2000 yamaha saltwater series 150hp decarb ?

[khoi36]

I'm think about doing a shock treatment on my motor.
Right now my compression read
1=120
2=115
3=115
4=115
5=115
6=115

Will a shock treatment with seafoam lower my compression or will it help improve it?
The motor run great, I have ask co worker regarding to this . They say if it aint broken don't fix it and also if during decarb and a chunk of carbon broke loose it
can damage your sore the cynder wall.

thanks

 

[Capt Ken]

Re: 2000 yamaha saltwater series 150hp decarb ?

If you haven't been following Yamaha's recommendation and running Ringfree or some kind of decarboning agent like Techron, then you need to shock it. I would just buy a big bottle of Techron and pour all of it in the fuel tank.

 

[JB]

Re: 2000 yamaha saltwater series 150hp decarb ?

When you did the compression test, did you follow the instructions in the Engine FAQs Forum exactly? The magnitude of the psi is irrelevant, the cylinder match is almost unbeatable; near perfect.

It ain't broke. Don't get outboard hypochondria.

A carbon treatment would not do any harm, but it probably wouldn't do any good either

 

[robert graham]

Re: 2000 yamaha saltwater series 150hp decarb ?

Compression readings are great and "the motor runs great"...no problem!....Maybe start using the Yamaha Ringfree at the "deposit prevention" dosage?

 

[khoi36]

Re: 2000 yamaha saltwater series 150hp decarb ?

thanks for everyone reply I will start using ring free.
as a fuel additive .