After putting Shinko 712s on the front and back, I drove around the block and on the home stretch I thought it felt bouncy.  I probably got up to 35 mph in the home stretch and it didn't feel so much up and down bouncy but forward and back bouncy.  The pavement was flat so it wasn't an unlevel road.  I was wondering if this is possibly the back tire not being square?  I followed the directions and used a beam compass to check the center of the axle nut to the and of the tension screw and I thought it seems pretty close to exact.  I also put the Dyna muffler on and changed the main jet to a 152.5 from stock and adjusted the idle mixture screw.  I didn't notice and change in the idle mixture screw from 1/2 a turn out to 2 1/2 turns out.  I still need to get a tighter clamp on the muffler, but the engine doesn't sound like it's bogging down at all, so I think it's the wheels.

I am using Dyna Beads and removed the lead weight from the spoke.  Could this be part of the problem only going 30-35 mph?  Maybe if I got going a little faster it would balance out?

Did anyone tell you not to do more than one mod at a time?

now you know why.

jcstokes wrote on 04/22/13 at 23:22:24:

Don't cry, JC...
You'll never be disappointed with a Michelin... ...
Shinko owns the Yokohama tire molds,... and their quality is first rate...

More than anything... you get what you pay for with tires...
A cheaper tire,.. will have less tread depth, and given equal traction compound, will last less miles than a comparable, more expensive tire...
... but,... today's tires, are all pretty excellent...
Buying more tire than you need,... based on the amount of miles you ride per year, is a waste...
If you ride a lot,... pay extra for a long lasting tire...
... but,.. tires only last longer for two reasons... they have a firmer compound, or, they have deeper tread...
... a firmer compound, has less traction...
... a thicker tread, has more unsprung weight...
....
... a light tire, with great traction,.. won't last long at all...

... it's all about balance...
Buy a tire that is aesthetically pleasing to you, and will last 4 to 6 years on your bike, based on the amount of miles you ride per year... (after 4 to 6 yrs, tires will start to dry out, and will loose traction, and mileage)...(when they harden too much,... they can become dangerous)......
Longevity, vs traction, vs weight...
There are various tread patterns... some look cooler than others... but, science has mostly made them all pretty darn good at shooing away water...
The rest is just fashion...
(Tread patterns only matter in heavy rain or dirt riding)... on dry pavement,... a slick has the most traction...
Not that I'm immune to fashion... ...
But, buy based on how many miles per year you ride...
... and what looks sexy hot, on your bike... ...