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I've been looking at building up a few of my engines since I have some extra cash laying around currently. I decided to look for flywheels first and I've noticed the market is flooded with '10k rpm cast aluminum flywheels' and that doesn't really seem like a good option to me. Opinions?

Are there any aluminum flywheels available for the Honda GC190? A guy I did a job for gave it to me since he couldn't get it to run right. It came off his log splitter. The fuel pump in it was shot. I retrofited a Briggs 5hp flywheel to it (it fts almost perfectly! Just needed a few minor bends...

So I have this stiff chassis that I can't really use out here on this property. It's way under powered, and the lack if suspension makes it very incapable. I've had the idea for a while of finding a junked Polaris 4x4 four-wheeler (they have chain drive front differentials) and cutting and...

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My buddy has been building a bike with a 79cc predator I sold him and he's recently started on upgrading the performance. He recently upgraded the valve springs to 18lb predator 212 springs. This upgrade was supposed to work just fine with the 79cc also. The issue he ran into is the springs are...

A buddy of mine is working on building up the 79cc predator engine I gave him for a little more performance. He wants to lap the valves and possibly send the head in to get a multi angle valve job done. He's concerned that the valves exterior are either coated or case hardened and doesn't want...

Just curious if anyone has used one of those springer seats from Amazon. It would really match the look on my mini bike and it would give me a little more comfort. Here's the particular one I'm looking at. https://www.amazon.com/gp/aw/d/B06Y5TVH1Q/ref=ox_sc_act_image_1?smid=A1RJZ61WP5W5XI&psc=1

I finally got my mini bike back a few weeks ago and got it running and riding beautifully. But there's one problem, it's not fast enough lol. I've looked into building my engine up a bit and putting a CVT on it, but that is pretty expensive. So I just put the idea of making the bike a bit faster...

A while ago I picked up a 2 seater dingo style go kart for 40 bucks. The engine was locked, so it kinda sat around for a while. I picked up a 224 from harbor freight for only 60 bucks a few weeks later planning to bolt it on and have fun for 100 bucks. Well, life got in the way so I didn't get...

Alright, I'm looking into building a 3hp up to maybe 6 or 8 hp. Yes I know that's stupid and is gonna be expensive, but I don't care. I've set my mind to it, I'm going to do it. This build is however another year down the road, I'm just getting ideas stirred up. I can find an aluminum flywheel...

Don't get me wrong, I love the V treads I have on my mini bike, but I'm gonna have it on the pavement alot more than I used to, and pavement wears those V treads fast (I have them on my fourwheeler and I've ridden it on the road alot, and it wears those treads stupid fast). I was wondering if...

Welp, I have been really busy getting the house over in Oregon ready to sell, and now getting this house in Kentucky in livable shape (not a ton of work, next is the well filtration system replacement). But now that I'm over here in Kentucky I was able to get my bike back. I sold her to my...

So I'm thinking of putting my 459cc predator on my go kart. The thing has one of the octagon dingo style axles. I don't plan to stick with this setup, but I was wondering how long you guys think it would last. Thanks!

I haven't been able to anything with any of my projects anytime recently since I've been getting everything in the house packed up and ready to move. I had to downsize a lot. I ended up giving my full suspension buggy away to a guy who wanted it to build with his 4 young boys. I'm glad it went...

I wanna build out my 224, but that is kinda expensive. Do 212 hop up parts work on this? Thanks

Well guys, I've been super busy with remodeling the house and with school, so I haven't been on for a while. If anything I'm gonna be even busier now. I've just got so much on my plate that I simply don't have time for already, so all my projects got thrown on the back burner. What I came to...

I haven't been on in a while, I've been way too busy with other stuff to do anything with may buggy. I recently logged back on and remembered that I was gonna buy a tubing notcher off Master Hack. I paid him for it and he shipped it out. I got it in today and did a test cut and it worked really...

I'm not building anything with a jackshaft, but when I did it took me a long time to figure out the gearing. I figured I'd ask a few questions so I can learn about these incase I need to use one again. My number 1 question is if I have the same tooth sprocket on both sides, is the gear ratio...

As you might know I have a 1969 honda ct90 project that is a long term project. I decided I wanted a 2 stroke in it so I started researching engines. I found a relatively small motor that would be grate for the HP and speed that I want (about 65mph top end and 55 reliably) if I gear the bike...

Monday is likely the last day I'm going to see my mini bike. I've been toying with the idea of selling her, but I've never gotten brave enough to do it. My uncle fell in love with the thing when he hopped on it today, and he asked me if I would sell it. I told him I'd sell it to him if he takes...