Great video. I purchased a second hand motor with oil injection and it's difficult to really gauge if it's operating to spec just from the viewing the clear sight hoses running to the carbs, or oil level dropping in the engine mounted oil tank. This test looks to be about as conclusive as you can get. Will give it a try thank you
nice info Tim! I will add Suzuki also has a manifold-type oil injection. Not sure but think they both use the same Mikuni oiling unit. The interesting thing about the Suzuki is it starts to atomize the oil after about 3000rpm, making for a more uniform coverage on the crank. Does the Yamaha also do that?
Could you do some Yamaha HPDI related knowledge videos? I just had a doozy, troubleshooting a #6 cylinder not making power on a 225 HPDI. Had compression, spark, fuel but no boom. Finally found the problem was an incorrect piston installed by the reman facility. They put a starboard piston on the port side. Ran that way for around 150 hours over 9 years until I bought it. I was shocked the ring gaps never snagged on a port. I honed it up, installed new piston and she’s running fantastic now. Craziest thing I ever saw. Was a Major head scratcher. I bought it from a cousin who said the reman engine never did run as good as the original. Now we know why. 😂
I have a Suzuki DT 65 outboard (1987), I was thinking it was injected after the carb.? Does after carb. injection keep the system cleaner? Thanks for the video
yes the Suzuki does. it also atomized the oil into tiny droplets after around 3000 rpm. be sure to replace the filter sensor assembly and follow the simple re-bleed procedure if its been sitting for more than a year or 2!
Having issue with engine tank not filling when low. Only works when using bypass switch. Thinking it’s the float slider assembly, although I snipped the wires, and it has continuity when float is in mid position. So somewhere down the line it’s losing it, I think?
Do you recommend a specific drill RPM, or any RPM is fine as long as you see oil dripping. Do you measure the quantity/rate of oil or just if oil is coming out then youre generally confident its working. I have a 2003 40hp 2 stroke yamaha outboard, oil tank on motor only. Thanks in advance
Generally we don't measure the amount of oil dripping, any RPM is fine. We usually have the drill at max RPM and it's drips about 2-3 drips per second but that's just an estimate.
@@Oexchange I have a 2005 150 2 stroke Yamaha , the smoke seems light and isn’t smoking at all From mid section exhaust have plenty of oil in tank and have pulled some of lines behind carb and oil,seems light especially at idol , how much oil should I be getting at idol and why don’t I have any smoke out of mid section exhaust
I have a Yamaha 200HP HPDI direct injection and every time I speak to the dealer he says I should upgrade by now with 800 hours on the clock. He has me worried but the motor has never missed and beat and has been serviced once a year by a Yamaha dealer since new in 2011. It's a struggle to justify spending money on a 4/stroke. Has anyone got one of these and know how many hours people got out of them, I hear around 1500 to 2500 before rebuild required.
Good Info...thanks. Even thought I own a 2002 Johnson 90hp. Tim knows his trade for sure.
Great video. I purchased a second hand motor with oil injection and it's difficult to really gauge if it's operating to spec just from the viewing the clear sight hoses running to the carbs, or oil level dropping in the engine mounted oil tank. This test looks to be about as conclusive as you can get. Will give it a try thank you
if worried you can test it with your own homemade kit with a graduated clear hose and fitting according to the service manual
nice info Tim! I will add Suzuki also has a manifold-type oil injection. Not sure but think they both use the same Mikuni oiling unit. The interesting thing about the Suzuki is it starts to atomize the oil after about 3000rpm, making for a more uniform coverage on the crank. Does the Yamaha also do that?
Good question! It does not. It dribbles oil into the intake behind the carburetors and relies on the airflow to atomize it.
Could you do some Yamaha HPDI related knowledge videos? I just had a doozy, troubleshooting a #6 cylinder not making power on a 225 HPDI. Had compression, spark, fuel but no boom. Finally found the problem was an incorrect piston installed by the reman facility. They put a starboard piston on the port side. Ran that way for around 150 hours over 9 years until I bought it. I was shocked the ring gaps never snagged on a port. I honed it up, installed new piston and she’s running fantastic now. Craziest thing I ever saw. Was a Major head scratcher. I bought it from a cousin who said the reman engine never did run as good as the original. Now we know why. 😂
We can definitely do that, we love requests. I'm surprised that motor ran for so long with that piston!
@@Oexchangeme too!!!!!
Yep, you're awesome. Exactly what I was looking for
Glad we could help!
I too woukd love to see more on the 3.3l big block 2005 200hpdi vids
Does the oil pump spin at exact crankshaft rpm or is spinning slower?
It's spinning at the same speed. The way the gearing is I don't think it's possible to change the speed. Great question!
I have a Suzuki DT 65 outboard (1987), I was thinking it was injected after the carb.?
Does after carb. injection keep the system cleaner?
Thanks for the video
yes the Suzuki does. it also atomized the oil into tiny droplets after around 3000 rpm. be sure to replace the filter sensor assembly and follow the simple re-bleed procedure if its been sitting for more than a year or 2!
Having issue with engine tank not filling when low. Only works when using bypass switch.
Thinking it’s the float slider assembly, although I snipped the wires, and it has continuity when float is in mid position. So somewhere down the line it’s losing it, I think?
Quite often it's the harness between the motor and the tank on the boat, if not it's the ECU. Let us know if you need any more help.
Great Vid please show how u r connecting drill to pump kind sir
Good idea! We'll be sure to show that in a future video. Thanks for the feedback
Do you recommend a specific drill RPM, or any RPM is fine as long as you see oil dripping. Do you measure the quantity/rate of oil or just if oil is coming out then youre generally confident its working. I have a 2003 40hp 2 stroke yamaha outboard, oil tank on motor only. Thanks in advance
Generally we don't measure the amount of oil dripping, any RPM is fine. We usually have the drill at max RPM and it's drips about 2-3 drips per second but that's just an estimate.
@@Oexchange Ok thats helpful thank you
@@Oexchange I have a 2005 150 2 stroke Yamaha , the smoke seems light and isn’t smoking at all From mid section exhaust have plenty of oil in tank and have pulled some of lines behind carb and oil,seems light especially at idol , how much oil should I be getting at idol and why don’t I have any smoke out of mid section exhaust
I have a Yamaha 200HP HPDI direct injection and every time I speak to the dealer he says I should upgrade by now with 800 hours on the clock. He has me worried but the motor has never missed and beat and has been serviced once a year by a Yamaha dealer since new in 2011. It's a struggle to justify spending money on a 4/stroke. Has anyone got one of these and know how many hours people got out of them, I hear around 1500 to 2500 before rebuild required.
Vvs
So glad I found this video. Do not waste your time = *promosm*.