hey 100psi is low on your compression, it would start better when warm because your rings expand when hot, 90 octane gas is crap get 94 or higher always. if the pilots jets are cloged it wont start easy but try some new gas first,if not take the bowls off the carbs an clean with carb cleaner spray all the gas passages or take the main an pilots out an spray with compressed air. if you think your wheel bearings are bad they proubaly are you can tell by spinning your wheel.your crankcase is dirty from your clutch change your oil :beer: