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Discussion in 'Thumpers' started by klxrdr, May 13, 2007.
Wife just isn't getting into riding on 2 wheels like I'd hoped. Only riding it gets is once/week when I take it out for a spin to keep everything lubricated. Listed her 2003 today for $2350 in case anybody in the SoCal area is looking for one in nice shape with only 1000 miles.
Im looking at the 2013 dr200 on the suzuki site. It looks exactly the same as previous models but the specs state the gas tank is 2.9gal inc reserve. How can this be as the tank is supposed to be 3.4gal i
That's got to be a mistake.
Nah. It's not a mistake. That space in the tank is taken up by the electric fuel pump for the fuel injection. oser
Fuel injection? :huh
I just completed the install of an FMF Q4 muffler and the Kientech jet kit on my 2004 DR200. I also made the airbox mod. I ordered the muffler along with the jet kit by telephone from Kientech. Kientech gave very good service and the parts were here within a few days.
A few observations:
There was a small ding in the side of the FMF muffler. Since it is hidden under the side cover, I decided not to complain about it.
I was surprised that there is no pipe clamp on the front portion of the FMF pipe. It is a fairly loose slip fit onto the head pipe and relies on high-temp RTV for a seal. Not quite as well engineered as the stock muffler clamp setup IMO.
The right side panel gets reinstalled with a spacer and longer screw furnished by FMF. This simply pushes the side panel out further than the factory location. Not a highly engineered solution IMO.
The FMF pipe is very loud. I like a nice exhaust tone, but I was surprised at the increase in sound level. It really has a "bark."
Interestingly, the FMF directions state that the muffler is designed to be used with the factory carburetor jetting!
The jet kit installed with few problems. Be careful as the float bowl screws and bonnet screws were VERY VERY tight. I stripped the head on one bonnet screw and had to hack-saw a slot in it to fit a flat blade screwdriver.
Cold start is greatly improved. Much less warmup required. My seat-of-the-pants road testing shows that the low and mid-range power and responsiveness might be a tiny bit better, but at wide open throttle in 4th and 5th gear, the bike had a intermittent hesitation. Top speed was about 5 mph slower! I ended up putting the stock main jet back in: hesitation gone.
There was no startling performance increase with this installation. Cold start and warmup is much better, with possibly a little bottom and mid range boost. The FMF pipe, like most aftermarket performance parts, almost hits the mark, but fit-up is not as good as factory.
Bottom line for me is that it was a few hundred dollars wasted. Any performance gain is very small, and the FMF pipe isn't as well engineered as I had hoped, and a little too loud. My advice; get just the fuel screw mod from kientech which will cure your cold start/warm-up problems, and have them mod your muffler which will give you a little nicer tone.
So you would just do the fuel screw, and leave the jets alone? What about the airbox? I would love a better cold start with less warmup required.
Kientech jet kit reliably fixes the cold start issue. Plenty of pages to confirm that.
To the OP, I'm not surprised that the pipe didn't make much of a difference. Except for extreme cases, a pipe is usually only good for a 10-15% HP increase on a 4-stroke engine, so you're really only likely to gain 1 or 2 HP at best.
open it up to 3 to 3 1/2 turns out. it is set very lean for EPA regs. a pilot jet is good to 4 1/2 turns open, after that the next size larger PJ is required and it would only be opened 1 1/2 to 2 1/2 turns.
its free to open it up a few turns.
"SOLD" Off to a new home
Good morning DR200 fans. I have a set of Happy Trails SU side racks off my 2008 DR200. They are just sitting collecting dust. If anyone is interested, let know. Left, right, and rear cross-over bar. Four mounting bolts are missing. Excellent condition, no damage. $125 shipped USPS lower 48 only. These list for $279. PM or email me and I can send pictures.
Ok, so its not just the screw, its the total package, including air box mod.
Probably 90% is the screw. You also get a needle which makes the throttle response a bit smoother IMO. Put it this way, it's expensive for a jet kit, but very cheap for the benefits gained. My bike runs at least 10x better since I installed it.
I have the adjustable mixture screw installed on my DR200. Will shimming the needle by .015 or .020" improve performance at all? I shimmed the needle on my stock DR650 carb (along with adj mixture screw and removed snorkel) and the bike runs much better.
If there is anyone in the Puget Sound area that would like a nearly brand new FMF Q4 pipe/muffler for their DR200, I would trade it for a stock muffler, provided it is in excellent condition and has the associated clamp and hardware. I am probably not interested in doing any through-the-mail deals. I would have to see the stock pieces first. If interested, post here and we'll set something up.
shimming will work on any carb since most come epa lean. sometimes mpg goes down slightly, stays the same or goes slightly up. it all depends on what the engine wants for the area u ride in, this was told to me by Marc the owner of Factorypro. he always stresses, its what that particular engine/bike combo wants.
I wrote Jesse today to ask about removing the airbox lid in conjunction with the jet kit:
"We went through all of this in designing the new jet kit with the performance needle. The lid off is the only way to make it work properly. Your air filter does what it is supposed to do as far as keeping foreign matter out of the engine lid or no lid. Small holes only cause turbulence and less needed air flow that is needed to balance the air / fuel ratio. We have sold hundreds of these jet kits and have no reports of any problems with the lid off.
Does no one ride these bikes in a downpour or ford a water XCing exuberantly? Seems like that might be the real issue with an open airbox...
the factory holes cause turbulence? like the engineers don't do any design work. there is a reason for the # and size of the holes used by the Suzuki engineers its called air box tunning. In fact all 3 holes provide more open area than the carb opening.
where are his dyno result graphs to prove this? not on his site. not saying his kit doesn't work, its just not needed in my opinion unless and aftermarket pipe and can are used.