Pause frequently to let the air bubbles escape.Įventually the coolant will come out of the bleed screw hole. Then slowly fill the engine, pouring it in slowly and carefully. Loosen or remove the bleed screw (dark blue arrow, photo above). To refill the coolant, pour the mixture (50/50 or 60/40 coolant/water) to the correct level in the overflow tank. I measured the old coolant that came out of the bike including the overflow tank, it amounted to about the 2.8 liters that the manual says the engine should hold. I chose Prestone Extended Life 5/150 Antifreeze Coolant ( Photo 6), hoping that I’ll maybe never have to change the coolant again? This Prestone product is supposed to last for 5 years or 150,000 miles. Make sure the replacement coolant is compatible with aluminum engines (most of them are). TIP: Here’s a tip that I will use myself next time I change the fluid: buy a replacement O-ring from the Triumph dealer next time you order some parts so that you’ll have one on hand “just in case” the original gets twisted or cut when re-assembling the tube. The next time I change the coolant though, I’ll probably replace the gasket. There’s a gasket in the water pump that seals this tube, but I didn’t replace it and it hasn’t leaked. Hold the catch basin close to the water pump area for the first few seconds so that the coolant doesn’t come splashing out all over the floor. The coolant pressure cap should be opened to relieve the pressure and let the coolant flow more freely.īe careful, because the coolant will come out really fast and furious, so make there’s a big catch basin underneath. It’s held on by one bolt at the water pump, and one bolt at the frame (pink arrow). The manual suggests draining the coolant at the water pump (white arrow, Photo 4) drain plug.īut it looked like the joint between the tube coming from the radiator to the water pump was the lowest spot in the cooling system, so I disconnected this tube and drained it from there. This will help prevent fuel from spilling out when you disconnect the fuel line. I suggest that several hours before you’re going to change the coolant, run the bike and shut off the fuel flow while the bike is still running, then run out all of the fuel in the lines and the carburetors. Remove the fuel tank to access the coolant fill tubes and overflow tank. Here are some photos and text to help guide you through the process: See More: Motorcycle Accessories, Motorcycle Tire, Motorcycle HelmetsĬhanging the coolant on the TBird is easier than changing it on other water-cooled bikes that I’ve owned.Įven motorcyclists with minimal mechanical skills can do this. Where to Buy Triumph Coolant Check Reviews & Prices on Amazon Modern Haynes manuals seem to be very well written, with procedures described in a logical and orderly fashion, and have good photos that are directly referenced from the text.Įach chapter is divided into subsections, and the photos are numbered according to the sections, so it’s easy to follow along. I hadn’t used Haynes manuals since way back in the days of the Meriden Triumphs, and back then, they were hard to understand, used convoluted English, and had really crummy photos. The “nakedness” of the bike helps - you don’t have to peel off layers of fairing before you can start the task you set out to do.Īnd the Haynes manual for this bike is for the most part a real gem. Routine maintenance, so far, has been straightforward. It seems that the Thunderbird Sport is turning out to be a pretty easy bike to work on.
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