Tools needed:
1. Gallon of Distilled water
2. Metric sockets and socket wrench (small sized for the hose clamp)
3. Siphon
4. .63 gallon worth of coolant
5. Catch pan or container to place old coolant in.
6. small Metric wrench (for the main drain bolt)
![Image]()
Don't mind the allen wrenches you don't need them...
Start off by removing your fairings. You can get away with just removing the left side, but for ease of access I chose to take them both off.
Draining:
1. With the bike cold, loosen the radiator cap located on the top left side of the bike to relieve the pressure.
![Image]()
2. Position your catch pan underneath the bike. Now use a small Metric wrench to loosen the drain bolt located above the exhaust headers. This bolt is distinguished having a copper washer. This should drain quite a bit of the old coolant.
closeup
![Image]()
image further back
![Image]()
3. Next you want to drain the coolant from the hose coming off the radiator. Move your catch pan underneath the hose and begin by using you a small socket wrench to loosen the bolt for the hose clamp. Once the clamp has been loosened, gently pull off the hose from the radiator and drain the remainder of the old coolant.
![Image]()
4. Next comes draining your coolant reservoir
![Image]()
Use a siphon to suck out the old fluid. Siphons can be purchased at most automotive stores and are inexpensive. It's a good idea to pour some distilled water inside if there are visible deposits and repeat the siphoning.
Flushing
Now that you have the coolant drained, you must prepare the bike to have the coolant system flushed.
5. Start off by reattaching the hose to the radiator and tightening the hose clamp
![Image]()
6. Now reinstall the bolt with the copper washer located near the headers.
![Image]()
7. Start filling the radiator with Distilled Water. I don't recommend using any automotive type flush treatments as they can be harsh on your bike's cooling system. But if need be, you can add a couple of tablespoons of white vinegar as a flushing agent (just like a coffee maker). It's acidic but won't harm your system. Once the radiator is filled, I usually squeeze the hoses coming off of the radiator to "burp" the system. This helps get trapped air out. Fill the coolant reservoir too with Distilled water.
left side
![Image]()
right side
![Image]()
8. Now replace the radiator cap and run the bike until the fans start up.
9. Wait a few minutes until the bike cools and repeat the draining process.
10. Tighten everything up again and then add your coolant. The Triumph Service Manual states .63 gallons. In most cases you will not be able to add the whole amount until the new coolant has begun circulating the system.
11. So.....Run the bike again with the new coolant you added, and let the fans start up. Take note of your coolant level on the reservoir. Add more coolant as necessary to the coolant reservoir
![Image]()
It's a good idea to hose down or wash your bike afterwards since it can get kinda messy.
1. Gallon of Distilled water
2. Metric sockets and socket wrench (small sized for the hose clamp)
3. Siphon
4. .63 gallon worth of coolant
5. Catch pan or container to place old coolant in.
6. small Metric wrench (for the main drain bolt)
Don't mind the allen wrenches you don't need them...
Start off by removing your fairings. You can get away with just removing the left side, but for ease of access I chose to take them both off.
Draining:
1. With the bike cold, loosen the radiator cap located on the top left side of the bike to relieve the pressure.
2. Position your catch pan underneath the bike. Now use a small Metric wrench to loosen the drain bolt located above the exhaust headers. This bolt is distinguished having a copper washer. This should drain quite a bit of the old coolant.
closeup
image further back
3. Next you want to drain the coolant from the hose coming off the radiator. Move your catch pan underneath the hose and begin by using you a small socket wrench to loosen the bolt for the hose clamp. Once the clamp has been loosened, gently pull off the hose from the radiator and drain the remainder of the old coolant.
4. Next comes draining your coolant reservoir
Use a siphon to suck out the old fluid. Siphons can be purchased at most automotive stores and are inexpensive. It's a good idea to pour some distilled water inside if there are visible deposits and repeat the siphoning.
Flushing
Now that you have the coolant drained, you must prepare the bike to have the coolant system flushed.
5. Start off by reattaching the hose to the radiator and tightening the hose clamp
6. Now reinstall the bolt with the copper washer located near the headers.
7. Start filling the radiator with Distilled Water. I don't recommend using any automotive type flush treatments as they can be harsh on your bike's cooling system. But if need be, you can add a couple of tablespoons of white vinegar as a flushing agent (just like a coffee maker). It's acidic but won't harm your system. Once the radiator is filled, I usually squeeze the hoses coming off of the radiator to "burp" the system. This helps get trapped air out. Fill the coolant reservoir too with Distilled water.
left side
right side
8. Now replace the radiator cap and run the bike until the fans start up.
9. Wait a few minutes until the bike cools and repeat the draining process.
10. Tighten everything up again and then add your coolant. The Triumph Service Manual states .63 gallons. In most cases you will not be able to add the whole amount until the new coolant has begun circulating the system.
11. So.....Run the bike again with the new coolant you added, and let the fans start up. Take note of your coolant level on the reservoir. Add more coolant as necessary to the coolant reservoir
It's a good idea to hose down or wash your bike afterwards since it can get kinda messy.
