Get some peppermint extract/oil and mix a table spoon or two into a squirt bottle (w/water). Spray in your exhaust, spray in your intake (they love building nests there too), spray your tires, around your bike, etc. For whatever reason rodents don't like that crap and will stay away (mice, rats, pack rats, squirls, etc.).
I wouldn't have believed it if it hadn't worked for me. I would trap at least 2-3 mice a year in my motorhome... last winter I sprayed all around the outside, inside, etc... not a one the whole season.
Last edited by 1000RR; 12-04-2012 at 11:32 AM.