2003 f115 need advice

[huntsugar]

i have a 03 yamaha 115 txrb, It started to idle rough so i took it to a dealer to have it checked. it has 187 hours on it. it also has oil coming out the breather hose and going into intake. the mechanic checked it out and said
#1 cylinder 10% leakdown
#2 cylinder 90% leakdown
#3 cylinder 30% leakdown
#4 cylinder 30% leakdown
he also said the intake temp sensor was bad and the tps sensor was bad,
he said i needed a new powerhead and this would cost 7100
the # plug keeps fowing after a couple hours run time. I got the boat back and told the dealer i would run ringfree shock treatment and see if it helped and it didn't. i run two tanks full and it still blows oil out the breather. i took it out today and took the breather hose off and it idle great and run great until it got warmed up, then it started idling rough but above idle it ran perfect. it will pull about 5600 rpm unless i trim it up high then i can get 6000. will the thermostat be a problem. i have had the injectors cleaned and all filters changed and the vst filter cleaned. also changed the its and tps. what can i do now, hate to spend 7100 on new powerhead,thanks for any help.is this motor hard to rebuild if i had a service manual, i have rebuilt several two strokes.

 

[boobie]

Re: 2003 f115 need advice

With the leakdown test results looks like it needs a rebuild.

 

[SparkieBoat]

Re: 2003 f115 need advice

I have a 2003 F-115 25" shaft that has about 340 hours on it, runs great, will sell it to you for $4k cash if you live anywhere near Savannah GA.

 

[huntsugar]

Re: 2003 f115 need advice

thanks for the offer but i have a bad tate in my mouth for yamaha right now, not saying they are not good motors, just saying this one has already had the powerhead changed once with 20 hours on it and now at 187 may need another, how does a motor with that much leak down run at all.

 

[huntsugar]

Re: 2003 f115 need advice

put in johnson forum,started new thread in yamaha forum,sorry