Reliability on Yamaha 90 hp 2 stroke !

[1stoutboard]

I am sure lot of you out there have had ample experience in runnig 2 or 4 stroke engines.How does the reliability record look for a new Yamaha, 2 stroke , 90 hp on a 17ft Glastron. I had an I/O for a couple of yrs and had enough nightmares. I plan to give it extra care.I also plan to use it all year round, since sw florida allows me to do so. <br /> Thank you .

 

[capthobo]

Re: Reliability on Yamaha 90 hp 2 stroke !

OK:<br />Reliability is about equal between the two,but for the extra bucks of the four stroke,it's well worth it in the long haul with the fuel economy savings, & noise reduction. I think the warrentee is also better on the four stroke engines.<br />If penny pinching is your priority though, the two cycle 90 hp. is still one of the best going for yamaha.Remember this: Yamalube costs about $20.00 per gal. Thus adding this amount to every<br />48 to 50 gal. of gasoline.

 

[lonewolf5347]

Re: Reliability on Yamaha 90 hp 2 stroke !

1stoutboard I just pick up this year a 18ft cc sea pro that is powered by a 90 hp yamaha 2 stroke 2003 so far knock wood the engine runs great I have about 20 hours on the outboard and I have not run into any problems .The engine came with a stock prop that is 13 1/4 x17k I just purchase a replacement prop by michigan match 13 1/2 x15 my wot is 5200 rpm at speeds around 36 mph .the lower pitch prop did improve hole shot but lost about 2 mph at top end. I am using the yamaha lube and ring free additive a case of lube was about $75.00 a case I know it a little more than other lubes as for the extened warrany cost was $875.00 from yamaha which I don't think it was a bad price . I have not read any bad reviews on the 90 hp yamaha or any mid-range engine that is in this class

 

[1stoutboard]

Re: Reliability on Yamaha 90 hp 2 stroke !

Thank you for your input folks. I ordered the boat 10 days ago. The extended warranty was about the same as yours lonewolf. So you were getting about 38mph then before you changed your prop! I was reading the manual online for the 2003 90hp. It mentioned that you can use any other tcw-3 2 stroke oil if Yamalube is not available. I know that Yamalube is not cheap by all means. $6.00/qt. others that are NMMA certified are accepted by Yamaha also and less expensive.6.00/gallon for supertech from Walmart.