What you say is correct. Every liquid-cooled engine has this issue, but in my opinion, all the components that make up a reliable engine can withstand temperatures higher than these temperatures.
Γιαννη, First of all, This engine is new. Suzuki has set the temperature for the fan to kick in at 104 C not by chance. If you turn the engine off at 103 and go for a coffee the temperature will rise to 107 C lets say. If Suzuki thought the same they would have set the fan to start at a higher temperature. Suzuki wants the engine to be reliable and that is why they do that. In my opinion the fan should be in a position to draw power in such cases even with the switch to off. That is how it is in todays cars. In the past my father had a car whose radiator fan worked like that (ie only when the switch was on). The result? The radiator hose blew out on a fairly new car. Also, I am not focusing only on the engine but for instance think about the engine oil that in higher temperatures will break faster, but the manual says change it in 6000KM. The oil however might have lost its properties by 3000KM. Last but not least, also think about the rubber hoses, plastics and electronics which are also gonna suffer by this as the engine will take lot more time to naturally dissipate the heat to the environment. The life of these components will also be reduced. Thanks for your comment and ride safe.
Greetings, remember that when turning off the vehicle the water pump also turns off and the water temperature reading increases due to lack of circulation, but it is not that the water temperature increases. But it shows the real one. And when cooling that water we would only be cooling the water in the radiator, that "colder" water would not be reaching the engine, in a given case, receiving some of the air flow provided by the radiator fan at that time, but it will not make much change, in my opinion..
Carlos, just have a look at the 2nd scenario inside the garage. have a look at the temperature reading of the environment. When I did the test outside it was 17 degrees C but inside it instantly jumped to 19 C. So it does make a difference. And since you mentioned it, there is already a burned plastic smell coming from my engine bay and that is why I made this video. Believe me it does make a difference. Also "And when cooling that water we would only be cooling the water in the radiator, that "colder". Actually the heat from the engine will naturally transfer towards the cooler radiator water. This happens due to a combination of thermal conduction, convection, and fluid circulation.
Thank you Carlos and for your comments. By the way I m not focusing only on the engine but also on the components around the engine which are made out of plastic and rubber or the electronics which might also get affected if overheated. Carlos if you own a Vstrom 800 have a smell from the right side just on the back of the engine left and up from the oil opening. If you do let me know if you smell burned plastic once you start the motorcycle.By the way, the 650 does not have any issue with high temperatures as well.
Thanks for the info, very important. I noticed this exact thing yesterday. I'm here in Brazil and is summer, the temperatures outside are crazy hot. Yesterday when I got home the radiator turns on and I let it running for about 3 minutes. From now on I'll always let the radiator do it's thing before taking off the key
Generally, I dont think its a big issue unless you drive in the city traffic in hot summer. Coolant boiling temp is approx. 127C, engine elements are, in my opinion, resistant to cycle heat workload and 108-109 dec C of coolant liquid temperature is nothing damaging. However, I agree that in case of motorcycle fan going after intense ride, its better to keep ignition key on, but mainly to cool metal inside ignition chamber and pistons, they work in temperature of few hundreds C. Kind regards.
Please note I made this video not only based on my thoughts but because I can smell burned plastic on the back side of the engine. Dont forget the oil which at these temperatures will half its life and when suzuki says change it by 6000km it will have lost its properties by 3000kms and on the long run affect the inner parts. Rubber hoses? I ve witnessed them break on a new car in the 90s because that car did not have auto radiator fan starting. Thanks for your comment and ride safe.
@ I defintely appreciate the topic you have raised and, as always, the quality of your material. If I smell plastic at the back of engine, I woul go to service station for check, some cable isolation may be oxydized or hardened. I like new Suzuki 800, had a test ride and enoyed, but personally, I prefer them to fix engine vibrations at 5-6k rev/min and correct all other issues, like the one you pointed with engine cooling,
You are not alone. I have bought my CBR650R from factory and have been doing the same since then. I live in a really hot and humid climate and I believe that this will make a difference in the long run. However, it’s really tough to stand under the 40-degree C summer sunlight next to a burning 4-cylinder engine waiting for the fan to stop pushing hot air onto my legs😂
I usually step aside a bit to avoid the direct heat from the fan but I can’t really leave the outdoor parking lot so I’m still cooking under the sunlight for 5 minutes every morning😅
I read my Vstrom 650 booklet very thoroughly. Suzuki says if the fan is working /even if you plan to stop somewhere/ wait for it to switch off. Also, you can leave the engine on to help this process. Hope it is valid for all liquid cooled bikes.
If my switch is OFF, the fan is not starting. There are 2-3 times I ve noticed that when I switched on again and only then the fan started. Thanks for your comment
I have a floor fan in my garage. In summertime, I put the fan on directing the airflow over the engine when I park. Come back 20 minutes later and turn the fan off.
I don't know much about the water cooled bike since mine is an air/oil cooled Bandit. Check if your bike's fan starting temp can be set through ECU programming. There might be a setting for warmer climates where fan kicks in earlier.
Thanks for your comment but noone almost would be able to do such a technical task.All modern motorcycles Euro 5+ need to work at increased temperatures for emissions and due to that have a potential issue. Perhaps Suzuki will see this video and decide to take action in future upgrades. After all this is a new engine. Ride safe
Hi from Sweden, Ive just found your channel & subbed, I started my own channel last year & it's fun to reach & meet other, I enjoyed the post, many good points of interest Cheers & ride safe 👍
An idea if you want to park inside is to check the temp on the dash. If it is on the 80's the extra 5 or 8 degrees will be ok. If its on the mid 90s then you switch off and wait a min or so to see. In the summer time its a good idea to first leave the moto outside and then move it in the garage.
Now it got me wonder, if the fan is going to kick in, if instead leaving the key in off position, you leave it into parking mode, have you tried that? The 800 has one, but didn't thought to try this on mine (not too much proper weather for raids nowadays)
So useful “food for thought” as the wearing effect could be even faster in some summer situations when you have a lot of stop-n-goes (busy day at city traffic or beautiful road where a man stops often to take pictures). At the same time the 650 kicks in the fan extremely rare. I have no idea if a second fan could be an option (many riders install one in enduro bikes) but there are new bikes like the Africa Twin 1100 that comes with Lithium battery that is crazy expensive to replace. Personally I am curious what would be the situation in this regard with the new DRZ that meets Euro 5+. The old one was switching in the fan quite often during off-road but the new one comes with gigantic manifold because of the emissions.
Thanks so much. Suzuki wants the engine to be reliable and that is why the fan kicks in more often as they also want to balance between reliability and Euro5 +. In my opinion the fan should be in a position to draw power in such cases even with the switch to off. That is how it is in todays cars. The 650 engine is smaller and gets away with it. Indeed there is risk of wear for instance with engine oil that in higher temperatures will break faster, but the manual says change it in 6000KM. The oil however might have lost its properties by 3000KM. Last but not least, the rubber hoses, plastics and electronics are also gonna suffer and the life of these components will also be reduced. Thanks for your comment and ride safe.
@@DrVstrom @DrVstrom Spot on! The most reasonable solution is the fan to continue working after you take the key off the keyhole. After all this is with the cars for 20-25 years already,. Maybe then a bigger battery would be required (not a problem for the road version but it will add even more weight to the 800DE). BTW, there is another short video on RUclips from a guy "modifying" the right-hand-side radiator of the 800DE with a simple rubber/plastic plank like the one on the left side preventing the heat from the radiator to reach the left leg. According to him this works with the heat deflection from the right leg but still the bigger problem would be the long-term wear and tear that you describe.
Thank you @lyubengeorgiev1751, Yes that would be a solution. I do tend to charge the battery a bit more regularly and it will still be fine. For the heat deflection, I saw that video but dont think its something I would do at the moment. Thanks very much for your comments.
je ne comprend pas trop l'intérêt de la vidéo bien que votre consta est exacte oui le moteur prend entre 5 et 8 degré après arrêt selon sont environnement mais je ne pas vois qu'elle problème cella pourrais occasionné ??
The problem is that the excess heat causes the plastics, the rubber hoses, the electronics and the oil in the engine to deteriorate with time. Me engine at a certain location smells burned plastic. If you have a Vstrom 800 take a look for that smell.
Yes and no. I say euro 5 plus. But yes maybe some get away with it but tne video focuses on the actions needed for the ones that dont. Thanks for your comment.
What you say is correct. Every liquid-cooled engine has this issue, but in my opinion, all the components that make up a reliable engine can withstand temperatures higher than these temperatures.
Γιαννη, First of all, This engine is new. Suzuki has set the temperature for the fan to kick in at 104 C not by chance. If you turn the engine off at 103 and go for a coffee the temperature will rise to 107 C lets say. If Suzuki thought the same they would have set the fan to start at a higher temperature. Suzuki wants the engine to be reliable and that is why they do that. In my opinion the fan should be in a position to draw power in such cases even with the switch to off. That is how it is in todays cars. In the past my father had a car whose radiator fan worked like that (ie only when the switch was on). The result? The radiator hose blew out on a fairly new car. Also, I am not focusing only on the engine but for instance think about the engine oil that in higher temperatures will break faster, but the manual says change it in 6000KM. The oil however might have lost its properties by 3000KM. Last but not least, also think about the rubber hoses, plastics and electronics which are also gonna suffer by this as the engine will take lot more time to naturally dissipate the heat to the environment. The life of these components will also be reduced. Thanks for your comment and ride safe.
Greetings, remember that when turning off the vehicle the water pump also turns off and the water temperature reading increases due to lack of circulation, but it is not that the water temperature increases. But it shows the real one. And when cooling that water we would only be cooling the water in the radiator, that "colder" water would not be reaching the engine, in a given case, receiving some of the air flow provided by the radiator fan at that time, but it will not make much change, in my opinion..
Carlos, just have a look at the 2nd scenario inside the garage. have a look at the temperature reading of the environment. When I did the test outside it was 17 degrees C but inside it instantly jumped to 19 C. So it does make a difference. And since you mentioned it, there is already a burned plastic smell coming from my engine bay and that is why I made this video. Believe me it does make a difference. Also "And when cooling that water we would only be cooling the water in the radiator, that "colder". Actually the heat from the engine will naturally transfer towards the cooler radiator water. This happens due to a combination of thermal conduction, convection, and fluid circulation.
@@DrVstrom You're right, water being everywhere in the engine will transfer that temperature. I hadn't thought of it that way. Great recommendation!
Thank you Carlos and for your comments. By the way I m not focusing only on the engine but also on the components around the engine which are made out of plastic and rubber or the electronics which might also get affected if overheated. Carlos if you own a Vstrom 800 have a smell from the right side just on the back of the engine left and up from the oil opening. If you do let me know if you smell burned plastic once you start the motorcycle.By the way, the 650 does not have any issue with high temperatures as well.
Same Problem with my SV650. Fan does Not work if Switched off. My Triumph let Fan run even if IT is Switches off
Thank you for sharing that.
Hallo friend.
Dankjewel voor deze waardevolle tip.
Thank you :)
Thanks for the info, very important.
I noticed this exact thing yesterday. I'm here in Brazil and is summer, the temperatures outside are crazy hot.
Yesterday when I got home the radiator turns on and I let it running for about 3 minutes.
From now on I'll always let the radiator do it's thing before taking off the key
Great :) thanks a lot for your comment. Ride safe
Generally, I dont think its a big issue unless you drive in the city traffic in hot summer. Coolant boiling temp is approx. 127C, engine elements are, in my opinion, resistant to cycle heat workload and 108-109 dec C of coolant liquid temperature is nothing damaging. However, I agree that in case of motorcycle fan going after intense ride, its better to keep ignition key on, but mainly to cool metal inside ignition chamber and pistons, they work in temperature of few hundreds C. Kind regards.
Please note I made this video not only based on my thoughts but because I can smell burned plastic on the back side of the engine. Dont forget the oil which at these temperatures will half its life and when suzuki says change it by 6000km it will have lost its properties by 3000kms and on the long run affect the inner parts. Rubber hoses? I ve witnessed them break on a new car in the 90s because that car did not have auto radiator fan starting. Thanks for your comment and ride safe.
@ I defintely appreciate the topic you have raised and, as always, the quality of your material. If I smell plastic at the back of engine, I woul go to service station for check, some cable isolation may be oxydized or hardened. I like new Suzuki 800, had a test ride and enoyed, but personally, I prefer them to fix engine vibrations at 5-6k rev/min and correct all other issues, like the one you pointed with engine cooling,
Everything is under control. I love this bike. Ride safe
You are not alone. I have bought my CBR650R from factory and have been doing the same since then. I live in a really hot and humid climate and I believe that this will make a difference in the long run.
However, it’s really tough to stand under the 40-degree C summer sunlight next to a burning 4-cylinder engine waiting for the fan to stop pushing hot air onto my legs😂
Thanks for the comment :) . You can step aside leaving the key to on or the engine working until temp drops.
I usually step aside a bit to avoid the direct heat from the fan but I can’t really leave the outdoor parking lot so I’m still cooking under the sunlight for 5 minutes every morning😅
Hehehe I feel you then 😂
I read my Vstrom 650 booklet very thoroughly. Suzuki says if the fan is working /even if you plan to stop somewhere/ wait for it to switch off. Also, you can leave the engine on to help this process. Hope it is valid for all liquid cooled bikes.
If my switch is OFF, the fan is not starting. There are 2-3 times I ve noticed that when I switched on again and only then the fan started. Thanks for your comment
I have a floor fan in my garage. In summertime, I put the fan on directing the airflow over the engine when I park. Come back 20 minutes later and turn the fan off.
That also works, Thanks for sharing
I don't know much about the water cooled bike since mine is an air/oil cooled Bandit. Check if your bike's fan starting temp can be set through ECU programming. There might be a setting for warmer climates where fan kicks in earlier.
Thanks for your comment but noone almost would be able to do such a technical task.All modern motorcycles Euro 5+ need to work at increased temperatures for emissions and due to that have a potential issue. Perhaps Suzuki will see this video and decide to take action in future upgrades. After all this is a new engine. Ride safe
Hi from Sweden, Ive just found your channel & subbed, I started my own channel last year & it's fun to reach & meet other, I enjoyed the post, many good points of interest
Cheers & ride safe 👍
Thanks for your comment :). Nice channel. I subbed as well. Ride safe.
@DrVstrom Well, thank you, good sir. That's very appreciated 👏, Here's to safe riding for 2025
Sounds like having a floor fan in the garage with a timer would be a good idea.
An idea if you want to park inside is to check the temp on the dash. If it is on the 80's the extra 5 or 8 degrees will be ok. If its on the mid 90s then you switch off and wait a min or so to see. In the summer time its a good idea to first leave the moto outside and then move it in the garage.
Now it got me wonder, if the fan is going to kick in, if instead leaving the key in off position, you leave it into parking mode, have you tried that? The 800 has one, but didn't thought to try this on mine (not too much proper weather for raids nowadays)
Hello, no I have not tried that but great thinking. Thanks so much for your active comment. Ride safe
@@DrVstrom thank you too for all the great work and guides here. And shared expirience :) Really appreciated
Thanks :)
So useful “food for thought” as the wearing effect could be even faster in some summer situations when you have a lot of stop-n-goes (busy day at city traffic or beautiful road where a man stops often to take pictures). At the same time the 650 kicks in the fan extremely rare.
I have no idea if a second fan could be an option (many riders install one in enduro bikes) but there are new bikes like the Africa Twin 1100 that comes with Lithium battery that is crazy expensive to replace.
Personally I am curious what would be the situation in this regard with the new DRZ that meets Euro 5+. The old one was switching in the fan quite often during off-road but the new one comes with gigantic manifold because of the emissions.
Thanks so much. Suzuki wants the engine to be reliable and that is why the fan kicks in more often as they also want to balance between reliability and Euro5 +. In my opinion the fan should be in a position to draw power in such cases even with the switch to off. That is how it is in todays cars. The 650 engine is smaller and gets away with it. Indeed there is risk of wear for instance with engine oil that in higher temperatures will break faster, but the manual says change it in 6000KM. The oil however might have lost its properties by 3000KM. Last but not least, the rubber hoses, plastics and electronics are also gonna suffer and the life of these components will also be reduced. Thanks for your comment and ride safe.
@@DrVstrom @DrVstrom Spot on! The most reasonable solution is the fan to continue working after you take the key off the keyhole. After all this is with the cars for 20-25 years already,. Maybe then a bigger battery would be required (not a problem for the road version but it will add even more weight to the 800DE).
BTW, there is another short video on RUclips from a guy "modifying" the right-hand-side radiator of the 800DE with a simple rubber/plastic plank like the one on the left side preventing the heat from the radiator to reach the left leg. According to him this works with the heat deflection from the right leg but still the bigger problem would be the long-term wear and tear that you describe.
Thank you @lyubengeorgiev1751, Yes that would be a solution. I do tend to charge the battery a bit more regularly and it will still be fine. For the heat deflection, I saw that video but dont think its something I would do at the moment. Thanks very much for your comments.
I think they will increase radiator area or fan flow rate in DRZ 4S
je ne comprend pas trop l'intérêt de la vidéo bien que votre consta est exacte oui le moteur prend entre 5 et 8 degré après arrêt selon sont environnement mais je ne pas vois qu'elle problème cella pourrais occasionné ??
The problem is that the excess heat causes the plastics, the rubber hoses, the electronics and the oil in the engine to deteriorate with time. Me engine at a certain location smells burned plastic. If you have a Vstrom 800 take a look for that smell.
Do you miss your 650 ?
It was a great bike and yes. But this one also is.
Not all euro 5 models
But the most of them
Transalp 750 has none engine heat
Yes and no. I say euro 5 plus. But yes maybe some get away with it but tne video focuses on the actions needed for the ones that dont. Thanks for your comment.