Yamaha YZF-R15 is a liquid cooled engine based high performance motorcycle. The engine bay is housed inside the fearing thus it allows very little air flow and the engine relays on a radiator based liquid cooling system to cool itself.
Heart of this system is radiator and blood of the system is the coolant or liquid which circulates through the channels made just outside of the cylinder wall to absorb the heat and comes back to radiator to cool down and repeat the cycle over and over again to keep the engine cooled and at optimum operational temperature.
How often does the Coolant or radiator fluid of Yamaha YZF R15 needs to be changed ?
Here at NexGenBikes.com, we always suggest users to refer to their owners manual. As that is the best possible place to obtain more information about your bike.
In idle testing conditions, Yamaha YZF-R15 owners manual service schedule recommends you to change the coolant once a two year, regardless of how many kms you clock. It also recommends you to check the coolant level in R15 radiator and coolant reservoir once every 3000 kms and top up the coolant fluid if level drops.
However, we have found in harsh Indian summer condition, practically one should change the Yamaha R15 V1 /V2 coolant or radiator fluid once a year (do it at the beginning of the summer times) or once every 15000 kilo meter. Which ever is earlier. Cooler engine helps in many ways,
- A cooler engine will reduce its wear and tear
- Less wear and tear means more engine life
- Ride quality would also increase in summer time as the bike will feel a lot smooth
- Over heated engine will result in reduce of performance.
Which coolant or radiator fluid to be used with Yamaha R15 V1 or V2 ?
Yamaha recommended Motul MotoCool and we would also agree to that choice.
How much or what is the total quantity of coolant needed for Yamaha R15 ?
As per the workshop manual of Yamaha R15, following are capacity of coolant held in the bike.
Radiator Capacity -> 600 ml
Coolant Reservoir Capacity -> 250 ml
Total Coolant needed for replacement -> At least 850 ml
What or how much is the price of Yamaha R15 coolant replacement ?
The Motul MotoCool 1L (1000 ml) bottle is priced Rs. 395/-
How to replace / coolant replacement process in Yamaha R15 ?
First open up the visor of both side.
Then drain the coolant from radiator of R15.
Drain the coolant storage reservoir.
Once both the radiator and reservoir is drained, now first refill the coolant reservoir upto its full mark or with 600 ml of coolant from the bottle and radiator with 250 ml or till it is also full. Dont forget to put the radiator coolant drain nut back before refilling the radiator.
Where to carry out the Yamaha R15 coolant replacement process and how much it would cost ?
Usually, best place to work is the authorized service center but many users may not have the chance to visit there for many reasons or in service centers, which are in lot of work pressure may chose to skip the process by just carrying out a normal top up saying its not needed.
However in those cases, you may follow the guide given to carry out the process from any trusted local mechanic.
In our case, the local mechanic charged us Rs. 100 for the manual labor as we administrated and supervised the entire process.
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