Pud
ArboristSite Operative
Would u just be able to buy a little cam instead of having to get it ported ?
And whats the best oil and ratio for the 4 mix engines
And whats the best oil and ratio for the 4 mix engines
The new stihl 662 4 mix
- Thread starter Trx250r180
- Start date
Help Support Arborist Forum:
Rx7man
Cattle Rubbing Post
My buddy has a little KTM 80 2 stroke.. that thing is a wicked little ride.. 22HP. Honda's new CRF150R is also 22 HP
i wouldn't say that, KTM 450 4 stroke desert racers are around 80 hp nowadays. And 250+ HP for the 1000cc GP bikes
kangst
Moparmyway
Its just a saw
- Joined
- Dec 2, 2012
- Messages
- 2,481
Looking at a KX85 for my son ............... still a 2 stroke 
From pictures on the internet that one has the pockets on the sides of the piston similar to seen on here.Looking at a KX85 for my son ............... still a 2 stroke
Rx7man
Cattle Rubbing Post
Honestly, I hope your son isn't just learning on his first bike, that is a whole lot of bike to learn on.. On the other hand the bike is very well built and short of high speed crashes, it'll withstand some abuse
And the power numbers I quoted were for the 85cc
And the power numbers I quoted were for the 85cc
Moparmyway
Its just a saw
- Joined
- Dec 2, 2012
- Messages
- 2,481
He has been riding for 4 years now ............. nothing competetive, he is good and rides safe.
Rx7man
Cattle Rubbing Post
Then he should have a blast on it! I'm 6' and 140 lbs, and I know I'd be able to have a lot of fun on it too.
Moparmyway
Its just a saw
- Joined
- Dec 2, 2012
- Messages
- 2,481
I am 5'11" and 245# ............... I will see just how durable the rear shock and chassis tube actually is
(NOT planning on any hard riding, those years have long past)
Around 60hp for a 450 stock..
Trx250r180
Saw polisher
I noticed when went to 4 stoke atv's i was able to do more laps without getting as tired because the power was not so violent ,even though the bike was heavier ,took some adapting ,like less feathering of the clutch for one ,
I find my friends yzf450 wears me out much faster than my yz250.
Two stroke fourwheeler had pretty dated designs. Motocross two strokes advanced well beyond in both power and tractability.
Rx7man
Cattle Rubbing Post
I had a KTM 450 XC-W (2007), didn't like the handling of it at all, felt twitchy, anything over 50 MPH on dirt roads felt like a tankslapper was in the works.. sold it before I ever had it happen. It had nice top end power, but the grunt in the bottom wasn't nearly what my 1984 XR500 had. Also, being a pretty high-strung engine, I didn't feel like it would have the durability, and repairs on that would be very expensive.
Repairs in four stroke mx bikes are very expensive.
ChoppyChoppy
Tree Freak
So... uh... is this thread about a chainsaw or motorsickles?
Trx250r180
Saw polisher
Rx7man
Cattle Rubbing Post
I don't want a pickle....So... uh... is this thread about a chainsaw or motorsickles?
I should have added those are factory teams numbers
I doubt it. That would mean they have around 20 hp more than stock to hit 80hp. Maybe in road race trim, but not for a desert racer.
Even then, so what. A circa 1984 design, the honda cr 500 made around 60 hp stock and is stone simple. The last of the 500cc gp road racers were around 200hp.
Four strokes can never compete with two strokes on a level playing field.
Rev
They Is No Tomorrow!!!
Magnst, 4 stroke ain't nothin' but jangst.
