4 hp 4 stroke 2012 Yamaha motor foreword gear sifter keeps jumps out of gear when under load checked gears at foot and looked like new how do i adjust cable

SOURCE: misfiring passat 1.9 tdi when

Spark plugs in a TDI?

SOURCE: Keeps jumping out of second gear. Tore down the

The gears ARE probably fine. The problem is a slightly bent shift fork. Since the engine is apart I would STRONGLY advise you replace the shift fork. If nothing else it is cheap insurance that you won't have to replace it four weeks later because it won't shift into first. I have replaced shift forks that looked perfectly good but were bent such the you couldn't get into 2nd gear. Looks can be deceiving.

SOURCE: 1981 Yamaha XJ 650 Motorcycle shifting problems

Sounds like you already know the problem. Find someone who can rebuild the transmission in it.

SOURCE: Yamaha 30 HP 3 cylinder 2 stroke

Did you change plugs? If you did chek the plug to see if piston has hit the end of plug. Do a compresion check Jim OMC retired Mech

SOURCE: I have a 2006 Yamaha TT-R 230. It was recently

.hAVE YOU TRYED TAKING THE CARB OF DRAINING IT CLEANING IT AND DRYING IT. CHANGE THE SPARK PLUG JUST IN CASE YOU HAVE GOT WATER INTO THE HEAD START IT UP AND LET IT JUST TICK OVER FOR 20 MINS. JUST AN IDEA STUFF TO ILLIMNATE. GOOD LUCK BUDDY