Two Stroke?

nakkers

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Wtf? Such a tease! What are the planning to release?


 
Curious too after the Squeeze showed me that vid.
 
What do you mean bringing them back?
They never went away.
More HP per displacement, lighter and cheaper to build.
Modern technology allows them to pass emissions standards.
100 to 1 oil mix with synthetic biodegradable oil and they dont smoke.
 
What do you mean bringing them back?
They never went away.
More HP per displacement, lighter and cheaper to build.
Modern technology allows them to pass emissions standards.
100 to 1 oil mix with synthetic biodegradable oil and they dont smoke.
Kawasaki hasn't had an adult size 2T for a while. They killed them ~2007.
 
Kawasaki hasn't had an adult size 2T for a while. They killed them ~2007.
Just from my own experience, but it seems to me that their visibility/presence off road has declined. They're likely thinking they'd sell more 2 stroke dirt bikes than 4 strokes.

I bet if they had kept producing the final model KDX220 they'd still be selling them, like Yamaha has done with the YZ250 & 125.
 
From what I have read, it's a off road MX bike only... so far. The CAFE emission rules are different for off road compared to street versions.
Rotax makes a super charged two stroke, that passes California Clean Air regs... there's lots of 2Ts out there and there's sizeable group of us that think a 2T is a superior race engine. Development of 2T engines didn't die, they're better than ever. Direct injection and ECU control does WONDERS

REAL MEN don't need more than two strokes
If you're using more than two strokes: You're playin' with it
Valves work very well in toilets, not in engines
NOTHIN' like the smell of Castrol R in the morning, it smells like VICTORY
 
Just from my own experience, but it seems to me that their visibility/presence off road has declined. They're likely thinking they'd sell more 2 stroke dirt bikes than 4 strokes.

I bet if they had kept producing the final model KDX220 they'd still be selling them, like Yamaha has done with the YZ250 & 125.
Lets not forget the PW50 that had its beginnings back in 1963.
Get them started on blue young.
 
From what I have read, it's a off road MX bike only... so far. The CAFE emission rules are different for off road compared to street versions.
Rotax makes a super charged two stroke, that passes California Clean Air regs... there's lots of 2Ts out there and there's sizeable group of us that think a 2T is a superior race engine. Development of 2T engines didn't die, they're better than ever. Direct injection and ECU control does WONDERS

REAL MEN don't need more than two strokes
If you're using more than two strokes: You're playin' with it
Valves work very well in toilets, not in engines
NOTHIN' like the smell of Castrol R in the morning, it smells like VICTORY
"Castrol R" you must old like me!
 
I tempted fate with a KX250 many times. Near death with the biggest smile on my face. Several times without a witness. So terrifying and exciting at the same time.
 
We used to run royal blue in the sleds.
You'll get us ol' guys bangin on about how Castrol R is the best 2T oil
It is. No debate about it... but you don't need it.
Castrol R is made from castor beans... so it's a vegetable oil and oddly it gets more oily the hotter it gets (no other oil does that, oil usually get thinner with heat) BUT it has overheads: it clots, it leaves carbon deposits and "packs" the rings, doesn't mix with gas worth beans and settles out so you can't store it more than overnight, gets everywhere in the motor and sticks to everything, forever (which sounds like a GOOD thing, but in reality it means you have to strip the motor and wash everything with solvent on a regular basis), Castrol doesn't like cold and turns to mush... it's just not worth it UNLESS you're doing something weird with your 2T like: lake drags or road racing a air cooled. Mosport EATS air cooled 2ts, Daytona is worse.
Most modern 2T oil is great TILL you bake it... trick is: don't bake it. unless you're doing extended WOT you're better off (cheaper and easier) to take some timing out or improve the cooling system than messing with Castrol. Castrol is a lot of work.
And IF you can find Castrol R it's stupid expensive, like $35-40/liter
I have an "in" at Wakefield Canada (Castrol) and was going to buy a keg (32 US gals) of 30R, but it's only make in Britain... and the only way I could GET it here was to buy a seat on a plane for it, and it had to fly in the passenger compartment (it can't get cold)... that didn't happen. I am hoarding 4 or 5 liters for my aircooled racers.
 
You'll get us ol' guys bangin on about how Castrol R is the best 2T oil
It is. No debate about it... but you don't need it.
Castrol R is made from castor beans... so it's a vegetable oil and oddly it gets more oily the hotter it gets (no other oil does that, oil usually get thinner with heat) BUT it has overheads: it clots, it leaves carbon deposits and "packs" the rings, doesn't mix with gas worth beans and settles out so you can't store it more than overnight, gets everywhere in the motor and sticks to everything, forever (which sounds like a GOOD thing, but in reality it means you have to strip the motor and wash everything with solvent on a regular basis), Castrol doesn't like cold and turns to mush... it's just not worth it UNLESS you're doing something weird with your 2T like: lake drags or road racing a air cooled. Mosport EATS air cooled 2ts, Daytona is worse.
Most modern 2T oil is great TILL you bake it... trick is: don't bake it. unless you're doing extended WOT you're better off (cheaper and easier) to take some timing out or improve the cooling system than messing with Castrol. Castrol is a lot of work.
And IF you can find Castrol R it's stupid expensive, like $35-40/liter
I have an "in" at Wakefield Canada (Castrol) and was going to buy a keg (32 US gals) of 30R, but it's only make in Britain... and the only way I could GET it here was to buy a seat on a plane for it, and it had to fly in the passenger compartment (it can't get cold)... that didn't happen. I am hoarding 4 or 5 liters for my aircooled racers.
Was some folks a few yrs ago running a sweet smelling 2stroke oil in sleds, So glad when four strokes came along. no more headaches at the end of the days, smelling two stroke all day not fun, smelling two strokes for a few minutes is fine
 
Was some folks a few yrs ago running a sweet smelling 2stroke oil in sleds, So glad when four strokes came along. no more headaches at the end of the days, smelling two stroke all day not fun, smelling two strokes for a few minutes is fine

For the life of me, I don’t know how I’m still breathing after the smoke, dust and other crap I ingested when riding. And we had to stop for a cig break when fueling back up! 🤪
 
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