Two-stroke oil usage

[gammaguy]

a few interesting ideas here.:http://www.dansmc.com/2stroke_oil.htm

[Aiolos]

I use Shell VSX2. Its fully synthetic and less than $50 for 4 litres.

[bumsex]

never trust an oil pump. (2 stroke oil pump)

[Racey Rider]

Perhaps you would like to enlighten us as to why not, rather than just chuck out a statement like that!
and if we aren't to trust them,, what Are we to do,,, Not ride our bikes? Not ride further from home than half a tank of pre-mix?

Two stroke oil pumps have been a system working well for years.
Yes you occasionally hear of one 'packing up' and causing seizer, but then everything on any motorbike you might name has 'packed up' at least once, for someone, somewhere.

[Ixion]

I've trusted them for thirty odd years. Never had a two smoker oil pump fail . Have seized engines both pump and pre-mix, more premix than pump.

And I have had four stroke oil pumps fail. Why should a two stroke oil pump be more prone to failure than a four stroke one ?

[Coyote]

My suggestion was you should only need semi synthetic oil for commuting with.
I've seen suitable stuff at $10/L at Supercheap Autos.

I currently use Valvoline 2 Stroke Racing Oil. That's the one for $10/L at Supercheap. I haven't noticed any problems. But friends who have been there when i start it and who have followed me comment on how bad it smells, which I hadn't noticed. Maybe these 4 stroke riders and non-bikers just aren't accustomed to the fragrant odour of a 2 stroke

And it's only an RG, doesn't need the finest stuff. My Dad runs the $70/L stuff on the Montesa (he loves that thing more than the family though)

[KLOWN]

i would get about 600km - 800km for a litre of in my old rg.

[Motu]

I've taken a few pumps out of 2 strokes for various reasons - can't be stuffed repairing cables,lose a few grams,salt water damage,fires....plenty of reasons where it's more economical to ditch the system than repair it.But not on Suzuki's with pressure fed bearings,Kawasaki street bikes too.Yamaha are easiest,they always just run a jet into the intake.

[imdying]

But not on Suzuki's with pressure fed bearings

Heh, was gonna mention them. Premix that you bastards!

[Motu]

Remove the cable but leave the pump hooked up,then run 50:1 pre mix or less - that gives an rpm fed supply to the left side bearing,which is collected and fed to the bigend,and premix for the bore and added safety for the bigend.

[imdying]

Or leave the pump as it is

[gammaguy]

pumps are best left as is unless you have an in depth knowledge of various two stroke principles including fuel quality variations and even ambient air density to name but two.any system is a compromise but at least the oil pump system prevents over-oiling at low RPM which is the cause of many problems,not the least being peoples misconception that two strokes are "smelly smokey bloody things"If your oil system is set up right they can be as clean burning as a four stroke with no visible smoke at all.
Having said that the Nylon Oil Pump drive gear on my TDR sheared off last year so yup it was engine rebuild time.Turns out some previous "fiddler"had forgot to put the pump drive gear clip on when he last was in there!

[TygerTung]

I use Castrol TTS, it's 28 a litre OR if you get a 4L pack from supercheap it's only $80 for 4 Litres, making it pretty economical

[gammaguy]

dont skimp on the oil quality.RG 150 power valves cost my mate $340 EACH cos it had been run on cheap oil and they had to be destroyed to get them out when they jammed in place making the RG as slow as a honda 50(well almost).Was still cheaper than a new cylinder tho but only just......

[Racey Rider]

Just for reference:

I have done two tests on my current KR150a re 2/oil use.

Test 1.
1000Kms - 80% open road riding at 110km/h - used 1050mls

Test 2.
1000Kms - Commuting - 50% town, 50% open road. - used 950mls

One thing that bugs me on the KR150 is the low fuel light. It seems to come on about 2 km After I have had to switch to reserve. Hello! I've just switched to reserve while looking in the mirror at that big truck I just passed bearing down on me! I know I'm low on fuel!