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Old 03 October 2007, 03:39   #1
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Evinrude 70hp VRO

Hi,
I have just newly got an evinrude 70hp vro attached to a searider 5.4
I dont have a manual for it and wondered about what premix i should be using for it. i bought a little mixing jug but it seems to be for 50/1 or 100/1 so i'm not too sure what mix too use.....just dont want it to oil up while i'm ticking over....thought this would be a good place to ask.
I had the engine cover off and dont see a seperate oil tank for it....if there was one originally it has been removed. upon looking under the seat there seems to be loads of empty 2 stroke bottles so i am presuming that whoever used the engine did premix.
also i want to service it my self and wondered where i would get a manual for it ......also what parts do you normally change when you service your 2 strokes.

I also got a couple of yanmar tanks for it....although they are new and have never had fuel in them they seem to be classed as diesel ....is there any venting issues or anything i need to be concerned about? as i will be using petrol in them

cheers

Ian
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Old 03 October 2007, 13:11   #2
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Quote:
Originally Posted by iandl View Post
Hi,
I have just newly got an evinrude 70hp vro attached to a searider 5.4
I dont have a manual for it and wondered about what premix i should be using for it. i bought a little mixing jug but it seems to be for 50/1 or 100/1 so i'm not too sure what mix too use.....just dont want it to oil up while i'm ticking over....thought this would be a good place to ask.
50:1
Quote:
Originally Posted by iandl View Post
I had the engine cover off and dont see a seperate oil tank for it....if there was one originally it has been removed. upon looking under the seat there seems to be loads of empty 2 stroke bottles so i am presuming that whoever used the engine did premix.
It's very common for the VRO system to be removed as it got some very bad press and was blamed for a lot of engine failures with no real proof in most cases.
Quote:
Originally Posted by iandl View Post
also i want to service it my self and wondered where i would get a manual for it ......also what parts do you normally change when you service your 2 strokes.
Change plugs,check the timing,check all hoses and HT leads for cracks,grease everything that has a nipple and anything that moves,change lower unit gear oil(make sure you use the correct oil-it'll be in the manual), check/drain water trap and fuel filter,spray everything with quicksilver corrosion guard.
Quote:
Originally Posted by iandl View Post
I also got a couple of yanmar tanks for it....although they are new and have never had fuel in them they seem to be classed as diesel ....is there any venting issues or anything i need to be concerned about? as i will be using petrol in them
What are they made of and do they have vents?
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Old 03 October 2007, 13:58   #3
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Country: UK - Scotland
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Make: shakespeare
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Thanks Nos42r ....the tanks are steel and do have vents

any ideas about a service manual

cheers

Ian
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Old 03 October 2007, 15:09   #4
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Country: UK - England
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Tanks should be fine then. The service manual is either an ebay CD jobbie (the CD manuals are actually quite good), a seloc manual also on ebay or mail order the genuine one via a dealer.
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