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conversion ratio oil to gas
- Thread starter Angel51
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40:1 I believe,,
That said, I would not get rid of the oil injection. Very rare for the system to fail. The lines get old and brittle with age, so they should be replaced. If it were mine, stay injected..
That said, I would not get rid of the oil injection. Very rare for the system to fail. The lines get old and brittle with age, so they should be replaced. If it were mine, stay injected..
Spimothy Leary
Well-Known Member
I agree with CJ, reliable, but I premixed all 3 seadoo's I owned anyway, (old yamaha habits are hard to break I guess)
40 ish... I used to run about 40 ballpark, meaning that if I ended up adding an extra half gallon of gas I didn't worry about throwing in an oz of oil.
my favorite premix "tool" was the mixing container from west marine. $7.
had a nice sealing lid, held enough oil for 10 (12?) gallons of fuel, so perfect to bring along in case you need to top off at a marina.
ps I have a 787 blockoff kit for $13 shipped if you need one.
40 ish... I used to run about 40 ballpark, meaning that if I ended up adding an extra half gallon of gas I didn't worry about throwing in an oz of oil.
my favorite premix "tool" was the mixing container from west marine. $7.
had a nice sealing lid, held enough oil for 10 (12?) gallons of fuel, so perfect to bring along in case you need to top off at a marina.
ps I have a 787 blockoff kit for $13 shipped if you need one.
Thank you I have a oil leak and was thinking of that as a option
Spimothy Leary
Well-Known Member
if you have a leak there are two likely sources.
the grommet is leaking (most likely)
the tank has a crack (less likely)
my guess is grommet if you get down there with a flashlight you can usually locate a buildup of black gunk right near there which is an indicator.
They run about $12-15 on ebay.
depending on your model, it would look similar to this, the black part is the issue, they fail over time.
dbechth
Member
You mentioned an oil leak... Don't forget that you need to keep your rotary valve gear lubricated. You will still need to keep some oil in the injection tank, so unless the leak is actually in the oil pump section going to premix wont help. Spimothy Leary is right to check the tank grommet. I had a similar issue a few years ago and fixed it with a new grommet.
Spimothy Leary
Well-Known Member
and yes, since you need to lubricate the gear anyway, you'd have to either
a) repair the leak
b) loop the line and check/fill it semi-often. (very rare if your crank seals don't leak)
either way, the grommet should be inspected, since it fails pretty often after 15-20 yrs... the seamed tanked crack now and then but the fail rate isn't as frequent as the grommet.
you can also find seamless tanks for many models if that's the issue.
a) repair the leak
b) loop the line and check/fill it semi-often. (very rare if your crank seals don't leak)
either way, the grommet should be inspected, since it fails pretty often after 15-20 yrs... the seamed tanked crack now and then but the fail rate isn't as frequent as the grommet.
you can also find seamless tanks for many models if that's the issue.
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