Leaking oil

[Ptol672018]

Hi, excuse my previous mail but my phone translated back to Swedish.
Have you already received advice from you about my two-stroke system, I have now bought a kit for Boats.net with a new pump and everything that I have now assembled and it was not the easiest but now the new Mikuni pump is in place . Does it matter how I place the tubes for each cylinder? Then it is at the back of the instruction that came with the pump kit that for adjusting the pump see the service manual, anyone can help me how to set the new pump so I am very grateful. (Yamaha 175 hp 1986 is my engine from)

with kind regards

[panasonic]

Hej, köpte nya delar hos er och har nu monterat in ny pump en mikuni på min gamla 175hk 1986 modell men nu är min fråga, alla slangar håller rätt längd som var med i satsen? Hur justerar jag den nya pumpen så motorn får rätt mängd olja? Har någon en service manual där det står Hur man gör?

Translation:

Hi, bought new parts from you and have now installed a new pump one micuni on my old 175hp 1986 model but now my question is, all hoses keep the right length that was in the kit? How do I adjust the new pump so that the engine gets the right amount of oil? Does anyone have a service manual that says How to do?

[TownsendsFJR1300]

Exactly....

[Ptol672018]

Hej, köpte nya delar hos er och har nu monterat in ny pump en mikuni på min gamla 175hk 1986 modell men nu är min fråga, alla slangar håller rätt längd som var med i satsen? Hur justerar jag den nya pumpen så motorn får rätt mängd olja? Har någon en service manual där det står Hur man gör?

[99yam40]

I meant that it would have to be rebuilt for a mikuni pump to fit.
Saw another post a week ago that had the same problem as me that oil is drained through the carburettors and what I understood then he would change the pump. According to the tips I have received on the forum, it has been talked about check valves, I do not really know how to do it, because it is unnecessary to replace the pump if not needed.
Rodbolt17 do you think it works if I replace only the check valves with the latest model?

from what he wrote, all you have to do is remove the old check valves and install new ones in the oil lines. probably need to replace the oil lines and figure out the proper routing.
problem is how do you remove the old ones in the oil pump.

I would go with new oil pump and get everything new.
hope the kit comes with instructions on oil line routing

[pstephens46]

I meant that it would have to be rebuilt for a mikuni pump to fit.
Saw another post a week ago that had the same problem as me that oil is drained through the carburettors and what I understood then he would change the pump. According to the tips I have received on the forum, it has been talked about check valves, I do not really know how to do it, because it is unnecessary to replace the pump if not needed.
Rodbolt17 do you think it works if I replace only the check valves with the latest model?

What would have to be rebuilt?

[Ptol672018]

I meant that it would have to be rebuilt for a mikuni pump to fit.
Saw another post a week ago that had the same problem as me that oil is drained through the carburettors and what I understood then he would change the pump. According to the tips I have received on the forum, it has been talked about check valves, I do not really know how to do it, because it is unnecessary to replace the pump if not needed.
Rodbolt17 do you think it works if I replace only the check valves with the latest model?

[boscoe99]

https://www.boats.net/product/yamaha/6G5-13200-00-00

[boscoe99]

I only know that I want to trust the system so that the pump is holding. So you do not get all the oil that flows out of the carburettor. Is it difficult to mount a new Mikuni pump? Do you need a conversion rate?

What do you mean by "conversion rate"?

[boscoe99]

It is Keihin.

[rodbolt17]

you buy the kit and a SM for your v6 only above a 1991 model.
actually all you need is the late style oil line routing diagram.

[Ptol672018]

I only know that I want to trust the system so that the pump is holding. So you do not get all the oil that flows out of the carburettor. Is it difficult to mount a new Mikuni pump? Do you need a conversion rate?

[rodbolt17]

about 1990 Yamaha changed from a pump made by kien with internal check valves to a pump made by mikuni with external check valves.

[Ptol672018]

Thank you for all the tips, but if I understand you right, it's not a Mikuni pump orginal mounted but it's called Kien, but even if a new pump is expensive, maybe I'll invest in buying one with new hoses, what do you think? The pump is called 6G5-13200 something, but it is worth checking out what it's called.

Thank you in advance for your reply

[rodbolt17]

myself?
I would remove the check valves from the old kien pump.
then I would cut in 6 inline late style check valves.
then I would go play.
but that is just me.