Noob 2 stroke question

[Dan Gurney]

How prone at 2 strokes *really* to oiling up?

I am currently trying to decide between spending my £4k on an elderly RIB or a less elderly SIB. For various reasons a RIB is a more attractive option but the ones of the size and type (5 metres ideally) that I can afford tend to have 2 strokes. Now back in the early 90s when I used to occasionally drive our sailing club's Dory which had a 30hp Johnson 2 stroke on it, everyone was consatntly worrying about the thing oiling up. But that was rescue cover so it spent a lot of time idling. If I was to take my RIB to say, Windermere, and run it all day at 1/3 to 1/2 throttle would that cause it to oil up/or harm the engine?

[jezza2011]

it would not harm the engine at all.
and it takes seconds to clear. if its geting oily take it out of gear and rev it up.
simple
you get alot of smoke for a min then it clears itself.
oiling up is really nothing to worry about at all.
I Bimble arround protsmouth alot and my 75 2st doesnt mind getting oiled up. you can tell as it starts to get smokey after say 1 hr at about 10knt . but a quick blast on the throttle clears it.

anything about arround 1/3 throttle and it sorts itself out anyways.

[steco1958]

Originally Posted by jezza2011

it would not harm the engine at all.
and it takes seconds to clear. if its geting oily take it out of gear and rev it up.
simple
you get alot of smoke for a min then it clears itself.
oiling up is really nothing to worry about at all.
I Bimble arround protsmouth alot and my 75 2st doesnt mind getting oiled up. you can tell as it starts to get smokey after say 1 hr at about 10knt . but a quick blast on the throttle clears it.

anything about arround 1/3 throttle and it sorts itself out anyways.

Agreed, same as my Tohatsu 50 Hp 2stroke

[willk]

The two stroke should be fine - carry a spare set of plugs and a spanner, just in case. A SIB is not a great replacement for a RIB.

[hobnob]

Originally Posted by willk

The two stroke should be fine - carry a spare set of plugs and a spanner, just in case. A SIB is not a great replacement for a RIB.

Read up on hot vs. cold spark plugs, and carry a hotter set for use on the Lakes.

My Yamaha 2T 8hp gets different plugs for its use on planing and displacement boats. I'd do the same for a 4-stroke.

[Leapy]

Originally Posted by hobnob

My Yamaha 2T 8hp gets different plugs for its use on planing and displacement boats. I'd do the same for a 4-stroke.

Why would you do that on a four stroke?

[9D280]

I did 7 hrs solid at pretty much idle on my prehistoric premix Merc.

Yes, i had to pull the plugs & clean them but it then did a 60odd mile round trip with no issues.

If its auto mixing, don't worry about it. If it isn't, don't worry but clean the plugs when you finished.