I"ve got a 90 safari LXE, and it doesn"t seem to have the power it should have.I swear it would"nt even spin the track on take off. The carbs have been cleaned, and I"ve tried 3 or 4 sets of Br9es plugs. It"s also real hard on fuel, REAL hard. Should I be looking at clutch cleaning?, or perhaps it time for a timeing check?I"m at my wits end. Maybe I"m spoiled by my 7500,or my venture 600, but this is driving me nuts Thanks for any suggestions.