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2021 Wet Head Problem

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  #21  
Old 05-10-2023 | 09:02 PM
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Not really trying to fix it. Just put it together and get some distilled water in it so the pump isn’t running dry on the way to the dealer. If I can sneak a hose clamp on it and get it tightened down i will.
 
  #22  
Old 05-11-2023 | 07:55 AM
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Heres a big if..... If the bike is going to go to the dealer for any sort of repair, doing a home repair (even a perfect, proper one) these idiots will no doubt say this was your fault...
 
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  #23  
Old 05-11-2023 | 09:40 PM
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I took pictures (the ones I posted here). The more I think about it, I hate the thought of running the water pump for an hour with no fluid in it. Has to be really hard on the pump. I think I am going to try to get that cinch clamp off and get a hose clamp on it. If they throw a fit about it, I’ll deal with it then.
LS Bob kind of got me wondering about how or why it happened when he said his problem was the cap. I think it blew out of the hose after it was parked. No anti-freeze on my boot or pants leg. Nothing blown down the side of the bike. Would think that if it had happened while I was riding, it would have splattered all down the side of the bike. I parked in the shop on Saturday night and came right in the house because we had company, went out Sunday and noticed the puddle on the floor. Kind of strange that it failed when it was cooling off. Probably doesn’t make a bit of difference, just kind of weird.
 
  #24  
Old 05-14-2023 | 10:58 AM
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Originally Posted by Spook13
I took pictures (the ones I posted here). The more I think about it, I hate the thought of running the water pump for an hour with no fluid in it. Has to be really hard on the pump. I think I am going to try to get that cinch clamp off and get a hose clamp on it. If they throw a fit about it, I’ll deal with it then.
LS Bob kind of got me wondering about how or why it happened when he said his problem was the cap. I think it blew out of the hose after it was parked. No anti-freeze on my boot or pants leg. Nothing blown down the side of the bike. Would think that if it had happened while I was riding, it would have splattered all down the side of the bike. I parked in the shop on Saturday night and came right in the house because we had company, went out Sunday and noticed the puddle on the floor. Kind of strange that it failed when it was cooling off. Probably doesn’t make a bit of difference, just kind of weird.
After you shut it down residual heat built up just enough pressure to leak at the loose clamp area before it cooled down.
 
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  #25  
Old 05-14-2023 | 04:06 PM
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Originally Posted by TriGeezer
The wet heads are for rider comfort, and do not reduce engine temperature. Riding with no coolant will not hurt the motor. But, I’d be concerned with hurting the water pump running it low on fluid. Call your dealer and ask them what to do. Most decent dealers will tow for warranty work. Don’t attempt a repair that could void your warranty.
This is a really common misconception. The wet heads reduce exhaust valve and cylinder head temperature enough to reduce detonation. This allows them to run a higher compression ratio and keep more timing in the engine at higher temperatures. Stock wet heads will make more power and run cleaner and allow the full engine power over a broader temperature range.

You can run them without coolant and not overheat them but the knock sensors will be pulling timing like crazy on a hot day and your power and fuel economy will suffer. As for whether or not it will hurt the electric water pump, I guess theoretically running it dry could overheat it and burn it out prematurely but I can't say for sure. I don't like running pumps dry. You can usually hear the anger in the pump. Lol
 
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  #26  
Old 05-14-2023 | 04:37 PM
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Originally Posted by LazySundays
You can run them without coolant and not overheat them
My biggest concern is that there are now empty channels cut around the hottest part of the heads with no coolant in them - compounded by the already higher compression, now we have less thermal conductivity away from that area.
 
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  #27  
Old 05-14-2023 | 07:40 PM
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Originally Posted by LazySundays
This is a really common misconception. The wet heads reduce exhaust valve and cylinder head temperature enough to reduce detonation. This allows them to run a higher compression ratio and keep more timing in the engine at higher temperatures. Stock wet heads will make more power and run cleaner and allow the full engine power over a broader temperature range.

You can run them without coolant and not overheat them but the knock sensors will be pulling timing like crazy on a hot day and your power and fuel economy will suffer. As for whether or not it will hurt the electric water pump, I guess theoretically running it dry could overheat it and burn it out prematurely but I can't say for sure. I don't like running pumps dry. You can usually hear the anger in the pump. Lol
My experience with pumps has shown that running a pump dry will first affect the seals, allowing them to leak. Also, the impellers will wear out quickly and greatly reduce pumping capacity.
 
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  #28  
Old 05-14-2023 | 08:55 PM
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Got the cinch clamp cut off


I will grab a hose clamp from work tomorrow and then see about getting it filled with distilled water and the air bled. Didn’t have to tear the lower apart and pump will at least be running in liquid for the trip to Dubuque. I agree with you hvacgaspiping, has to be hard on the pump, and it might take a while before pump problems show up. Think i will take it over Wednesday, hopefully the parts will be in this week.
 
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  #29  
Old 05-17-2023 | 07:54 PM
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Took the bike in today. Service manager didn’t complain at all when I told him I fixed it with a hose clamp. He says that the I.D. is too big on the original hose. He doesn’t think even with the worm gear clamp that it would stay tight. He talked like it was a common problem. Kind of surprised they didn’t have a recall on it. They are going to do the brake light programming fix while it is in also.
Thanks for the advice from everybody. Hopefully this will be the biggest problem I have with this bike! 😀
 
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  #30  
Old 05-17-2023 | 08:46 PM
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What is the fix for this ? New hose and clamps ? I much prefer the spring type clamps and used them in every location when i changed out my waterpump to the new style pump.
 


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