I've been getting difficult starting in my 76 cb750f in the rain w/ stock everything except for MAC style muffler. I recently did the tappets and found them pretty tight after about 2k miles and now it's, maybe, fifty percent better in the rain. My bike is kickstart only, everything else appears to be in good condition - points seem good, checked timing +/- 2k miles ago, haven't synched carbs, bike has about 14k on it. I'd love to run pods for aesthetic purposes but I'm afraid performance would suffer.