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Discussion in 'Thumpers' started by futuretrash, Feb 10, 2009.
What are you referring to? EFI?
Interesting link you posted. A wide ratio DR-Z400 would be sweet.
'06 KLX250s with 351 kit installed over winter. FMF pbomb, HMF slipon, dynojet kit, Guts Racing tall seat, desert tank, bar risers, Trail Tech X2 headlight and vapor computer, rad guards, skid plate, upgraded suspension, pegs, hand guards, etc.
The WR couldn't haul it, so the KLX did.
Pulled the trigger on a new WR250R.
I have a very nicely setup DR650 (FCR carb, GSXR can, and suspension mods) that I have taken on some long DS rides and a 2003 KTM450 EXC that I am still learning to love.
I heard a lot about the WR and decide to rent one from GSM rentals when I was in Townsend, TN (thanks Lt. Dan!) and was flat out impressed with the bike. My girl friend was on her Ninja 250 and had a hard time sticking with me through the twisties but could muscle by on the straights. When I took that little bike off road it was wonderful and that is pretty much a stock bike.
For the type of long distance DS riding that I like to do I think the WR will fit the bill very well. I was looking to pull the trigger on a newer KTM 500 (if only Suz would put a 6 speed on the DRz400) but the maintenance interval and the 350W system on the WR really made up my mind.
Yeah, it will never be as fast as my KTM.. but then it doesn't have to be.
Nice!! Puttin that Kawasaki to work.....
The main theoretical limit to rpm is piston speed, which is a function of stroke, not bore. So a big bore kit doesn't affect that. I suppose if the piston weight created a serious engine balance problem it would be an issue. And I suppose it would be theoretically possible to make a piston so short relative to it's width that it could not run parallel in the bore and would create rapid wear. But these kinds of problems have not shown up with the kits available for either the WRR or KLX.
You mean like that gimmicky solid state ignition on the DRZ? Yeah, let's bring back mechanical ignition points. You never know when one of those CDI thingamajigs is gonna leave you stranded and there's no way to fix it in the field.
Wide-ratio gearsets are now available for the DR-Z. At least one of them offers almost exactly the same total gearspread as the WR250R's 6spd.
That's awesome news on the DRZ's wide ratio tranny! I keep waiting for a revision to that bike - I do believe it's so close to being the bomb. But adding a 6th gear would be the firs thing I would do.
FWIW I just passed 21,000KM on my 351 kit, 51,000 KM on my odometer and it was a daily commuter for 2 years for a previous owner who had unhooked the odometer when he got it.
I love my 351; one negative is I've never gotten the jetting worked out and it gets about 70% of the mileage of my 690 enduro. Most all the new KLX's are fuel injected but last I heard although guys were getting the mapping close no one had really done it well yet though that's been a while.
Since I'm more of a dirt guy I like the "old" taller KLX, with the new FI and 351 and KX250 suspension/front end as a pretty good dirt bike.
I'm starting to think the ultimate reliable dual sport in this category may come from a 20 year old engine - the 2 stroke Honda CRM 250. See them all the time with upwards of 70K KM. As a dirt bike its probably in the category of a CRF250L. Not as good of legs as the XR250, but the engine is almost twice as strong, just as reliable and 3X easier to rebuild.
So here's the scoop that some guys in Thailand have done: they call it the Honda CRM250CR. Put the CRM engine in a Honda CR250 frame, mounting up lights, ignition, kickstand etc and customize the suspension to your liking.
At the end of the day, they've added about 35 lbs to the CR250, taken 5 HP away, BUT its still 50 lbs lighter than a WR250/KLX250. Weight and HP are comparable to a KTM EXC350, cost is double, lots of work, BUT maintenance schedule is about 3X less and life expectancy is 10X more.
I just watched the wide ratio DR you tube! Great news! Now I have to say I don't believe that acceleration wasn't affected at all but the only guys who would really notice wouldn't be on this bike.
So I'm getting excited about the DR! I had written it off my short list of happening, reliable dual sports as I've found changing gear ratios is much tougher than making up for lack of hp.
This changes everything.
So now I'm curious... whose got a chunk of miles on one? How many? (I've got 5X,000 KM on my KLX's odometer BUT I'm guessing 80,000 in reality!)
Any one have a reliability report on a 434/440? Any thoughts on that Eddie Sisernos? guys' engine builds?
How much is this gear set? Thanks y'all!
I found this on ThumperTalk:
Retail price is $689 for the set of eight gears (2nd thru 5<sup class="bbc">th</sup>) but I am currently offering a 10% introductory discount ($620.10) and free machining of your shift forks to make the installation easier.
Of course that doesn't include what it will cost to have somebody install the gear set, if you aren't the type that feels comfortable pulling your engine that far apart.
Just farkled out my KLX250SF with 21/18" Excel wheels and a bunch of other stuff. Shock, header, muffler, rack, handlebars, grips, lights, footpegs, etc... If it doesn't sell soon, I'll probably add the 351cc kit and a new Mikuni carb this Winter. It also has a 3 gal IMS tank not shown in the pic. The KLX does alright on the highway. Not enough guts for interstate riding though, so that limits it's use. Otherwise, it would be the perfect dualsport. I want something a little bigger.
Yes, it is clean in the picture! Yes, I've had it on trails! Yes, the first 4K gets it! I have it an ad on this site for it.
If I were to do the KLX again, I would have gone with the RAD Manufacturing cush drive rear hub and Eco front hub as a basis for the new wheels. If it doesn't sell and I keep it I still may.
20k mile piston/ ring replacement intervals with a 434cc and 40k mile crank replacement or inspection.
I avoid interstates on ANY bike I am riding so I do not pick a bike based on interstate manners. Even my Harley rarely saw interstates.
Wow electric and kick start on the KLX this would make my dream come true ,but no way for this version in my country!
Good Eye for finding the kicker on her. Added it this winter during the 351 build - it didn't come stock. Easy for the 2006/07, but I'm not sure it fits as well for the later models. A pumper carb (TM36-68) will be this winter's mod.
I have had a 2005 DRZ400s with full Yoshi and air box mods and jetted to match
a 2008 WR250r bone stock and now a 2009 KLX250s M4 titanium pipe air box top off and jetted to match.
I hated the worthless tall 6th gear on the WR and the engine noise from underneath with a skid plate and the zero power off the line. I loved the engine noise once it was in the meat! When I rode with some other bigger bore buddies it was all I could do to keep up with them and by the end of the day my shins where killing me from shifting. The suspension was like a sink bug and it felt heavy when pushing or lifting it up as did the DRZ. The DRZ needs a 6th gear for street and a redesign for sure but overall is a great all around bike. The KLX runs great a bit low on power but just I love it from the red plastic to the huge speedo and tachometer. The previous owner removed a total of 10.5lbs of crap and shaved another 10lbs on the pipe so it is pretty light.
So just curious why 3 bikes so similar?
On a side note my 351 now has well over 20,000 miles so I'm thinking it's a pretty reliable big bore which is what this category is all about. I'm not sure if it would hang with a stock DR reliability wise, but it's got a tad more power, a 6th gear and about 20 lbs less weight....
All these are easily fixable except the engine noise. Yes 6th gear is worthless stock. Like how the engineers set the gearing up to meet noise regulations. With a gearing change to 13/47 it will still allow highway use and trail use at the same time. The suspension can be lowered to if you require it to get rid of the stink bug.
This is a video I shot back in 2010 and one from this weekend before I opened the air box lid
WR makes this horrible motor wine but is not going as fast as it sounds!
hi guys, interesting topic.
I just came off a CB1000R (amzing bike, loved it) and moved to a second hand WR450F
just got slick of bloody car drivers.
I went looking for a wr250r cos I like 250's and playing around, going fast and having fun etc but for the same price of a second hand wr250r i found a second hand wr450f with 2700km on the clock, more power, :)
Now my wife has a xt250 (both 5 speed bikes) great little bike love riding it now and then, but here is the interesting thing.
When we go riding (which is very sandy) everywhere i take the more powerful better equiped wr450f my wife with much less skill and less powerful bike, can still get her xt250 there :huh. And when your pushing or picking up either bike, both fill heavy.
So dont worry about big bore or better this or that, your gona find that most of the time, any of the bikes listed are gona take you fun places. Both our bikes go on the road to the trails then back home again. Find the bike that fits you chose the right tires and just ride..
Most people are faster on smaller bikes than on bigger bikes - they just don't want to admit it.
When we ride smaller less powerful bikes we pick cleaner lines, conserve momentum, brake less and so. Less energy wasted.
Have you ever seen a F1 driver do a lap in a normal road car? It looks slow because they're not sliding about, over-revving or braking to late. They're using every available bit of energy to go forward, and they use every inch of the track to avoid wheelspin or slides.
When it comes to road bikes my limit is about a sports 600 - any bigger than that and I don't go any faster, I just scare myself half to death.
When it comes to enduro my limit is about a 250cc fourstroke - any bigger than that and I think I'm actually going slower overall.
Small bikes are great! 30bhp will take you around the world easy!
Yeah, i hear a lot of people saying they like the extra power of the bigger bike, but with bigger your looking a more fuel, more tire wear, more chain wear etc etc and buying a 250 just to spend the money on a bigger piston seems little strange to me, just buy the bigger bike..
I loved my cb1000r but it had more power than i ever needed even tho it was great fun and i would of happly got a wr250r (if i could of found a good one at the time) instead of my wr450f. It really is amazing how good modern 250's are and where they can go.
There is always going to be a compermise with a dual sport but when i am in really ruff stuff (or just trying to do a U turn on a tight track) and i'm picking up my bike plus the misses bike i want the lightest easiest bike for that time.
If the bike is only good for 80-90% of ur riding and if that other 10% is shit because the bike is to big / heavy etc your gona be yelling or sorts of things at the bike and yourself for buying the bike. It's those times you'll be wishing for something else. You dont want to come out of a great trail section just say "I'm never doing that again" cause of the bike.
My last ride on my wr450f and the misses on her xt250, i dropped my bike twice (having fun, going little silly of course) but she didn't drop her bike once and still went where i did, and she loved it.
In the past when the bike wasn't set up right, wrong tires, high seat etc she was hating how hard it was, but now right bike and right set up she is loving it.
Bigger isn't always better, sometimes its just bigger and harder, find something that fits you
Another thing, we once had to go off a very narrow track to get around an idiot in a broken down ute on a really rough track. I rode my wife's xt250 around through very very slippery bush over branches etc and I had traction all the way around and back onto the track, when I tried to get the 450 around it just kept slipping and found it really hand, even though i was very careful with the clutch and throttle. The extra power to the rear wheel made it much much harder to get traction, but there was also a really narley rocky up hill where both bikes were sliding all over the place and I just twitted the throttle and up she went no probs