the DR650 thread

[Putzy]

Originally Posted by Adv Grifter

What about the Needle? You haven't mentioned it at all. Most important element. Get the Dyno jet needle: #3138.002 (US model)
If you still have the stock needle ... then THERE is your problem.

When you say "air box top removed" ?? How did you do that? Normally, a section of the air box top is cut. I would follow the "Jesse template". It works. If you have, for some unknown reason, removed the air box side cover ... put it back on.

I'm not a K&N fan but I doubt that's your issue.

Try this:
Main: 155 (DJ jet)
Needle: 3rd clip down from top
Pilot fuel/air screw: One turn out.

Having the Pilot fuel/air screw out too far wastes A LOT of fuel. Turn it IN and lean it out. Sure, it will run a bit rough at idle but your fuel economy will be MUCH BETTER.

Good luck!

Thanks for all the tips guys. Just to clarify, I have the DJ needle set pet Jesse's instructions. I started with fuel screw out 1 turn, but would not idle right. So moved it out to two turns, still idled rough, do now its at 2 1/4 turns and idles nice. Airbox top was cut out per Jesse's template.

Guess I will start with new o rings and have a look at the petcock.

Thanks.

Sent from my SAMSUNG-SGH-I897 using Tapatalk

[GillaFunk]

Originally Posted by Dravintoad

After jetting and exhaust, I'm still getting ~ 48-50 mpg. depending on how hard my right hand twists.

I dont think I ride that hard (in the street). High 30's with Mefo DS tires. I did notice a 4mpg jump when I went from Mefo's to Pirelli Scorpion Trail street slicks. On the freeway, 60-70mph, avg. I do have a windscreen on the front, maybe that's doing it.

[Olas]

Originally Posted by ER70S-2

I didn't know about Procycle or ADVrider when I did this. That Procycle piece looks very nice.

I didn't want my rear tire throwing crap on my jacket so I left most of Suzuki's parts on. Besides the taillight shown above, I recessed my plate light into the fender, trimmed the bottom edge off the fender and removed the plate bracket. A solid piece of alum is cut to the size of the plate for support.

That's weird: I smudged my lisc plate in Smugmug and now it's bigger than the second pic??



How I recessed the plate light. You can see the alum piece at the far left of the pic, really dirty.

I like this. So you just modified the stock mud flap to what you have there? And that is a drz250 taillight?

[malokam]

Originally Posted by ER70S-2

]

What the FISH is that exhaust??

FMF? Home made look alike ? Modded FMF??

[imprezagm4]

So.... um.... what happens if after you remove the upper chain roller.... you thread the set screw in too much... and it drops into the frame.

[ER70S-2]

Originally Posted by Olas

I like this. So you just modified the stock mud flap to what you have there?

Originally Posted by Olas

And that is a drz250 taillight?

Maybe.............Procycle calls it a DR250, Kientec calls it a DRZ250. If you buy from either of those, you'll get the correct light. If you want to order from your local dealer, I don't remember which I ordered 8 years ago. BikeBandit is being difficult or I'd give you a better answer.

[ER70S-2]

Originally Posted by malokam

What the FISH is that exhaust??

FMF? Home made look alike ? Modded FMF??

Originally Posted by ER70S-2

It's a much older FMF MegaMax for four strokes, circa 2004. I bought it because I like the disc control concept: less discs more quiet, more discs, louder. I just removed discs until it was quiet enough for me. Again, long before I knew about the GSXR and other options. The only reasons for leaving the stocker: its height and its weight.

I made a mid-pipe back then, and it was really ugly; notch, bend, weld, notch, bend, weld; etc. So very glad the side cover hid it.

[joefromsf]

I know the IMS petcocks don't have a great reputation, but are they really POS? My buddy and I were both running our DRs on a long route in Death Valley and carrying an extra gallon of fuel each so we could run our IMS tanks until hitting reserve and then down to empty to find out what our ranges were.

Well we both got a surprise when neither of our bikes would start when we first ran out of fuel and switched to reserve. We could see the fuel in the tank right at the top level of the petcock. We ended up having to add our spare fuel to continue the ride and so we didn't learn the real range of our bikes with IMS tanks.

Any ideas on how to fix short of replacing the IMS petcock? Is there a separate filter on the petcock for reserve that might be clogged?

If we hadn't been carrying spare fuel, could we have modified the IMS petcock in the field to get us back to camp?

[ER70S-2]

Originally Posted by Olas

I like this. And that is a drz250 taillight?

Here ya go, it's on the 2005 DRZ250.

http://www.ronayers.com/Fiche/TypeID...MBINATION_LAMP

[Motodeficient]

Yep, looks like its from the 01-07 DRZ 250

[ER70S-2]

Originally Posted by joefromsf

I know the IMS petcocks don't have a great reputation, but are they really POS? My buddy and I were both running our DRs on a long route in Death Valley and carrying an extra gallon of fuel each so we could run our IMS tanks until hitting reserve and then down to empty to find out what our ranges were.

Well we both got a surprise when neither of our bikes would start when we first ran out of fuel and switched to reserve. We could see the fuel in the tank right at the top level of the petcock. We ended up having to add our spare fuel to continue the ride and so we didn't learn the real range of our bikes with IMS tanks.

Any ideas on how to fix short of replacing the IMS petcock? Is there a separate filter on the petcock for reserve that might be clogged?

If we hadn't been carrying spare fuel, could we have modified the IMS petcock in the field to get us back to camp?

This happens regularly, I think it's the up-hill loop in the fuel line, something I learned from my snowmobile. fwiw: I still have my stock tank.

Usual routing:



Guys have been rotating the carb inlet 90* to the left: 9:00 o'clock. I think Tim came up with a better idea:



More info and pics in Krusty's DR650 INDEX:
http://www.advrider.com/forums/showthread.php?t=635647

[LGDH]

Originally Posted by imprezagm4

So.... um.... what happens if after you remove the upper chain roller.... you thread the set screw in too much... and it drops into the frame.

I guess it rattles around in the frame.
I know when I do mine, (with a set screw) i'll centre punch the very top thread on the side, with the hex key in the hole, some thread sealer, and screw it in. That'll stop it from falling in and give it a little bite. No bolt heads to worry about.

[DirtySumo]

Originally Posted by LGDH

I guess it rattles around in the frame.
I know when I do mine, (with a set screw) i'll centre punch the very top thread on the side, with the hex key in the hole, some thread sealer, and screw it in. That'll stop it from falling in and give it a little bite. No bolt heads to worry about.

+1
Or, like myself: Being an airplane guy. . .light is better. So, a dab of ATV on a fingertip. I'm sure i get maybe .00000000000002 more mpg.

edit: yeah yeah yeah. . . .ok: Smear the atv from finger to hole. Shhhheeeese.

[Dravintoad]

Originally Posted by GillaFunk

I dont think I ride that hard (in the street). High 30's with Mefo DS tires. I did notice a 4mpg jump when I went from Mefo's to Pirelli Scorpion Trail street slicks. On the freeway, 60-70mph, avg. I do have a windscreen on the front, maybe that's doing it.

High 30's? Your thumbnail/website states the average is about 45. I ride mostly street commuting to work and back and I also have a windscreen (screens for bikes) but it may look like you have a bit more weight strapped to yours than I do mine, plus the fuel tank and whatnot.
I'm running the Shinko 705's, keep mine luggage free when possible and i only weigh around 165, so that may be the difference between the two of us.
I guess my point was even after I jetted it, added an aftermarket exhaust and re-jetted. I got a lot more fun-factor and barely lost any mpg's for it, but an avg. of 45 ain't too bad either.

[Nibis]

Originally Posted by joefromsf

I know the IMS petcocks don't have a great reputation, but are they really POS? My buddy and I were both running our DRs on a long route in Death Valley and carrying an extra gallon of fuel each so we could run our IMS tanks until hitting reserve and then down to empty to find out what our ranges were.

Well we both got a surprise when neither of our bikes would start when we first ran out of fuel and switched to reserve. We could see the fuel in the tank right at the top level of the petcock. We ended up having to add our spare fuel to continue the ride and so we didn't learn the real range of our bikes with IMS tanks.

Any ideas on how to fix short of replacing the IMS petcock? Is there a separate filter on the petcock for reserve that might be clogged?

If we hadn't been carrying spare fuel, could we have modified the IMS petcock in the field to get us back to camp?

Mine ran out on the highway the other day, was able to reach down and switch to reserve, bike sputtered a bit then came back to life. I have a TM40 carb though, maybe that makes a difference.

The screen for the fuel straw (on position) and for reserve is one and the same. You can use a flashlight to look in your tank and see it. I doubt it's clogged, try running your bike on reserve with a full tank