2011 Model Gassers

[nambo-trev]

its funny you said that with the longer muffler and leverage on the sub-frame because i had WTEC's 07 ec250 out about 3 weeks ago and his has a turbine core tucked nicely under the plastic and subframe, i must have clipped something but without even a fall ripped the mounts in half off the silencer and had to hunt it down i agree smaller is nicer but there is so many variables that can damage an exhaust one could ride with a stealth with no damage for a year but ride with a turbine core for 1(like me) and rip the whole issue off. ultimately its preference imo

 

[eff]

I've welded the tab back on my subframe twice now. I'm fairly sure it was a hit to the pipe itself that caused it to break off.

 

[nambo-trev]

ya this was strange because i didnt feel like i hit anything and i tore it right off both mounts. seemed like some tesion was on the pipe thought so the silencer was being pulled down and it finally just let go. not sure what happened there all i know is the bike was quite and then she was roaring and i was searching for a silencer

 

[GMP]

Yeah, you can break anything eventually. Some things though just stand out as higher risk, buy hey I get paid for looking for trouble and solving problems.

The newer bikes have much thicker subframe tabs, the pre '07 were weaker and the alignment was worse. Huskys are weaker still.

 

[Neil E.]

The advanced images suggest the bike has the 2K3 ignition, i.e. larger flywheel.

This would be good, but the estart changes might require the small flywheel. The early engines with a balancer had a small flywheel and a different setup to generate power for lighting.

 

[nambo-trev]

does anyone know from the united states if your bikes came with the lighter ignition? my buddy and i were discussing how every bike that weve seen come to canada has the heavier ignition. im just curious if all of them shipped to north america were the same because when we read the first review of the six days 250 it had the lighter ignition and they were saying it was just gnarly.

 

[GMP]

Canada has always received the standard or world spec bikes with the 2K-3. We got the 2K-2 on some bikes since the the first XC series, then the DEs, and now some newer bikes.

 

[nambo-trev]

thanks alot, been wondering that for a while, have you ridden 2 identical bikes with the different ignitions?if so id like to here your opinion?

 

[Neil E.]

This is good info. Typically I would add a flywheel weight to the 2K3 flywheel to make it better in slimy conditions. The 2K2 might not have enough room to reach the total weight I would go to.

Does anyone know the actual weight of the 2K2 and 2K3 flywheels?

 

[widebear]

http://www.gasgasrider.org/html/flywheel_effect.html

 

[GMP]

I've owned three different GG 250s and have had both ignitions. At one time I had both ignitions set up so I could quickly swap them. I settled on the lighter 2K-2 with a 14 oz weight, along with a G2 throttle and #200 cam. I also have several weights and will sometimes swap a 10 oz in for a sandy course. I thought the 2K-3 was way too heavy on the 250, but may be more suited to a hard running 300. The 2K-2 with the 14 oz is approx half the inertia of the 2K-3. This works for me and I ride some pretty nasty terrain. You cant compare just weight between the two as the 2K-3 is larger in dia. and has a big effect on overall inertia.

Most US riders and dealers prefered the lighter 2K-2, and that was one key difference in the DE or "Dealer Edition" bikes, actually a request by US dealers.

With the 2K-2, a couple weights, and a G2 throttle, you have a lot of tuning possibilities.

 

[nambo-trev]

very interesting, exactly what i wanted to know thanks!!! strange that canada gets all 2k3 igintions then without an option. i really liked the 250 sixdays though it bogs pretty low for what kind of bike i thought it would be.

 

[Neil E.]

http://www.gasgasrider.org/html/flywheel_effect.html

That sums up the way I look at it too. It is very difficult to gain flywheel effect from adding a weight when you only have the small flywheel to begin with. Diameter is more significant than weight. The larger EC flywheel is much better for general trail riding.

 

[Brian]

For a solid cylinder.
Moment of Inertia = 1/2 * mass * radius^2

This has been a very interesting thread. Hope the bikes sell well.

 

[SpeedyManiac]

I've ridden 250s with both ignition setups. My personal preference is for the 2k-3. I don't find I lose much in the open stuff, but the heavier flywheel makes a huge difference in the technical terrain.

 

[REVERUP]

My first two 300s had 2k-3's My current has the 2K- 2.
I wouldn't want it any other way now on a 300.

The 2K- 2 alows the 300 RPM's to ramp up quicker, more like the 250 but still get the benefit of the low RPM torque and lugability of the 300. For trail riders this may not be the best set up, but for racing or aggressive riders it is the way to go on the 300 IMHO.

Roscoe

 

[nambo-trev]

ya i read the review for the 2010 gasgas six days and the a level rider said it was definetly not for the timid with the light ignition and unless you are an A level rider recommend against buying this edition because it needs to be ridden hard to truly shine. after riding my buddies i totally disagreed but then found out the ignition was heavier, i luv that bike just the way it is, its what made me switch to a 2-stroke from a 4 and choose gasgas!

 

[ScottyR]

I have owned both set-ups and I prefer the 2K2 no questions. The heavier FWW makes the 250 feel like a dog.

 

[GMP]

Like many things this is a personal preferance, there is no right/wrong answer. Just don't take that review to heart as the 250 is very smooth even with the 2K-2. I ride in some very technical terrain like ledges, rock gardens, steep climbs, and off camber rock slabs, and never wish for more flywheel. The bike doesn't stall and I have plenty of snap to wheelie over stuff and launch out of turns, where my 2k-3 equiped bike was more sluggish and needed more clutch.

You can always switch ignitions to experiment, the cases accept both and the CDI is compatible. Keep your eyes on the classifieds here, they show up. I have found one of each, last I traded a 2K-3 for a spare 2K-2.

I have not yet verified it but I suspect some of the KTM Kokousan 2K-2s will work. They are electrically the same and the backing plates look VERY similar. Crank taper/keyway timing is the question, I have to compare my spare to the one on my friends KTM300.

 

[Neil E.]

You can always switch ignitions to experiment, the cases accept both and the CDI is compatible.

Flywheel weight is definitely personal preference. I have no problem buying a bike with the 2K2 as long as the 2K3 can be fitted without modifications. This is what I really need to know for the 2011 models since there may be changes due to the estart.