Excessive vibration?

[Stonecoldchavez]

Originally Posted by Beanhead

I took my bike out for a ride tonight, and specifically paid attention to the buzzing. I swear the buzz is the same at 30mph as it is past 80 (to a point, get past 110 and the buzz is greater, but only to a point). It's really, really, hard to differentiate. The only time I noticed the "buzz" increase, was if I was low on the rpm's, for example (arbitrary as I didn't look at my gauges (I know, I know...)), 6th gear at like 4K rpms, or something similar.

Another thought occurred to me, are your carbs in synch? I'll bet the 929 and 1K gixxer are fuel injected, and that probably results in a much smoother ride simply due to the precision of fuel delivery.

Now I'm curious, and kind of wish I could take YOUR bike for a ride just to feel what you're talking about!

Good point. Yes, the Gixxer and 929 were fuel injected.

The vibes are more pronounced above 80mph in top gear. At ludicrious speeds it is worse.

Funny you should mention carb synch. I had it done last year. But all last year and this year I have been having troubles with my bike when it gets real hot (like in traffic). The bike starts to surge at idle and occasionally stalls on me. Often I have to keep the bike revved to 2000rpms at idle just to keep it from stalling. I am thinking something is wrong in the carb synching or the jets are too rich. My next thing is to check the condition of the air filter. I haven't done that since April.

Where are you located? You could come ride it......

Stone

[Stonecoldchavez]

Originally Posted by kawagirl

Yep just undid the starter assembly, took a little sand papter to the connectors to get rid of the carbon and she is as right as rain. That site you gave me was right on time, thanks.

Was it a PITA to take the switchgear completely off?

Actually lets discuss this in your orignal thread about it. OK?

Stone

[Stonecoldchavez]

Originally Posted by stoinkythepig

My 9R buzzes a bit at highway speeds when it's in need of chain lube. Try chain wax and see if it helps.

Thanks. I just lubed it last weekend though. I use Maxima Chain Wax.

Stone

[Beanhead]

Originally Posted by Stonecoldchavez

Good point. Yes, the Gixxer and 929 were fuel injected.

The vibes are more pronounced above 80mph in top gear. At ludicrious speeds it is worse.

Funny you should mention carb synch. I had it done last year. But all last year and this year I have been having troubles with my bike when it gets real hot (like in traffic). The bike starts to surge at idle and occasionally stalls on me. Often I have to keep the bike revved to 2000rpms at idle just to keep it from stalling. I am thinking something is wrong in the carb synching or the jets are too rich. My next thing is to check the condition of the air filter. I haven't done that since April.

Where are you located? You could come ride it......

Stone

I'm waaaaaaaaay the heck up in Massachusetts, near the New Hampshire border. It's the place spiders will crawl to in order to die!

Speaking of carbs, I've never had that issue when it gets hot, and I keep my bike in Florida for the winter, and part of summer. Basically, I've ridden it in stop and go traffic in 90+ degree humid weather a lot. Come to think of it, it's high 80's and humid up here in MA today, and I rode into work, which entails a fair amount of stop and go.

Anyway, when I got my carbs serviced this past May, I was told by the dealer, that they drilled out the mixture screws, and the mixture screws were set at roughly 3 additional turns for a richer mix. It pulled noticeably harder. Maybe your carbs are running super-lean stock? I guess what I'm getting at, is that it's not inconceivable that a lean-set carb in conjunction with needing synch, could cause a barely noticeable "rougher" running engine that ultimately expresses itself in the form of that buzzing past 80?