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Discussion in 'Land of the Rising Sun: ADV Bikes from Japan' started by mr moto, Feb 9, 2008.
I don't think I'm going to find greener grass than this.
Such a good clip
I have the ECU flash, Akra slipon, Arrow headers and PCV with an excellent map. Dynoed at 99.3hp/79.3 ft-lb and pulls hard from the basement to the top.
The reflash was a huge improvement over stock, made the motor much more responsive. The exhaust/PCV really woke up the top end but also added power everywhere else as well.
Here is a dyno chart showing my flashed bike with Akra slipon versus the addition of the Arrow headers and PCV.
Wow! I spent most of the time between 4000-6500 rpm. Looking at your charts tells me that your bike is doing good work in that range.
Would really like to see the stock muffler on the Arrow Headers.
Anyway, thanks for sharing, I want!
The Akra is lighter and is still quiet enough to be street legal in tree-hugging Europe. It adds about 3.5 hp of that total.
There are reams of data clearly showing that nothing filters as well as the paper filters like the OEM in your bike, and certainly if some other filter media worked as well for the bike's design mission Yamaha could use it... After all, they use oiled foam for their MX'ers and other off-road only bikes, right?
But they do that because pure dirt bikes need their filters cleaned quite often, not because foam filters better.
Oiled cotton (or other fabric) gauze doesn't filter nearly as well as paper, not even close. Google "air filter comparison" and see for yourself. Paper wins the battle every time when it comes to keeping dirt out of the engine, and it flows nearly as well as oiled gauze, too, despite what K&N, etc. claim. You'll find that in the same tests.
On top of all that, Yamaha really does use very, very high quality paper filters... Among the best.
As for changing them every 10,000 miles... Well, you can, but that's probably too often. I checked the original one in my S-10 a few times before I replaced it at 16,500 miles, and there was no need to change it. Actually, there was no need to change it at 16,500, but I had the new filter on the bench so I put it in. I'm at over 40,000 miles now, and I'm still on the second filter, and it looks nearly new. I've shaken some dirt out of the element, and tapped some dust out, but it still looks like it could go a long way.
It's certainly up to you, but research, etc. shows paper is the way to go for engine longevity.
Just my two centavos... YMMV.
Tap it out, vacuum from the fresh air side (using higher psi compressed air from the engine side tends to do damage), and look toward the sky for tiny holes. Then look at the inner walls of the air box for potential leakage paths around the filter.
It's probably good to put back in, like Dallara wrote.
Every penny. The stock bike was a sled and sounded like a leaf blower. I'm THRILLED with the way the full Arrow sounds, nice bark when you blip it and quiet on the highway.
Anybody know of a source for fan motor replacements, other than the whole assembly from Yamaha (~$300)...? I searched, but came up empty.
Was sitting at the ATM earlier and noticed the temp gauge ride to 225, 230, 235. WTF!? So I hit the highway and cooled her down. Further inspection revealed a blown fuse, and a dirt dauber nest jamming the fan.
Pulled the side cover, cleaned the blades, and ran it through a heat cycle. Wouldn't come on. Barely bumped it with my finger, and it comes on, but not much power. There's a minor 'rough' spot of resistance about halfway through the rotation, but I pulled the fan and the problem is inside the motor.
It's sealed, so douching it with spray lube will probably prove pointless. Okiegtrider thought there might be a thread somewhere that an R1 unit can be retrofitted....?
In case you've ever wondered what the inside of the fan looks like...
I cleaned up the melted residue on the bottom side of the cover, and it spins freely now. About to test it...
Dammit. Won't do shit now.
Found this: http://www.advrider.com/forums/showpost.php?p=24033736&postcount=22891
Hack'dTiger .............. Need to change to Hack'dTenere.
I think the dirt dobber did your fan in. Good thing you were watching out with the temperature.
Hahahah, yeah, the screen name doesn't really apply anymore.
As for the temp gauge, luckily that's all I ever have it set on. Otherwise it might've got hot enough to puke fluids.
It's not like the thing sits. It gets ridden damn near every day, so the little bugger must've worked overtime one night!
That's because you let the magic smoke out. Any electrician will tell you once the magic smoke comes out, it's all over.
Replacement smoke is available, although Pommy and not Jap, but should work OK.
Some assemblies required.
Very cool! I downloaded the files and it looks pretty easy to make. Thanks!
And of course it's in the fastest of all colors - Blue!