No offense taken. I have owned 3 Tower 46 Engines, and not a single good one in the batch. I did everything under the sun to try and make them run reliably, and ended up baffling myself, and anyone at my club who thought they were better at tuning an engine then me. I have heard it all regarding this engine about how you just need to do this, or if you do this it is great, and gobs of other suggestions from High Needle to Low needle, various Glow Plugs, to tank placement, to air leakage,etc. etc. etc. etc., and have tried just about every suggestion I ever heard no matter how wrong I may have thought a suggestion was. I own 3 Magnum 4 strokes, 2 Saito 4 Strokes, 3 different O.S 2 strokes, 1 Evolution 2 stroke, 1 Thunder Tiger 2 Stroke, 1 K&B 2 stroke, 1 GMS 2 stroke, and even the GMS, and K&B believe it or not are better than them Tower Engines even though they are made by GMS. I got rid of all 3 of mine, and wouldn't take another Tower Engine as a FREE gift. Unless you don't mind "DEADSTICKS", I would suggest you send it back to Tower, and trade it for any other motor they sell. O.S, Thunder Tiger, Super Tiger will save you alot of greif over that Tower Engine. You will find people in here that claim that they can turn their TIMEX watch into an airplane engine, and make it run great, but do a search on this engine, and I think you will find what the general feeling is about this engine, and it is not all comming from people who don't know how to tune an engine. All the other engines I own run great, and I have learned to use what works good, and not spend my time trying to make chicken salad out of chicken sh**!