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Author Topic:   Engine/gas
ChocLabWhaler posted 06-23-2002 06:48 AM ET (US)   Profile for ChocLabWhaler   Send Email to ChocLabWhaler  
Before I do anything stupid.....
Do I assume that the 115 Envinude 1990 is an oil/gas mixture in the gas tank? Or is there an oil resevoir in the engine? If oil/gas, is it 50:1 for a regular 2-stroke engine? The oil bottles refer to many ratios. Thanks for your patience and understanding with a relative newbie.
Clark Roberts posted 06-23-2002 07:18 AM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
Choc, the 115 OMC is fitted with what they call a VRO system (variable ratio oiling - exclusive to OMC) but it could have been removed, in which case it is now a "pre-mix"(mix oil in gas tank) at 50:1 gas to oil ratio. On the VRO system there is a separate oil tank and no reservoir under engine cowling... Clark... SCN
JBCornwell posted 06-23-2002 07:20 AM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
Hi, CLW.

I just noticed that Clark posted while I was composing.

He said it all.

Good luck.

Red sky at night. . .
JB :)

ChocLabWhaler posted 06-23-2002 07:55 AM ET (US)     Profile for ChocLabWhaler  Send Email to ChocLabWhaler     
News to me... Now, do I understand that this oil tank would external to the engine? Or, is inside the cowling? If inside, what does it look like?
Thanks for your help.
simonmeridew posted 06-23-2002 08:20 AM ET (US)     Profile for simonmeridew  Send Email to simonmeridew     
Expect to find the approx. 2 gallon plastic container inside the center console, with a black rubber hose and squeeze bulb just like the gas hose has. The OMC container is milky colored PVC plastic with a black cover and a screw off lid to fill it with.
Boston Marine posted 06-23-2002 09:09 AM ET (US)     Profile for Boston Marine    
Look on port side of engine. There should be gas hook up and another single line slipped on a nipple just below that. If not and is capped,mix your fuel manually.
ChocLabWhaler posted 06-23-2002 10:25 AM ET (US)     Profile for ChocLabWhaler  Send Email to ChocLabWhaler     
Looks like an OMC manual is next on the list for my West Marine run this morning. The nipple is there but not "capped". Should it be? Did not see a separate resevoir, so I assume that I mix manually. Should I replace the VRO resevoir?
Y'all been a big help so far...Thanks.
Clark Roberts posted 06-23-2002 01:59 PM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
CLW, if it were me I would remove the VRO pump (includes a "piggy back" fuel pump) along with all oil lines and forget the nipple! Then I would get a standard fuel pump for the 115 and install it! This way you have a new fuel pump and all that plumbing and pump (which is mounted to air box) are gone and there is much more space should you have to remove carbs..etc..etc..etc... Just my 2Cents worth! Happy Whalin',,, Clark .. Spruce Creek Navy

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