Brad I'm sure you already have the AF meter, but check this link out for a smaller one. I'll see if I can find where I bought it and send you more info.
Koso Mini meter..http://www.koso.com.tw/products-deta...id=314&lang=en
I think I bought it on Ebay at a decent price.
I'm kind of guessing that use it to tune it then you may want to take it off as there are times it will run lean or rich depending on throttle and load.