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Author Topic:   optimax
dauntlass 18 posted 06-29-2001 11:11 PM ET (US)   Profile for dauntlass 18   Send Email to dauntlass 18  
I would like to hear some reports from optimax owners who are haveing normal use from there engines .Fuel comp.?,spark plug life,normal wear items etc.
Clark Roberts posted 06-30-2001 06:56 AM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
I am experiencing what may be considered normal performance from a 2000 opti-135 mounted on a 1979 Revenge 21. I have 220hrs on her and get average of 5mpg... top speed is 45 and I cruise mostly at 3500rpm and 28mph! I have taken several trips of 300miles plus and it has never missed a beat! I just changed plugs from Champion to NGK and installed 120 degree thermostats (from the orig. 143 degree) because I didn't like the high idle temps in our warm Fla. waters. I keep my fingers crossed and am trying to do all my maint... wish I had a diagnostic computer... Anything mechanical can fail as we all know so am keeping my fingers crossed... I usually put 2000hrs plus on my engines and hope to do so with this one... Keep on 'Whalin' Clark... Spruce Creek Navy
Ed Stone posted 07-01-2001 09:26 PM ET (US)     Profile for Ed Stone  Send Email to Ed Stone     
I'm closing in on 100hrs on my pair of
135 opti's.

Here is the minor problems I've had.
Bad primer ball in fuel line.
Cracked lid on oil resivoir.
Impeller and housing on one motor.

I trolled for close to two hours on
my port motor at 1100rpms this past
saturday.No more heat alarms.

Like everyone else I have changed over
to NGK plugs.(pzfr5f-11) from champions.

If weather permits I'll be testing them
again this weekend.
No complaints here.
Ed Stone

dauntlass 18 posted 07-02-2001 07:12 AM ET (US)     Profile for dauntlass 18  Send Email to dauntlass 18     
I hope I put this comment in the right thread my 2000 model 200 hp optimax has factory installed Champion plugs.Why do the dealers say use NGK plugs and why did Mercury stop useing NGk plugs? I am going to contact Mercury and ask them.

triblet posted 07-02-2001 10:36 AM ET (US)     Profile for triblet  Send Email to triblet     
There's been discussion of NGK vs. Champion
in the 2001 Optimax thread in this forum. See
http://continuouswave.com/ubb/Forum8/HTML/000122.html

Chuck

smo posted 07-12-2001 10:57 AM ET (US)     Profile for smo  Send Email to smo     
I have a pair of 135s on a Conquest 23. My usage is a 2 hour run at minimum planing speed (2800-3000 rpm) followed by a lot of trolling at 1000-1400 rpm. I have just under 3 hours. No problems so far, I love these motors. On a calm day I can get 3mpg, and seldom less than 2.5mpg on the rough days. They start instantly and are smooth. I have replaced plugs and water pumps at the 100 hr intervals, along with lower unit oil. My top speed is 45.5 mph at 5600 rpm, but only do that for a brief 30 second period when I get inside the jetties on each trip out. With two people and full fuel, the boat will plane out on one engine.
BillS

See my conquest23 pics at http://home.austin.rr.com/smohome

smo posted 07-13-2001 11:06 AM ET (US)     Profile for smo  Send Email to smo     
I meant to say "Just under 300 hours", not 3 hours.
Smo
alan posted 07-20-2001 01:35 PM ET (US)     Profile for alan  Send Email to alan     
I have 50 hours on a new 2001 150 Opti. Ran out both last Saturday and Sunday, 17 miles, trolled for two+ hours and back in. Cruised at 3200-3500RPM's/slow trolled, 4-5 hour trips. Registered 5 gallons and 6 gallons used respectively. Can't beat it, but I'm going to check my plus this weekend from all that I have read.

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