with 212 and 224. I can't...

E Z, how close to retirement are you? It's definitely worth the wait. Once I turned 50 I started thinking about it often. After 55 I'm sure I thought about it every day. Bailed out 2 weeks after my 65th birthday. Hope you make it.

So the bike had two radiators? It seemed like the one you are installing is pretty large. But if it has to make up for two, makes sense.

Your unorthodox half round key way sounds like a great solution for the problem at hand. Impressive, really. If per chance it doesn't pan out, or another yet unseen malady raises its head on your totally abused clutch, I just saw advertised on Amazon a 40 series driven clutch for $40.95. It...

At 25% off that made the 420 A whopping $290. I bought mine last March for $299 and thought that I got a really good deal. I actually went there today so my wife could buy my Christmas present, ( just a simple hand tool ) and I mentioned that all predators were on sale. She told me buy one, buy...

Where are you going to be using the kart. For example, all my activity is off road out in the desert. I won't even look at a kart that doesn't have suspension. Too hard on the back side. If it's for the street or asphalt, then that's a different story. If it's for kids, I like the roll cages (...

Welcome to the forum. Looks like a Nitrous bottle on Dads trike. A very big one.

I just got an e-mail from Harbor Freight. Tuesday Dec. 16. 25% off on ALL gas engines. Killer deal for anyone needing one.

A big wire wheel on a bench grinder ( I realize you might not have one ) will make all those parts you have in that pan look a whole lot better. Shiny, removes a lot of the stains and discoloration. You won't want to paint them.

NICE JOB. Really looking good. You've got all the right stuff in the engine. Yerf- Dogs are rugged little critters. I have owned a couple of them. They take a beating and keep coming back for more. If you haven't driven it yet, I'll bet it's going to put a big smile on your face.

Great looking work. Bet it's going to come out nice when you're all through.

Is that kart still ridged solid ( no suspension ) in the rear? Also, welcome to the forum. Let's see some pictures of your project.

You have a lot of stuff that most people don't even know exist. Tools from the way people USED to work. Incredible, how smart the people were that invented and engineered these things. From our Golden age. We really were the industrial revolution. Your elderly friend was good to you. Great score.

I already have a fleet, well 4. I had 5 at one time but I can only transport 4 at a time on my two trailers and that's with one of my Sons pulling one. So I sold off one of my Yerf-dogs. The kart I just cleaned up is the one on the far right in this picture. I actually three away the boxes of...