First, is this a 1987 1200, last year for 1200's, or is this a 1500, 1988 ? 1987, 1200, fork oil, If you just change the oil without doing a full teardown then 323 cc ( 10.9 oz ) If the fork's have been taken apart for new seals then, 345 cc ( 11.7 oz ) Ask your local dealer for the right oil.
I use SAE 10-40 takes about 3.2 liters. You have a dip stick also.
That would be 345cc or ( 11.7 oz ) Be sure equal amount in each fork.
The Goldwing trike weighs 892 lbs or 404.6 kg.
50-100 USD
792 lbs
83 horsepower
150psi , per. cyl. J.H
This bike takes about 3.7 quarts.
330ml per fork
4 oz. in each fork.
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