I HAVE A 1985 DT85 SUZUKI AND HAVE REBUILT IT BUT CANT REMEBER IF THE OIL SEAL AT THE BOTTOM OF THE POWER HEAD GOES INSIDE THE ENGINE OR NEXT TOO IN THE SAME GROOVE THAT THE WASHER THAT FITS OVER THE END OF THE POWER HEAD AND GIUDES THE SHAFT INTO THE ENGINE AS THAT WASHER NOW MAKES A LOUD...
i have a 1985 dt85 and lately it have been going and starting fine but sometimes it just dies like its not firing or its run out of feul. i have had it serviced and had all fuel lines replaced right too the fuel tank also had timing and spark plugs replaced then you hit a bump and off it goes...