Yamaha 2400 Generator noise.
:) Hi, I have a wonderful Yamaha 2400 generator. It serves it's purpose fine. But on my last trip, I had to stop using it because of a scraping noise. I did a search on-line and only found one other person with virtually the same problem. After taking some of my generator apart to find the problem, it was on the opposite side of where I thought it was. It sounded like it was coming from the re-coil starter, but in fact was on the generator / rotor side. You need to remove all of the plastic covers. On the exhaust side there is a plastic fan case. A few screws will remove the outer fan cover. Three bolts will remove the fan. Next you will have to remove the rotor; It has one nut and a washer. I bought a steering wheel, or universal small engine puller. I needed some longer metric bolts so the puller would remove the rotor. Then you need to remove four bolts to remove the stater. The inside plastic fan housing has three bolts holding it in place. The inside bolt comes loose and rubs against the rotor and will sometimes lock up the generator. The other two housing bolts are on the outside of the fan housing. To fix this properly, and what Yamaha should have done, is to use blue Loctite on all of the bolts, there fore you need to remove the starter side bolts and lock tight them too. This cost me about $25.00 for one bolt, one puller kit, blue lock tight, and long metric bolts for the puller to do this job. This is not a hard job to do.
