rattle at 30mph

[tazman5157]

i have encountered a rattle at 30 mph on accel or decel or if you hold the speed there only if you are by yourself.. i have tightened all visible bolts that i can see but nothing changes... any ideas? its driving me crazy

[bigbench400]

Look it up in the threads Headlight Rattle I think this might be ur problem--maybe the shocks rotate the top cover or get progressive shocks

[Venjurak]

i have encountered a rattle at 30 mph on accel or decel or if you hold the speed there only if you are by yourself.. i have tightened all visible bolts that i can see but nothing changes... any ideas? its driving me crazy

I've had the EXACT same problem. Never been able to lock it down. Originally I had a rattle in my speedo which I fixed but the 30mph rattle seems to be coming from somewhere in the front of the engine but I cannot find anything loose that would cause the rattle. It only happens at exactly 30mph just a little over or under and it goes away. Very strange.

[chadwce]

I had a rattle that turned out to be the small silicon rubber grommet that isolates the heat shield needed to be replaced.

[wvhillbilly]

i had the same issue with my xr and as some one said the speedo always rattles on these bikes. fixed that and it was still there so i kept on looking and found it to be the radiator cover at a certain speed, so a black zip tie through the mesh and around the frame fixed that also. these rattles come and go.

[lv2cruz]

Might also check your horn bracket. I had a similar rattle, drove me nuts. Finally found that the horn bracket was vibrating. Tightened it up, all is well. Just a thought.

[Venjurak]

Thanks guys! I'll check these clues out. This thing has drove me nuts for a couple of years. I had to replace one of the rubber gromets on the rear cyclinder pipe about 2 years ago. I will check the front cylinder head as well as the horn bracket and the radiator cover. Thanks for the tips!

[Venjurak]

Ok, so far no luck in finding the rattle. Weird thing is that rattle disappears when riding with my wife in the back. Can't explain it. If it is just me, I get the 30mph rattle. I hear it when I am decelerating and it hits the 30 mark briefly or if I drive at 30mph, it is a constant rattle. Just not if my wife is on the back.