Based On 2 reviews.
I had it in a model and it worked. I took it out and put it in another model over the winter. Now the motor works( make a humming sound) but will not pump at all. There is no way to disassemble to repair it
I put this on a 55cc dle on my yak and it's the best smoke pump I've had I've tried others that cost as much as $170 that have burned up when the fuel tank emptied this little pump is a diaphragm pump and it doesn't care if there's fuel flowing through it it doesn't burn up I bought like 6 of them for all my airplanes