Try washing your clothes, just kidding
) You can try a sleeping bag liner for your sleeping bag, and wash or dispose and replace when its to minging.
If your hand washing your clothes, it may be that your clothes are not soaking enough in the powder/water long enough.
One way of doing this is to but your self a small waterproof bag from a camping shop. At the begining of a days riding put your clothes/washing powder/water in the bag and seal it. Strap the bag to the motorbike and ride all day. Whilst your riding the clothes will be agitatated in the bag like the action in a washing machine. It might be worth adding some sceented conditioner to the mix, or buy washing powder with a conditioner in it, it may help
At the end of the day, empty water/powder mix and rinse/ring out clothes, leave to dry and your probs should be sorted.
As for your boots, i don't know. You can try a product thats called over here odour eaters, maybe called something else where you are. They are basicaly a charcoal shoe insole. I have wore training shes without socks with these liners and they definatly work.
If non of the above work, try a clothes peg on your nose