So, I have a 21 year old Kuwahara Savage something-or-other MTB that has new (as of the last couple of years) shifters/brake levers. Lately, it has started hmmm refusing to stay in gear and when I try to upshift or downshift it goes mental. The front chainring gears aren't working right, either.

My DH, the novice "Wrench" has tried to fix it twice but in fact, it's getting MUCH worse. He insists the chain is fine, as well.

I'm completely FAIL at fixing bikes - I used to take it to an LBS when I lived near some, in Vancouver.

Now, there isn't an LBS within a lightyear of us so I'm stuck with DH the novice Wrench trying to repair my favouite bicycle.

Any clue as to what is wrong with my poor bike???