I'm currently restoringa 1980 KDX 175 for my son. The motor is missing a carburator, top end frozen, was last run with no oil in tranny, has a broken kick start and is missing a shift lever. Would a later model KDX 200 motor bolt into the 175 frame? If so does anyone have a 200 motor for sale? If not does anyone have a KDX 175 motor either running or for parts?