How smoky should a 2 stroke be?

**tigertim20** · 7th April 2012, 16:14

Originally Posted by SMOKEU

My TS185 blows very little smoke, and even in the power band people who have followed me say that they can't see visible smoke coming from the exhaust but they can smell the 2 stroke oil being burned.

If I give the bike a bit of a rev up in the garage then it will have a strong smell of 2 stroke in the garage. It's running on the oil injection system at the moment.

So how smoky should it be?

I had one of them wayyy back when I was younger. I never used the oil injection because it was massively unrelaible. enough so that my brother seized the fucking thing, TWICE.
I just ran premix in the tank.

your plug looks okay to me.

**Coldrider** · 7th April 2012, 16:46

The TS series had suzuki CCI (crank case injection), that lubricated the main crank bearings. A TS (but not the TS400), would need modifications to the bearings to run on premix. I used to run penzoil injection oil and it only ever gave a white whisper at the tailpipe.

**SMOKEU** · 7th April 2012, 17:43

Originally Posted by dangerous

something thats not yet been mentioned is what fuel and oil you are using, Id expect dirter if unleaded, and if ya using a syn oil Ya wont see sfa smoke however if ya using a old school dyno oil it should be puffing all the time, thats a near perfect plug if its a well tuned race engine on avgas and syn oil.

Fresh 91 octane petrol and Castrol 2 stroke mineral oil in the oil tank.

Originally Posted by tigertim20

I had one of them wayyy back when I was younger. I never used the oil injection because it was massively unrelaible. enough so that my brother seized the fucking thing, TWICE.
I just ran premix in the tank.

your plug looks okay to me.

Originally Posted by Coldrider

The TS series had suzuki CCI (crank case injection), that lubricated the main crank bearings. A TS (but not the TS400), would need modifications to the bearings to run on premix. I used to run penzoil injection oil and it only ever gave a white whisper at the tailpipe.

That's the only reason why I'm not running it on pre mix.

**scumdog** · 7th April 2012, 18:55

Originally Posted by SMOKEU

More than 2 strokes is masturbation.

2 strokes is all you'ld need, eh eh?

**SMOKEU** · 7th April 2012, 19:00

Originally Posted by scumdog

2 strokes is all you'ld need, eh eh?

It can be our little secret.

**caspernz** · 7th April 2012, 19:21

Originally Posted by scumdog

2 strokes is all you'ld need, eh eh?

Nonono, it's 2 strokes and then the bell goes: "Switch hands!!"

**mossy1200** · 7th April 2012, 21:04

Originally Posted by caspernz

Nonono, it's 2 strokes and then the bell goes: "Switch hands!!"

Is 2 strokes with both hands 4 stroke?

**Latte** · 7th April 2012, 21:41

How much smoke should a 2 smoke smoke if a 2 smoke would smoke smoke.

**GrayWolf** · 8th April 2012, 13:41

think its been covered Smokeu,
if the pump is lining up at the marks and the carb is correct (early model) the only othe 'check'? is make sure the pipes that feed the oil are in good condition, no partial blocks, or oil weeping anywhere..... you could add a very small amount and I mean SMALL as a premix and see if it makes the bike smoke a lot when its warmed up.
On my Yammy 350LC, I had it tuned quite highly and ran the pump and a little pre mix in the tank. It was smokey as a steam train cold, but only slightly smokier than normal when warm.
footnote IF you added premix as a permanent feature, you'll need to up the main jet about 1-2 sizes.

**dangerous** · 8th April 2012, 19:19

Originally Posted by GrayWolf

footnote IF you added premix as a permanent feature, you'll need to up the main jet about 1-2 sizes.

MEH, ok some reckon adding oil to the fuel means a leaner mix... my worked 350LC race bike with spannies ran std jets, as did the 250 which was also premix but stock, 190 and 230 IIRC.

**GrayWolf** · 8th April 2012, 20:39

Originally Posted by dangerous

MEH, ok some reckon adding oil to the fuel means a leaner mix... my worked 350LC race bike with spannies ran std jets, as did the 250 which was also premix but stock, 190 and 230 IIRC.

yes leaner... less fuel so you need to increase jet size to get the correct fuel/air mixture.... many bikes will 'run faster' lean at the top end... but at the expense of higher temperatures and lower levels of durability of components. In the MT owners group there are a couple of serious tuners who do their own mapping to Power commanders... one lives in Finland so experiences sub -20 degree cold and then summer heats.... he found that lean mix gave about 4hp more, but the motor ran very hot... the correct 02 readings produced the lower HP and normal temperature levels