Honda VT750DC ACE Service Interval And Recommended Maintenance Manual page 60

Honda VT750DC ACE
Step 5: Drain and flush the reservoir:
Step 6: Filling and bleeding the new coolant:
60
Remove the cap from the coolant reservoir.
The service manual tells you to remove the reservoir and
drain and flush it off the bike, but that would mean
removing the gas tank AND the radiator, which is a
pain... so what I did was just remove the lower hose
from the reservoir (see arrow) and let it drain out. Now,
there's a little bit that is left below the hose level, so I
took my garden hose and put it in the filler hole and
gently rinsed out the reservoir until all the old fluid had
been washed out. You can tell this when there is no more
foaming and no green color anymore. Let the water drain
out and then take the new coolant and put a little into
the filler at a time until the new coolant displaces the
water left in there and green coolant is running out the
lower hose nipple. Now you can reconnect the hose.
Here is the coolant you should be using. It comes in 1
gallon (3.85 liter) jugs which is more then enough to do
the ACE.
Service Interval and Recommended Maintenance Manual