I have an Ninja .12, and Im barely done with break in. Last time I runned it the sleeve where the throtle ball cup goes broke off. I was told to call mugen and they should send me a replacement since its still under warranty. I called mugen this morning and the told me I had to buy a new one. What do you guys think?

afaik there is no warranty.

how did you do that,think your servo end point is a tad to high.

The endpoints were fine. The week before, the setscrew on the ball end came off, and it was striped. I love this engine, I was just getting the hang of the way it likes to be tuned and it was running great. I guess I will have to get a new carb.

oh i see
ya that happend on my sirio
just got a mr12to1ak and hope it works good.

I had a carb once with a plastic fuel nipple that broke off. It was an old carb so I went to my local hobby shop and he was able to order me the part I needed and it was only a couple bucks. You might want to look into that instead of buying the whole carb.

The part that broke is pressed into the carb body, you cant replace it.

is there any feed back on the mario tuned ninja`s yet and pipes

Guess I was thinking you were talking about something else. Still not quite sure what you broke though...

I've heard a rumor about the magnesium coolinghead breaking....
I've had this once with an OS max engine, this one, I thought I lost a tyre, but as this tire was blue, it was something else....

So you continue to spread rumors? I know of many that have these and not had any issues. If its a rumor, why continue if its not true???

Sorry I just don't understand why people do this.

I heard a rumor that it made other car's motors blow up!

ok how do you break in this motor when its in the car
i dont have a bench.
should i idle for 500 tanks,

You know Wally, you should really consider buying a break-in bench. You buy enough engines for it to be worth the investment.

HMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMMM
but i live in a high rise.
guess i can go to some parking lot and mount it on a table
but then i have to get a prop starter

then ill probably get a plain

now thats