Decarb an optimax???? Decarb an optimax????
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    Decarb an optimax????
from Phil (  
9/20/2005 5:36:00 PM


 Have an 2003 model 200 opti. just wondering does it need to be decarbed and what steps do i take to do it. thanks for your input. phil

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   my mechanic says,, from Lucky Strike  9/20/2005 7:21:00 PM
 No, just be sure to use quickleen in every tank.Because of the design of the motor, it does not build up carbon the same as conventional motors.also decarbonizing with a product such as Seafoam (great product but not for opti's)will eat up several sensors on the motor.By the way my opti has 950 hours on it and purrs along just fine, and has no big carbon build-up.

   Ring Free from Jeff Hahn  9/20/2005 10:31:00 PM
 Phil: My dealer..a Merc Master mechanic, himself, recommends running Yamaha Ring Free through my Opti a couple times a year. So, far, my 2001 Opti 200 hp motor runs great doing this, plus using Opti oil, exclusively.

Jeff Hahn

   Seafoam not for Opti????? from PumaJeff (  9/20/2005 10:36:00 PM
 What's that all about? :o)

   SeaFoam vs. Ring Free from Hawg Lip (  9/20/2005 10:40:00 PM
 SeaFoam is safe for all sensors. If you look and smell SeaFoam vs. Quik Kleen ad you will see they are very similar.

   additives from jack (  9/20/2005 11:55:00 PM
 I have a 11 yr. old merc, 3.0 litre, 225, efi, have been using Techron additive which costs about $3 a bottle and put it in every tank. Techron is the same as ringfree, and this motor still runs great, I use a preservitive for the gas unless I am fishing every weekend and putting gas in at the same time. This baby will still get up and get, and have been compelimented on how good it runs. Use synthetic in the lower unit, and a good tcw-3 oil... Just for your info....

   That's from Danco  9/21/2005 8:42:00 AM
  because they are all the same. Again the key ingredient is Toulene and they all have it. But the cheapest you can find wheter ring free, Seafoam, Techron or the Merc gas additive.

And although it's great to run it through your gas I would stil do a shock treatment every two years. Here's a great description of how to do a shock treatment.

   Cost to treat a gallon of gas? from Crank (  9/21/2005 11:34:00 AM
 Yamaha recommends 1 oz ring free for 10 gal of gas for deposit prevention. A 12 oz bottle costs around $12 and does 120 gal of gas. How much Techron is needed per gallon for the same purpose?

   shock treatment.... from PumaJeff (  9/21/2005 3:31:00 PM
 Danco's link to a site that tells best way to shock a DFI, is right on. That is the exact method I used, from Bogers Props website, and it works very well. Follow every step exactly. EXCEPT, I don't think it's totally neccessary to immediately run 5000+ rpms as soon as you start engine. Could be a bad idea if water is cold. Ever hear of "piston freeze"!!!!!!!!!!!!!!!! I warm mine up first, no matter what water temp, and then give it hek for a little while. :o)



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