Post by dirtymoosetaint on Feb 5, 2013 11:27:41 GMT -5
Hey guys so after months of messing around with my TaoTao Atm-50 I figured out the engine is blown. I guess me running it at max rpm to and from work for 2k miles did a number on it lol...regardless I am wanting to put a 150cc engine in it. Can this be done with a simple engine swap or do i need to do any modifications?
The mounts are different, so you would either need to weld in new mounts or buy a swap kit. The only swap kits I know of are really expensive, pretty much making it worth buying a new scooter with the 150 stock.
If you don't wanna get into the motor, then a crate 50cc base would be the way to go I'd guess. If you go that route, Scrappy has that for a little less. I tried to checked shipped prices, but SPP won't give a quote on shipping in the cart for some reason. I really don't know anything about the 80cc crate motors, but they appear to be ready to drop in. As with anything, you'd wanna go over the carb tune at least before riding and change out the shipping oils for quality oils.
Just get a Powermax or EVO 150, for $900 delivered at the door. Powermax is lighter in weight, and smaller, thus goes a tiny bit faster, and has better mpg (theoretically).
The ATM50 is made to run on Premium fuel. In the beginning I did not understand this, and on a small journey literally heard the oil boiling after the ride, inside the engine. Perhaps I was lucky enough to have had some water in the engine, so I could hear the noise, as water in oil makes a popping sound like you put a frozen piece in a frying pan. Pre-ignition / pre-detonation or pinging due to a high heated engine on the compression stroke. Not much, but enough to every time ignite the fuel too soon, and heat up the engine more. The engine is too small, and covered by plastic plating, so it's cooling capacity is too low to adjust to the temperature.
With Premium fuel, less of that energy is converted to heat, and more to actual moving of the piston; because the fuel does not ignite when the cylinder is at the top of the piston, but a fraction of a degree past that point.
Closest to my analysis of the ATM engine.
Last Edit: Feb 7, 2013 22:41:00 GMT -5 by prodigit
Post by oldunclestevo on Feb 9, 2013 8:10:46 GMT -5
Do you have the stock carb on it? I know im a noob but i did find out that the factory sealed carb (which cant be rejetted) runs the engine way too lean, thus the engine overheats and locks up. You might be happy with a BBK and simply putting a new carb and bigger jet on it. Frankly the power of a 150 on the lighter weight 50cc body scares me a little as far as higher top speed.
2012 Tao Tao ATM50
NCY transmission kit, performance exhaust, 85 main jet with Uni air filter. And a NCY 52 mm BBK and head on the shelf waiting.
On the newer tao ATM50's, the engine runs hot, because it's insulated in a plastic, causing less engine noise to be heard, and the engine to get less dirty, or rusty due to water; but also the engine not to cool well. That's the primary reason for it's high temperatures, high performance, high MPG, and low engine life.
Last Edit: Feb 11, 2013 11:55:53 GMT -5 by prodigit