Small oil leak - water pump tube

Jlq1969

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A new seal….seals…..if it doesn't seal at first, it will never seal, (not that they settle with the miles until they seal completely)

3D4EDFA1-410C-4E5D-97CF-C63509639039.jpeg
967B4608-7726-4FAC-A340-1513ED5EB9E9.jpeg
 

sandro1973

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A new seal….seals…..if it doesn't seal at first, it will never seal, (not that they settle with the miles until they seal completely)

View attachment 102198
View attachment 102199
A new seal….seals…..if it doesn't seal at first, it will never seal, (not that they settle with the miles until they seal completely)

View attachment 102198
View attachment 102199
I have the same feeling....it shouldn't leak, not after replacing the entire pump.

I need to have this checked by the shop, if someone can point / show where this crankcase breather hose is located...it could help.

Anyway, do you suggest if this other hose is somehow blocked, it could cause the leak ? ( path of least resistance thing ? )
 

Jlq1969

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I have the same feeling....it shouldn't leak, not after replacing the entire pump.

I need to have this checked by the shop, if someone can point / show where this crankcase breather hose is located...it could help.

Anyway, do you suggest if this other hose is somehow blocked, it could cause the leak ? ( path of least resistance thing ? )
In the crankcase, there is positive pressure, which is vented to the filter box. the hose is between the valve cover and the filter box…it is seen from the left side or from the left front…it has a couple of curves…but you have to make sure that these curves are smooth…that the curves are not closed….
 

sandro1973

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In the crankcase, there is positive pressure, which is vented to the filter box. the hose is between the valve cover and the filter box…it is seen from the left side or from the left front…it has a couple of curves…but you have to make sure that these curves are smooth…that the curves are not closed….

I thought this below could be related to it...looks full of oil and i know it's connected to the bottom of the airbox.

I'll have to try and check it, but most likely, it'll get done by the shop since i suppose it'll envolve removing the tank and other stuff to get there.

20230604_192349.jpg
 

Jlq1969

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I thought this below could be related to it...looks full of oil and i know it's connected to the bottom of the airbox.

I'll have to try and check it, but most likely, it'll get done by the shop since i suppose it'll envolve removing the tank and other stuff to get there.

View attachment 102225
looking at that visor,(in your pic) you probably have to uncover the filter box and clean the oil in the base
number 4 the hose is further back and more to the middle of the air box
7E0CC769-5D06-41BC-87BF-09335C8BF792.jpeg
 

Boris

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I thought this below could be related to it...looks full of oil and i know it's connected to the bottom of the airbox.

I'll have to try and check it, but most likely, it'll get done by the shop since i suppose it'll envolve removing the tank and other stuff to get there.

View attachment 102225
On my bike I can reach that with long nose pliers. Stick a paper towel under it and pop it off. Mine has previously had oil in it, but never full up. Appears to be a lot of oily residue around that area.
 

sandro1973

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looking at that visor,(in your pic) you probably have to uncover the filter box and clean the oil in the base
number 4 the hose is further back and more to the middle of the air box
View attachment 102228
Thanks ! ;-) I can see a pipe coming from the top of the valve cover, curving inwards, under the airbox. And as far as i can see, it doesn't look pinched. Don't know if it's the right one to look at...

Anyway, in about 1.800 miles i'm taking the bike to the shop and i'll wait until then.


( the metal pipe, on top of the valve cover, seems to be the place where i see the rubber pipe attached )

s-l500.jpg
 
Last edited:

racerxpunk2

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Oct 9, 2020
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Virginia
Regarding water pump replacement, i plan on putting in a new water pump assembly, is there any parts that should be ordered along with the pump or does everything come with it that should be replaced at time of water pump replacement. Looking at the parts diagram on partzilla.com i have the pump assembly, there is also #20 and 21 that is a pipe and seal between pump and engine case and was wondering if thats worthwhile replacing
 

scollanm

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Chula Vista, CA
I have a 2023 Yamaha Super Tenere, brought it in for its 4,000 mile service and they found the same oil leak problem with the water pump. Under warranty so being replaced. Hopefully Yamaha is looking into this.
 

Jlq1969

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I have a 2023 Yamaha Super Tenere, brought it in for its 4,000 mile service and they found the same oil leak problem with the water pump. Under warranty so being replaced. Hopefully Yamaha is looking into this.
The problem with oil leakage is that the oil seal is in place so that water does not enter the oil (in case the water seal breaks (8) )
Look at how that oil seal (7) is placed and you will see that it is facing away from the oil.
IMG_6824.jpeg
 
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