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Random Quote: A home on land; You save up for one half of your life, only to find out once you get one that it's in the wrong neighborhood!
You gotta be kidding. You don't know many Asians, do ya. Filipinos start swapping engines on motor scooters and siphoning gasoline from US military vehicles while they are still in diapers. Besides, I will show them an invention of mine. You don't ever get gasoline in your mouth using the Gringo method of siphoning, because you pressurize the tank instead of creating a suction on the hose. Simple, but safe and effective. About forty years of siphoning gasoline without one single drop ingested or one molecule inhaled, in my case.
You gotta be kidding. You don't know many Asians, do ya. Filipinos start swapping engines on motor scooters and siphoning gasoline from US military vehicles while they are still in diapers.
Wow, You sure like to paint with a broad brush... Do you type while wearing that sheet or only wear it at the meetings...
On the subject of your outboard, it sounds like your working out your problems, good for you.
__________________ "I'm suing the THT and the guy that made it."
Won't work. I don't HAVE to act like my thinking is all politically correct according to the latest polls and memo from the boss. I can be honest.
But if we ever need someone with a badge to come in and start enforcing the USA's latest Politically Correct doctrine upon us in the area of outboard motor repair, we'll be sure to contact you.
A shame you couldn't have gotten a stick on old Imus for that outrageousness HE dared to utter, eh?
Didn't you just get this boat a few months back? Wasn't the tank drained prior to shipping? If so, there can't be much crud in it & the boat was running fine before this and runs the same on fresh gas with the aux tank. Sounds more like a diode, solenoid or something else electronic or electrical that heats up & breaks down, then cools down overnight & runs good the next day until it heats up again.
I find this thread a joke, the engine has had water enter the cylinders it has not run right since and may have permanent damage yet the owner is adjusting the height of the engine?
Yes it might of caused the problem but its like fixing the brakes on a car that has bad body damage and might be a total. Yes the brakes caused the accident but it won't undo the body damage.
In addtion the engine has computer controls/engine managment that might provide error codes that would tell him what is wrong. But he does not understand or have access to diagnostic computer to read the codes. Instead of taking it to a Yamaha Pro who can diagnostic the problem he spends money on a new driveway and continues hacking away at the engine.
V70 you need to do some more reading and then ask if yourself if you want to criticize.
Gringo this is better than reality TV, I'm sure everyone just keeps checking in and reading.
This far along Yamaha should fly someone out and do this for free and use this as a marketing type expense and share this around all applicable dealer networks. I have not read till the end but I am hoping this will be the outcome for you. Youve got fans behind you now. Lets all make this happen. Get on the horn with Yamaha everyone!! Tell them about the 2 gringos!!! V70 your a hater!!!!!!!!
It's really looking like two totally unrelated problems, which really drives ya nuts when you are trying to tie them together because that would make sense. I am sure learning a lot about the HPDI, no joke.
Funny you mentiont Yamaha marketing. The Yamaha guys down here have told me up front they have no knowledge of, or training or parts for any of the HPDIs. So I knew I was pretty much on my own even though the original owner in Florida purchased the transferable Yamaha extended warranty. I guess it only transfers in the USA.
But from a marketing aspect, this motor gets a LOT of attention. Nobody here has ever seen one before. I get asked about it all the time. It would be a hoot to be able to tell these local guys that I found these problems and fixed them without having to send the motor back to the US or without any local support.
They have 'heard' that HPDIs have a bad name, but they have no first hand knowledge of them. IF the local dealer would sell a good fuel filtration package and teach their mechanics what we have learned during this, I bet they could sell some motors here. The local guys are starting to grumble about the four strokes. They don't like them. I noticed that the Caribbean Cruise water taxi service just put two Suzuki 300 four strokes on their water taxi to North Caicos.
I was admiring them at the marina and one of the local guys said, Yeah, they all run good when they are brand new. Come see what's on that boat six months from now.
They run a half dozen trips a day, seven days a week. They do NOT tolerate stuff that breaks on them. They just replace it. Its a tough crowd here.
Yep. My wife saw the Filipinos while biking, and she told them they could have the gas if they wanted it. Yesterdy afternoon they showed up with two Suzukis and a bunch of miscellaneous buckets etc. and siphoned all the gas out that they could get. They filled the tanks of both Samurais, loaded the rest of the buckets of gasoline in the back, and left as happy as happy campers can be. I was cringing seeing them hauling A over this lumpy dirt road with open buckets of gasoline in the back.
The HPDI was running on this gas, just as well as it does on new gas. Shouldn't hurt their low tech carbed motors.
I am just taking this opportunity to start fresh after I figure out what's going on with the motor. And the Filipinos were really, really happy to get the gasoline. They work their butts off for $ 5 an hour, and thirty gallons or so of $4.50/gallon gasoline was like giving them a weeks pay.
I got to know a couple of them, and their stories, while we were waiting for the siphon to fill their tanks, hanging out at my garage for a couple hours. Nice guys. Families in the Philippines, and they work here because the pay is better and they send every spare dollar home. They pool their resources here and live cheap. Six of them chipped in to buy my Samurai. They worked in Taiwan for a while before coming here to the resort construction projects. The slowdown in construction has hurt them, and a lot of them are out of work right now, with no prospects for new jobs any time soon, and they can't afford to fly home or anywhere else at the moment. Some of them are down to fishing for something to eat.
Now they want to know if they can help me with anything.
Of course when I asked them if they knew anything about HPDI's....I found that I am still the island "expert". Unfortunately. These guys are carpenters and painters....and alas, I don't need a carpenter or a painter right now. But if I ever do, I know where to look.
Gringo take a look at this thread ,from a new member
from m680pjh
200 Hpdi fuel troubles
I was recently asked to repair a 2006 Yamaha 200 hpdi. Following investigation I found the engine to be bogging down and starving itself for fuel. I read some of the posts on this site as inspiration as this was a new engine to me and I feel it is only fair to share my results to help someone else in bother.
I started by cleaning and changing all the filters including the vst filter/ guaze and checking all fuel lines. Waste of time.
Cleaned the injectors. Waste of time.
All pressure checks etc pointing to high pressure pump. Using the Yamaha software I monitored the fuel pressure and found it disappearing under any load.I bit the bullet and pulled the front cover off the high pressure pump and found two small guaze filters inside. I removed these by threading in a screw and found one to be partially blocked. I cleaned these using high pressure air and rebuilt the pump.
I put the boat in and it ran like a dream.
To remove and clean these two filters you need no special tools and once the covers are out of the way it takes only twenty minutes. There are no gaskets needed and it might save you lots of trouble and worst of all a failed engine. I will certainly be cleaning them on any engine which I will be servicing from now on.
I hope this post helps someone and better still saves someone from the unnecessary and costly removal of the high pressure pump for the sake of twenty minutes and an airline.
__________________ 2006 Skeeter ZX24 Bay
2006 Yamaha 300 HPDI
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We have not ruled that out. I just got my compressor setup running this morning. Then, just for the heck of it, I touched 12 vdc to an injector connector's pins. I can definitely hear it clicking. So 12 volts fires it. I used one of the suspect injectors for my test, so I know that one is at least moving the solenoid. Then I repeated it with another one. Yep. It clicks. I have not given up on the idea of trying to blow them out with my compressor and some carb cleaner. I would have to either remove a connector from the yamaha, or try to find one somewhere. I do not like the idea of little blue sparks near carb cleaner. Ain't that stuff mostly just carbon tetrachloride?
This may be off some help, but it indicates that the spray pattern also has to be tested, along with cleaning the throttle bodies.
And it talks more about missing being a symptom of plugged injectors instead of lack of power, so when you say ragged, it could mean misfiring?
When you ran the engine in the water, did you try pulling a plug wire off each cylinder to see if this didn't make a difference-identifying the nonperforming cylinder?
Yeah, sparks and carb cleaner don't go well together. The injectors do have a resistance test with a meter. The injector drivers have a voltage test as well. The voltage actually varies some depending on the RPMs of the engine. My HPDI manual only goes to 250 hp but calls for injector driver voltage of 70 volts at cranking speed and 80 volts at RPMs over 1500.
When I home cleaned my friends injectors, I just crimped on small connectors for the injectors, and put shrink-wrap over 'em so they wouldn't touch. I put a push-button inline so I could 'click' them open quickly. You need the fuel injector hose to stay on TIGHT though. When the hose pops off the injector and squirts Fuel Injector cleaner in the face at 50psi, it hurts. If your injectors are like the ones I cleaned, you'll need 2 sizes of fuel hose to fit tightly over both ends of the injector, so you can flush both ways.
If they're clogged, you'll be able to tell by the spray pattern.
__________________ '99 Aquasport 215 Explorer, Johnson 200
Bullshipper, we know the culprits are cylinders 3 and 4. they start running rough at around 3,000 RPM. When we sprayed propane into them, they picked up around 400 RPM and smoothed out. The propane didn't affect the other four cylinders.
We are pretty sure the problem is in those middle two cylinders.
Like someone else said the only thing that cleaning the injectors will do is make them mist better. The reason injectors need to be cleaned is that they fail to seat properly and they leak or drip. Leaking injectors will normally only cause an idle or low rpm problem not at the higher range. IMO
I have a feeling that this is an electrical problem. If these were cylinders on the same head I would suspect a blown head gasket between cylinders. Just my 2 cents
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