guage

I want to first start by saying, I have 2 bikes. A 2004 FE450 and a 2003 FE650. The 450 starts on the button with great pace. Easily and all the time. The 650 is a dog, it struggles like no tomorrow. It will start on the button but ive always felt the battery is nearing its end. A yuasa...

I have always considered 12 psi front and rear was the standard, however, the berg manual is talking about 14psi as the standard. What do most use as pressure front and rear and how accurate are the tyre guages. I was told the pencil type are cheap and accurate... but not so sure.