How to do a coolant flush?

[hondajt]

I have a 2001 Honda VFR800. It has 14000 miles on it.

How do I change my coolant? I was going to just unscrew the hose from the underside of the radiator, but I would imagine that wouldn't get all the coolant. Plus that would cause air bubble problems.

Anyone got a write-up? I don't have an owners manual, or I would have looked.

[Y2Kviffer]

Download the service manual from here. There is a drain plug on the water pump and on one cylinder head. There are pics in the manual of plug locations.

[hondajt]

thanks a bunch

[NorcalBoy]

Warning: When you first remove the drain plug from the water pump housing, the coolant will shoot a 2 foot long stream straight out of the hole.....don't get taken by surprise!

The replacement sealing washers for the drain bolts are part number 90463-ML7-000.

[drewl]

It is fairly simple. Just remember to check the level once or twice after refilling.
Also, air like to get stuck at the fan switch located at the top left radiator corner.
It will cause the fan not to come on. A quick turn or 2 will allow the air to escape.

[bill220]

Just changed mine yesterday (1998 model). The drain plug on the engine block is hardly worth bothering with. About one ounce of coolant came out when I removed it.

[emptyskull]

I have a 2001 Honda VFR800. It has 14000 miles on it.

How do I change my coolant? I was going to just unscrew the hose from the underside of the radiator, but I would imagine that wouldn't get all the coolant. Plus that would cause air bubble problems.

Anyone got a write-up? I don't have an owners manual, or I would have looked.

there is a drain bolt or plug on the water pump.It is the center bolt under the pump and hose. Make sure you replace the seal manuel says so. add 50-50 coolant let run then check level in reserve bottle good luck but its an easy thing to due..

[two4one]

Make sure you replace the seal manuel says so.

The manual also says replace the crush washer on the oil drain bolt every time but it's nowhere near necessary.

I'm still using the original seal, just did 4th coolant/water change last week. No issues. Your call though obviously.

[Sebspeed]

Warning: When you first remove the drain plug from the water pump housing, the coolant will shoot a 2 foot long stream straight out of the hole.....don't get taken by surprise!

The replacement sealing washers for the drain bolts are part number 90463-ML7-000.

Luckily though, it won't do that until you crack the rad cap. I prop a dollar store rectangular container under the header at an angle to catch the stream.

[bill220]

Warning: When you first remove the drain plug from the water pump housing, the coolant will shoot a 2 foot long stream straight out of the hole.....don't get taken by surprise!

The replacement sealing washers for the drain bolts are part number 90463-ML7-000.

I could be wrong but I think that part number is for the oil plug washer.