2001 VZ200 Top Port cyl no comp/foul plug

[n4rj]

2001 200 HP HPDI Yamaha with 11,500 miles on GPS (don't know the hours).<br />After malfunction found: Slight Oil Sprayover layer inside cowling, No Copression in Top Port cyl, Fouled plug here(others look fine).<br /><br />While operating: Symptoms:Engine RPM lowered from 4000 to about 3500 for 5-10 seconds, engine cut off, would not immediately turn over but wasn't hot to touch. Peeing Fine and nothing alarmed. After 5 minutes, cranked but would not come up to good RPM and ran very rough. Towed back to home by Sea Tow and checked engine finding above symptoms.<br />Always use Quicksilver Inj Oil and Ringfree and always keep gas tank filled, use every third day, no previous trouble but replaced CPU a year ago.<br />Diagnosis???<br />Cure??? if any other than total replacement???<br /><br />Thanks for any insight.<br /><br />Depressed Fisherman

 

[rodbolt]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

time for a rebuild or replacement. how often is the o2 sensor serviced on your motor?<br />is it still under the extended warrenty? do you have a good working relation with your yamaha dealer? yamaha has been known to supply powerheads with the customer paying the rest as a show of good will even after the warrenty period. but tell me about the O2 sensor service and the VST service intravels.<br /> good luck and keep posting

 

[n4rj]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

O2 Sensor cleaned about 6 mo ago.<br />Not under extended warrenty.<br />Only problem ever was new CPU just after warrenty ran out and Yamaha paid for it since it was a "non abuse issue".<br />Don't know what VST service is but it hasn't had many services..<br />Not sure of hours....when CPU went out the computer showed only 74 hours. However it had about 8500 miles on the GPS. I run averaging 40 mph, very little idling, only been offshore about 10 times wherein I idled most of the time(4-5 hours) to keep the engine going.<br />What is VST and what is your guess on the hours, given the above info.<br />The mechanic here ( excellent reputation) said yesterday he confirmed my diag of a "bad cyl" due to no compression and fouled plug there.<br />Thanks for any help.<br />BTW, in a small marina with about 10 yamahas, 3 others have had this same problem in the last 6 months. 2 others had the same cylinder go. Oil pumps?<br /><br />Thanks,<br /><br />Hugh

 

[rodbolt]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

hello<br /> normally its caused by a carbon buildup in the draw tube. some service techs dontremove the tube and holder for cleaning. I would have to see the piston to tell . usually carbon forms atthe portforthe draw tube and snags a ring. the VST is the vapor seperator. it houses the medium(50psi) pump. but yes HPDI failures are unfortunately faily common. sweet talk yamaha and ask them for help.<br />if you divide 11,500 by 40 ya come up with about 287.5. a quick laptop check will tell the exacthours.<br /> good luck and keep posting

 

[n4rj]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

Talked to Tech today.<br />Gave me the news and options.<br />Rebuild/ Rebuild with new Yama Powerhead/ New Motor.<br />Said something wrong with my hour measure on computer. It showed 74 hours after almost 2 years of use, now it said 11 hours. Couldn't figure out why but insisted the misread has nothing to do with failure. Said they having lots of engines having problems now, and that the 300 HPDI is a major problem for Yamaha.<br />I looked at the specs and since I run this boat about every 3rd cay, a NEW F150 is the answer for me. He says they have given good service.<br />I figure it costs me $1.00 per mile to run gas/oil and they(Yama) want to use the high dollar new $25 oil to help increase te life of these engines. I figure it would cost me only $0.65 per mile to run the F150 although I would sacfrice speed.<br />Speed used to be important but now doesn't seem so important.<br />With questionable reliability with a rebuild with or without the new Yama Powerhead, 90 days isn't much protection.<br />You see good things out of my logic and choice for new engine on a 22' Bay Boat for a lot of regular use?<br />Always a guessing game with boat/motor choices isn't it?<br />I am assuming Yamaha wount help me but he is putting a request saying it may be a long shot.<br />Thanks,<br />My speculations is that Yamaha is trying to get too much HP out of the 2.6 L block and it's a factor but I am just an observer and not an expert.<br /><br />Hugh

 

[rodbolt]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

hello<br /> in good faith I no longer reccomend direct injection of any make, EFI is ok most times. buit if I had a choice I will still take carbs.<br /> but the beauty about a boat is if it aint broke its breaking keeps me in new shoes<br /> good luck and keep posting

 

[gutshot grouper]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

No compression on that cylinder equals a holed piston if you mean what you said, take a look inside thru the spark plug hole, with a small light inside the cylinder,, maybe a longshot,, Gutshot in raleigh

 

[n4rj]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

Didn't see a hole in the piston.<br />The tech's laptop reads 11 hours. It read 74 hours a year ago after 8500 miles.<br />A tech in another shop i was visiting had teh same motor/boat combo with the same engine porblem Saturday and I asked how many hours the engine had on it as I knew the owner. The tech said that the computer says 75 hours but a lot of them " count backwards" whatever that means.<br />Do companies buy broken late model motors/powerheads?<br />Thinking about replacing eh motor with a F150 4 stroke knowing a lot less power. I hear these motors are giving good service.....but....I had heard the Yamaha HPDI was an invincible workhorse. Seems they don't like to go past 3-400 hours as several in the marina are biting the dust after such hours.<br />The 2005 200 Vmax is the larger block, right? At about 70# more than my 2001.<br />What to do? Any more advice out there?<br /><br />Mercury? or Honda?

 

[bossee]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

Hi n4rj,<br /><br />You wrote You have a "22' Bay Boat".<br />150 hp Yamaha F50 4-stroke should be OK in general on a boat this seize in my opinion. It has only 4 cyl and will have to work a little harder when you load the boat with people etc. But the tests I have read about the Yamaha F150 seems very good so it should be a very good choice I think. I own a Yamaha F115 (2003) and if I was going to buy a 150 hp 4-stroke the F150 would be a strong candidate.<br />As You probably know You can buy extended warranty on Yamaha outboards (and other outboards). I have 5 year total warranty on mine, did not cost that much.<br />Personally I would lean towards changing to a new outboard in a situation like Yours - can You trust Your 200 HPDI after rebuilt? At sea You really want to be able to rely on the outboard.<br /><br />Good luck.

 

[n4rj]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

Right. I have taken it out many times offshore in calm seas, However, I couldn't relax with my existing engine as a rebuild.<br />I located a carbed new 150 HP for a good deal. Perhaps that is the way to go. It would be thousands less than another HPDI 200 HP.<br />Several folks warned against the 150 4stroke as it may not be powerful enough.<br />Wonder is there is a market for blown 3 yr old engines???

 

[n4rj]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

Yamaha has agreed to assist in the Rebuild with cutting the cost of a New Yamaha Powerhead in half.<br />Was pleasantly surprised and will take this route.<br />Thanks for the help on this forum.<br /><br />Been crusing around and looks like "Rodbolt" is the Man here.<br />Thanks for your perspective.<br />Hope this new Powrehead an dusing exclusively Yamalube will keep me reliable for awhile.<br />Will trade next year and upgrade Boat and Motor.<br /><br />Hugh

 

[rodbolt]

Re: 2001 VZ200 Top Port cyl no comp/foul plug

hello<br /> while its flattering sometimes, I am just a tech. I just fix them.<br />make sure that you change the o2 sensor, and the injector on that cyl. we just had another 250 HPDI come in with #2 piston eaten off. seems these motors are having some "teething" pains. ( at least that is what they tell us ). but so far yamaha bends over backwards to assist.<br /> good luck with it and post us back how it works out