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Never missing the opportunity to create problems for myself, I found a clean vintage Snowmobile motor in great shape. It is a JLO/Rockwell 2F440-4 Fanner (440 engine of roughly 40 HP, 5 ports 2 stroke). I am messaging it into shape in hopes of using it on an off road kart that I currently have...

I have seen this type of failure before. It would imply that the two bearings were not concentric (planar). This look to be self aligning bearings, but perhaps the bearing next to the brake is slighly cocked. So, for each revolution, the aluminum is bearing ever so slightly bent. So, this...

The steering is very similiar to some high end Tad-pole trike bicycles. The advantage the bike has is large diameter tires (so the CG was much lower than the axles) and much slower speeds (typically). I tried almost the exact same thing about 3 years ago, but with hand grips tied directly to...

Well, they have to know you are serious, and not just going to buy one or two. If you were looking to buy a container, I am surprised the did not respond. If you were going to buy a container, I assume you have a customs broker, company (with tax ID), and channels by which to sell them...

Ok, after a slight vacation from karting over the long hot Texas summer, I am playing around with the stuff again. The single Engine Kart with the cider block pictures was upgraded with a Chinease TAV2, and has been a work horse. The twin engine kart managed to get the cops called on me. I...

Earlier this year, I found a TAV2 clone in China. I purchased one for test. It has worked well. However, I tested the waters to see if there was much of a market, and even at $110, there was no real interest. I think Comet was selling them for around $185. It is a tough market if the only...

I located a source in China and purchased one of their TAV2 clutches for testing. So far, the clutch has done well. The Kart I have it on is very light, so I initially noticed the clutch would go into the highest ratio soon after a good launch. So, I tought the driven spring was to blame. I...

I will see if I can find some good pics, but aside from the lack of a sticker on the plastic cover and the color of the driven spring, they are identical. As for the spring that comes with the Clone TAV2, they do sell it on several Chinese larger buggies and karts. So, they may work fine in...

I have been testing on a Chinese Clone TAV2. In every way, this is identical to the Comet. The only problem I have had to overcome, is that the Spring on the Driven unit is not as strong as the Comet Green Spring. So, I think I may volume Purchase the Clone TAV2 without the Driven Spring and...

I am playing around with Clone TAV2, and from my experince, use the same final gear ratio as if you were running a centrifugal clutch, so a 6:1 ratio to a 13-18" wheel sounds about right. Next, you will need to set the Driven Pulley spring in the 2nd or 3rd hole to keep the motor RPM higher, or...

Found the Hole, I stopped looking inside the driven assembly and noticed the 3 holes starring me in the face. So, I removed the snap ring, and of course the top plate come flying off. So, how Do I put this thing back together? How many turns between the pulley and the top plate? Thanks, Russ

Interesting. I looked at the pulley side of the secondary spring, and I did not see the hole. Are these holes on the captive or pulley side? Maybe I am just not seeing it on the pulley side. Thanks, Russ

Ok, I have installed a TAV2 on my small lightweight off road kart. Everything lines up, and the clutch is fairly simple. Upon stop, I can sense the nearly 3x reduction from a standard Centrifugal clutch, but once I start to go (with trottle wide open), it quickly goes to it's max ratio, and I...

I worked on a similiar build with a Low Rider mini bike style. I think you found out the same problem. When you and bike share a very low center of gravity, it is difficult to lean and gain balance, especially at low speed. I think the seat above the engine will solve that problem. Russ...

If it idles well when the wheels are off the ground, will it still idle if you stop the wheels. If your clutch is wearing out or needs to be lubircated, then it will be engaging even at idle. The clutch needs to engage at approximately 2000+ RPM, allowing it to idle at between 700 (slow idle)...

Most EPA stickers are on the engine shroud just below the on/off switch, but for some reason, mine is on the air filter cover. Makes any clone engine only a hand nut away from being EPA certified. My Black Clone is a Shandong Huasheng. Russ Barrow Russell ATV

I have been using #35 for a long time, but due to some new parts I have come across, I have started using #40. So far, I am much happier with #40. For karting purposes, this chain will require less maintenance and is more tolerant of misalignment. This is mainly due to the sheer size...

Sounds like there was some water in the oil. You drained it, put in new oil, you should be in good shape. If it makes you feel better, drive it a few hours/days and check the oil again. Tan, nearly clear oil will often darken, or become opaque with use. This is normal. Russ Barrow Russell ATV

On paper, the Red and white clone has the most power and torque. I am still trying to determine this. Most people think the Yellow engine has the most and they are getting to be as prolific as the Blue. I should have some data on a Yellow verus Red and White soon. I have a black, and it has...

Tyler, Look at the EPA sticker on the engine and see who the manufacturer is. I have a black clone, I wonder if they are the same Assembler. Mine was an import from China, so no rebranding. Russ Barrow Russell ATV