Same feelings here, I bought my 1994 model IV-1200 a few years ago, it had the 912 with Bellcrank throttle, could not ever balance consistently, so that it would stay balanced, last winter I changed the engine mount to the slightly beefed up improved one, and did all hoses etc, and put in that Mcfarlane throttle cable, did it and set up as instructed, and love it, works great, smooth, consistant and reliable, worth every penny!!