Tankslapper Speed Wobble, Weave
SPEED WOBBLE. I need to figure out why this happened so I can make sure it doesn't happen again.
SITUATION: Riding out on camping trip, heavily loaded, fairly wide rear soft panniers clinched tight against a hard pannier rack, front tank side panniers probably 12 pounds each, tank bag 10-12 pounds, Duffel bag strapped to back top plate medium weight, brand new tires and heavy duty tubes inflated to 35psi(Kendra k270's), full 5 gal gas tank, I weigh 265 pounds, this is on a 1994 KLR 650 stock. Had a fender bag on front with tools in it.
On a long flat straightaway I accelerate fairly rapidly up to 80 MPH(thought something on Carb stuck thought I'd try this to clear it out). All of a sudden the bike starts violently shaking from side to side both front and back and was getting worse quickly. I let of the throttle gently and was able to ride it out, but at the time I was sure I was going down. I don't recall exactly but I may have let off the throttle out of the acceleration right before the wobble started.
Can you give me your experience with this and help me figure out why this happened?