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Discussion Starter · #1 · (Edited)
Hi Guys,
I live in United States (East Coast) and I recently purchased the 2021 black beauty CB1000R and it was delivered last Wednesday, it has 6 miles on it.
I want to ask a quick question what is the standard temperature range when this beauty is just in idle mode, mean just start and parked. Please keep in mind in US unit of measure is Fahrenheit.
Other day I started it and once temp hit 154F I start revving up and temp went to 218F and fan kicked in. After that I turned it off, but wondering what is optimal temperature for a fully warmed up bike and is it normal fan kicking in at 218F.
Looking forward hearing experts and masters words...
Thank you in advance...
 

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2019 CB1000R
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● Between 251°F to 268°F (122°C and 131°C):
  • High coolant temperature indicator lights.
  • Coolant temperature digits flash.
Even if the engine coolant temperature is
low, the cooling fan may start running when
you rev up the engine. This is normal.

I'm in Houston. After I start my bikes, I put on my helmet and gloves. By the time that's done the water temp is over 100F. That's good enough for me to put it in gear and ride.
Depending on the ambient temperature, coolant is around 180F at highway speeds.
 

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There's other threads about this. When running down the road and getting optimal cooling, mine sits at 172f.

Water boils at 212 if I remember right. If you use antifreeze, then the boiling point is higher.

An engine's cooling system is slightly pressurized so water will actually boil a bit higher than 212.

I've seen 238 riding through Death Valley (ambient temperature was 122f) and similar temp sitting at traffic lights when the temperature was 110f.

My bike has never boiled atthrse temperatures.

If you sit and rev the engineat a standstill it may eventually overheat because it's not meant to run mike that. But I wouldn't worry about overheating otherwise.
 

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Discussion Starter · #4 ·
● Between 251°F to 268°F (122°C and 131°C):
  • High coolant temperature indicator lights.
  • Coolant temperature digits flash.
Even if the engine coolant temperature is
low, the cooling fan may start running when
you rev up the engine. This is normal.

I'm in Houston. After I start my bikes, I put on my helmet and gloves. By the time that's done the water temp is over 100F. That's good enough for me to put it in gear and ride.
Depending on the ambient temperature, coolant is around 180F at highway speeds.
Thank you very much for the information.
 

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Discussion Starter · #5 ·
There's other threads about this. When running down the road and getting optimal cooling, mine sits at 172f.

Water boils at 212 if I remember right. If you use antifreeze, then the boiling point is higher.

An engine's cooling system is slightly pressurized so water will actually boil a bit higher than 212.

I've seen 238 riding through Death Valley (ambient temperature was 122f) and similar temp sitting at traffic lights when the temperature was 110f.

My bike has never boiled atthrse temperatures.

If you sit and rev the engineat a standstill it may eventually overheat because it's not meant to run mike that. But I wouldn't worry about overheating otherwise.
Thanks, for the valuable information...
 

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Discussion Starter · #6 ·
Thank you very much for the information.
● Between 251°F to 268°F (122°C and 131°C):
  • High coolant temperature indicator lights.
  • Coolant temperature digits flash.
Even if the engine coolant temperature is
low, the cooling fan may start running when
you rev up the engine. This is normal.

I'm in Houston. After I start my bikes, I put on my helmet and gloves. By the time that's done the water temp is over 100F. That's good enough for me to put it in gear and ride.
Depending on the ambient temperature, coolant is around 180F at highway speeds.
Can you also let me know where can I find Radiator cap on the Radiator, its not on the plain sight :)
 

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2019 CB1000R
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Can you also let me know where can I find Radiator cap on the Radiator, its not on the plain sight :)
Check the coolant level in the reserve tank
while the engine is cold.
1. Place your vehicle on a firm, level surface.
2. Hold your vehicle in an upright position.
3. Check that the coolant level is between
the UPPER level and LOWER level marks
on the reserve tank.
If the coolant level is dropping noticeably or
the reserve tank is empty, you likely have a
serious leak. Have your vehicle inspected by
your dealer.
If the coolant level is below the LOWER level
mark, add the recommended coolant
(2 P. 107) until the level reaches the UPPER
level mark.
Add fluid only from the reserve tank cap and
do not remove the radiator cap.

 

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Discussion Starter · #8 ·
Check the coolant level in the reserve tank
while the engine is cold.
1. Place your vehicle on a firm, level surface.
2. Hold your vehicle in an upright position.
3. Check that the coolant level is between
the UPPER level and LOWER level marks
on the reserve tank.
If the coolant level is dropping noticeably or
the reserve tank is empty, you likely have a
serious leak. Have your vehicle inspected by
your dealer.
If the coolant level is below the LOWER level
mark, add the recommended coolant
(2 P. 107) until the level reaches the UPPER
level mark.
Add fluid only from the reserve tank cap and
do not remove the radiator cap.

Once again thanks a bunch..
 

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Hi Guys,
I live in United States (East Coast) and I recently purchased the 2021 black beauty CB1000R and it was delivered last Wednesday, it has 6 miles on it.
I want to ask a quick question what is the standard temperature range when this beauty is just in idle mode, mean just start and parked. Please keep in mind in US unit of measure is Fahrenheit.
Other day I started it and once temp hit 154F I start revving up and temp went to 218F and fan kicked in. After that I turned it off, but wondering what is optimal temperature for a fully warmed up bike and is it normal fan kicking in at 218F.
Looking forward hearing experts and masters words...
Thank you in advance...
that's a little higher than when mine kicks in 208F
 

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Discussion Starter · #14 ·
Scottbapilot, thanks you very much...It was driving me crazy, but eventually I was able to locate it :). I appreciate your feedback (y)
 
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