Tire pressure should be 36 psi front 42 rear. I found mine to be 34 & 36 respectively. I never check it from day one when I picked up the bike from the dealer. Who knows, maybe the rear was low from the start. For sure, there were no vibration until after I tightened the chain. I will check the rear tire for puncture tomorrow morning. I ran out of daylight when by the time I pump up the tires to spec. Maybe the tire was loosing pressure all along and it finally got low enough for me to notice. I'll see how it rides tomorrow morning going to work.
The chain was adjusted to 1.2 inch slack yesterday while it was up on the center stand. Now that I know it should be done while on the side stand ... I got my kid sitting on the bike with an additinal 60 lbs on the seat to total my weight. The chain slack is now 0.8 inch. Still within spec. I'll leave it as is. Don't want to mess with it anymore. Is it possible a very loose chain (pre-adjustment) allows for a smoother ride? Maybe a tighter chain, but still within spec, allows for more vibration?
The wheel alignment is correct. I turn the reference screws equally the same number of turns for both sides. The stamp reference mark also is the same for both side. They were also equal settings from the factory.
One more possibility ... I tightened the exhaust header bolts a tiny bit, as required per maintainance schedule at 600 miles.
So, to sum it all up, here are the possibilities ...
1/ Low rear tire pressure. I just did not notice until after I tighten the chain.
2/ Tighter chain, but still in spec, allows for more vibration.
3/ Increase vibration is natural as the new tight engine loosens up during the break-in.
4/ The header bolts needed tightening? Well, I did it. We'll see tomorrow
-bill
Topic: 2007 Bandit 1250 ABS: 660 miles ... Vibration (Read 8380 times)