1989 Ski-Doo Repair Manual, Page 570Get this manual
FRAME CLEANfNG" Section 07 BODYFRAME Sub-section 02 (FRAME)
FRAME WELDING
Steel frame:Electric weldingAmperage: 70-110 Amp- Voltage: 20-24 voltsRod: E-7014 (332 in) Aluminum frame (refer to specialized welding shop)Argon-oxygen! acetylene weldingRodER-4043 (332 inl CAUTION: When electrical welding is to be performed anywhere on the vehicle, unplug the multiple connector et the electronic box prior to weldingThis will protect the electronic box against damage caused by flowing current when welding
NOTE: For aluminum frame use "Aluminumcleaner" and follow instructions on container, COursol cleaner or equivalent)
Clean frame and track tunnel with appropriate cleaners and rinse with high pressure hoseOn liquid cooled models carefully clean radiators and check condition of radiator protectorsThe protectors should extend far enough to the track from rubbing on the radiators