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Old 04-02-2012, 08:30 PM   #62341
Putzy
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Joined: Jan 2012
Location: Cocoa Beach, FL
Oddometer: 61
Big drop in fuel economy post jet kit install

So, i just finished all the mods I wanted to do on my 2000 DR that I picked up in January. last one was exhaust, intake, and jet kit. Got a GSXR pipe, short non-titanium version, along with Jesse's mid-pipe and stock header. Have K&N filter, with top of air box removed. Got dynojet kit from jesse, and installed 160 jet. Fuel screw was about 2 turns out, which i changed to 2.25 before leaving work today as it was running a slight bit rough. 2.25 was better.

My setup before all this was stock carb with aftermarket fuel screw (not sure how many turns out it was), stock airbox and filter, stock header, unknown aftermarket slip on with integral mid-pipe.

I ran out of fuel on primary after 70 miles (with screw 2 turns out for 65 of those miles). Really surprised me as before i was getting 95-105 on primary. Switched to reserve and found nearest gas station. Filled up and it was 72 miles on 2.5 gallons, filled up to the bottom of the filler neck. Putting mileage around 29 mpg. I was getting around 40 mph before. This is pretty much all slab right now, varrying from 35 to 60 mph, commuting to work.

So i figured i would lose a bit of mileage, but not a 30% drop. Is this normal, or if not, any ideas how to improve this? I see people talking about mid to high 40s on here, so figuring something ain't right.

Thanks much.
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Old 04-02-2012, 09:03 PM   #62342
ER70S-2
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Depending on your riding style (bouncing off the rev limiter?), that's still awful. Since we spend most of our time on the needle circuit, I'd drop the needle one at a time until it ran like doo doo; then back-up one. If you're on the rev limiter, I'd drop the main jet one at a time until I noticed a drop in rideability.
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"BTW, I don't do style. It's a dirt bike, not some girlie dress-up thing." -
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Old 04-02-2012, 09:28 PM   #62343
sagedrifter
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Joined: Apr 2006
Location: Jacksonville, Alabama
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Quote:
Originally Posted by Putzy View Post
So, i just finished all the mods I wanted to do on my 2000 DR that I picked up in January. last one was exhaust, intake, and jet kit. Got a GSXR pipe, short non-titanium version, along with Jesse's mid-pipe and stock header. Have K&N filter, with top of air box removed. Got dynojet kit from jesse, and installed 160 jet. Fuel screw was about 2 turns out, which i changed to 2.25 before leaving work today as it was running a slight bit rough. 2.25 was better.

My setup before all this was stock carb with aftermarket fuel screw (not sure how many turns out it was), stock airbox and filter, stock header, unknown aftermarket slip on with integral mid-pipe.

I ran out of fuel on primary after 70 miles (with screw 2 turns out for 65 of those miles). Really surprised me as before i was getting 95-105 on primary. Switched to reserve and found nearest gas station. Filled up and it was 72 miles on 2.5 gallons, filled up to the bottom of the filler neck. Putting mileage around 29 mpg. I was getting around 40 mph before. This is pretty much all slab right now, varrying from 35 to 60 mph, commuting to work.

So i figured i would lose a bit of mileage, but not a 30% drop. Is this normal, or if not, any ideas how to improve this? I see people talking about mid to high 40s on here, so figuring something ain't right.

Thanks much.
Its probably not the jet kit, you have other issues. I would start with replacing o-rings and setting the float. Double check the needle position. I expect at least 45 mpg out of a jetted BST and I ride hard and usually with luggage.

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Old 04-02-2012, 10:08 PM   #62344
rockydrxrvr
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Joined: May 2006
Location: Oregon Mountains, Great Riding,Not too cold.
Oddometer: 149
past post on mileage problem

I did the mods just about like yours, and guess what, terrible mileage.

read on.

Originally Posted by rockydrxrvr
Well, if 36 mpg. is okay, down from 50 mpg,...then jet kit knock yourself out. I was sorry I did it. At todays gas prices, and long ride in Baja Outback, I was the fuel worry problem child riding with KLRs and BMWs in remote areas. I love that big single torque just as stock gave me, But I'm an old fart. On my newer DR.....50 mpg, and only drilled out the idle jet lead plug and enrichened that circuit.


Been there done that

My 2006 with just the plug removal, and a 4 gallon tank......close to 200 miles before fuel panic.
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Old 04-02-2012, 11:23 PM   #62345
LexTalionis
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Location: San Jose, CA
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Request

That is a beautiful commute, you're very lucky, I'm jealous.

Can you post a pic of that commute in January with your DR in the foreground like in the bottom pic?

Lex


Quote:
Originally Posted by bross View Post
You guys in the states have nothing to complain about, try living in Canada or BC particularly where we have gov't insurance. I pay $500 for 6 months, liability only, no collision. And I've been driving for 35 years, no accidents, no speeding tickets. That's for the DR, my CBF is even more because they base the rates on displacement. Only bike that is even close to being reasonable is my wife's DR200, but that's still close $300 for 6 months.

I guess that's the price we pay to have this as our daily commute...



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Old 04-02-2012, 11:34 PM   #62346
ER70S-2
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Quote:
Originally Posted by LexTalionis View Post
That is a beautiful commute, you're very lucky, I'm jealous.

Can you post a pic of that commute in January with your DR in the foreground like in the bottom pic?

Lex
Yeah, like this; well except for the missing DR.

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Quote:
Originally Posted by Threewheelbonnie View Post
"BTW, I don't do style. It's a dirt bike, not some girlie dress-up thing." -
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Old 04-02-2012, 11:55 PM   #62347
LexTalionis
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Location: San Jose, CA
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Corrections

Quote:
Originally Posted by Albie View Post
Actually, you're wrong. Recommended maintenance intervals are similar. Suzuki recommends every 4500 miles, KTM recommends 6K for oil changes. I do 3K for both cause oil is relatively cheap. An oil change is an oil change, while the 690 does have one more oil filter it certainly doesn't take 3 times longer to change it. Valve adjustment intervals for the DR are 7500 miles, for the KTM 6K , and I can do a valve check much quicker on the 690 then I can the DR because access is much easier.
Ahhh, Albie,

My friend’s experience differs from yours. His is a 2007 KTM 690SM.

“KTM recommends 6K for oil changes.”
He said his manual specifies oil changes at 3,000 miles.

“An oil change is an oil change, while the 690 does have one more oil filter it certainly doesn't take 3 times longer to change it.”
He says, in addition to two oil filters, he cleans two screens. Close enough to three times as long when you include cleaning and reinstalling the screens.

Now, where’s that laughing face? Oh yeah, right here:

Regarding valve clearance adjustment: Since his KTM 690SM has shim adjustment, and one clearance was tight last time, he had to remove a rocker arm shaft to raise the rocker arm to get at the shim. Then, after seeing what size the shim was, he had to call the local KTM dealer to see if there was the next thinner shim in stock, which there was. So he jumps on his other bike, rides to the KTM dealer, buys the shim, returns home, installs the shim, reassembles the bike. If he had to order the shim, that would have added days to his valve adjustment.

I guarantee you it took him at least three times as long to do his valve adjustment as me, who never left the garage and didn't have to use the phone.

You’ll also note there were costs for fuel and for the shim, for him. No cost for me when I did the work on my DR, except for the beer afterward.

I'll re-use another of you quotes here: ”Actually, you're wrong.” Hmmm…. Need another laughing face to go with that:

WTH, here’s another two for ya:

Regarding the valve lash inspection interval, my friend checks his at 5k miles, apparently far sooner than KTM recommends, which he says is 6,200 miles. I thought 5k was the recommended interval, I only know my friend's experience. I check my valves at 14k miles intervals. Nearly 3x difference, for us.

And: I’m surprised you have any problem accessing the DR’s valve clearance adjustment, I don’t. Use ProCycle's feeler gauges and valve adjustment tool, they make the work easy.

Lex
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Old 04-03-2012, 12:00 AM   #62348
LexTalionis
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Location: San Jose, CA
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You need a riding snowblower!

Actually, I sympathize with you, I previously lived in Minnesota (Manysnowta). Being the eldest son, I did all the snow removal from the family driveway and sidewalks - my father saw no need for fancy (expensive) equipment that would only take up garage space for 2/3 of the year, when the snow shovel could be hung on the wall.

That is a LOT of snow!

Lex

Quote:
Originally Posted by ER70S-2 View Post
Yeah, like this; well except for the missing DR.

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Old 04-03-2012, 01:24 AM   #62349
heirhead
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Joined: Jan 2009
Location: On the water in SoCal
Oddometer: 441
Insurance

Hello,

Check out GMAC which was National General. They had a good price with an add in Rider Magazine.
Tell them your in Rider Club through Rider Mag. and they will give you quote. They are the best I have found. Been with them over 20 yrs though. My friends have all switched over the years. Great prices. If anybody does check please respond with results.

GMAC Ins. 1-800-325-1190 in St. Louis

Thanks.

Heirhead

heirhead screwed with this post 04-03-2012 at 01:36 AM Reason: punkuation
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Old 04-03-2012, 06:08 AM   #62350
ADV8
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Location: North of Sydney.
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Quote:
Originally Posted by LexTalionis View Post
You need a riding snowblower!

Lex
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Old 04-03-2012, 06:48 AM   #62351
kobukan
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Joined: Dec 2009
Location: Saco ME
Oddometer: 1,698
I average 50 mpg on both DR650's.
The 2002 is completely stock.
The 2003 has a Dyno-jet kit installed, airbox mod, stock exhaust.
Maybe you have other issues?

Quote:
Originally Posted by Putzy View Post
So, i just finished all the mods I wanted to do on my 2000 DR that I picked up in January. last one was exhaust, intake, and jet kit. Got a GSXR pipe, short non-titanium version, along with Jesse's mid-pipe and stock header. Have K&N filter, with top of air box removed. Got dynojet kit from jesse, and installed 160 jet. Fuel screw was about 2 turns out, which i changed to 2.25 before leaving work today as it was running a slight bit rough. 2.25 was better.

My setup before all this was stock carb with aftermarket fuel screw (not sure how many turns out it was), stock airbox and filter, stock header, unknown aftermarket slip on with integral mid-pipe.

I ran out of fuel on primary after 70 miles (with screw 2 turns out for 65 of those miles). Really surprised me as before i was getting 95-105 on primary. Switched to reserve and found nearest gas station. Filled up and it was 72 miles on 2.5 gallons, filled up to the bottom of the filler neck. Putting mileage around 29 mpg. I was getting around 40 mph before. This is pretty much all slab right now, varrying from 35 to 60 mph, commuting to work.

So i figured i would lose a bit of mileage, but not a 30% drop. Is this normal, or if not, any ideas how to improve this? I see people talking about mid to high 40s on here, so figuring something ain't right.

Thanks much.
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Old 04-03-2012, 07:07 AM   #62352
TrophyHunter
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Joined: Aug 2009
Location: San Diego
Oddometer: 2,046
Quote:
Originally Posted by ungeheuer View Post
My goal was to assemble a better (if not so slick to behold) DS ride than the XT for less than XT money. And just quietly...... I'm pretty bloody happy with the result .
As you should be. Minus the nice BC fairing/windscreen & just an IMS for fuel, mine has much the same equipment - just not as good looking as yours.
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Old 04-03-2012, 09:04 AM   #62353
Albie
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Location: NWA
Oddometer: 9,055
Quote:
Originally Posted by LexTalionis View Post
Ahhh, Albie,

My friend’s experience differs from yours. His is a 2007 KTM 690SM.

“KTM recommends 6K for oil changes.”
He said his manual specifies oil changes at 3,000 miles.

“An oil change is an oil change, while the 690 does have one more oil filter it certainly doesn't take 3 times longer to change it.”
He says, in addition to two oil filters, he cleans two screens. Close enough to three times as long when you include cleaning and reinstalling the screens.

Now, where’s that laughing face? Oh yeah, right here:

Regarding valve clearance adjustment: Since his KTM 690SM has shim adjustment, and one clearance was tight last time, he had to remove a rocker arm shaft to raise the rocker arm to get at the shim. Then, after seeing what size the shim was, he had to call the local KTM dealer to see if there was the next thinner shim in stock, which there was. So he jumps on his other bike, rides to the KTM dealer, buys the shim, returns home, installs the shim, reassembles the bike. If he had to order the shim, that would have added days to his valve adjustment.

I guarantee you it took him at least three times as long to do his valve adjustment as me, who never left the garage and didn't have to use the phone.

You’ll also note there were costs for fuel and for the shim, for him. No cost for me when I did the work on my DR, except for the beer afterward.

I'll re-use another of you quotes here: ”Actually, you're wrong.” Hmmm…. Need another laughing face to go with that:

WTH, here’s another two for ya:

Regarding the valve lash inspection interval, my friend checks his at 5k miles, apparently far sooner than KTM recommends, which he says is 6,200 miles. I thought 5k was the recommended interval, I only know my friend's experience. I check my valves at 14k miles intervals. Nearly 3x difference, for us.

And: I’m surprised you have any problem accessing the DR’s valve clearance adjustment, I don’t. Use ProCycle's feeler gauges and valve adjustment tool, they make the work easy.

Lex
Can't comment on a 07 690 SM, but then we're talking about a 690 Enduro which the manual states 6K miles per oil change. Which as I said is a moot point I change both the same intervals. In fact just did a change yesterday on the 690 and it was around 30 minutes including the warm up time before draining the oil, and the warm up time after the change for the final level check which is 10 minutes of that 30. A lot of that time was also just waiting for all the oil to drain. I can pop out the screens, hit em with a blast of air and pop them back in while the oil is still dripping out of the drain hole. Your buddies ineptitude as a mechanic hardly reflects on the bike. Here's your smilie...

Well gee, ya got me there, I guess if I do have to change the shim it's gonna take me longer if I don't have it in my kit. And of course at $1.75 I'm sure most DR owners would balk at such a huge cost in maintenance. Oh look, here's that smilie again.

While you have a buddy to compare with, I ACTUALLY have both bikes that I ride and maintain. That's how I KNOW you're wrong. New smilie for ya.
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Old 04-03-2012, 09:13 AM   #62354
bross
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Joined: Nov 2005
Location: Osoyoos, BC
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Quote:
Originally Posted by LexTalionis View Post
That is a beautiful commute, you're very lucky, I'm jealous.

Can you post a pic of that commute in January with your DR in the foreground like in the bottom pic?

Lex




Quote:
Originally Posted by ER70S-2 View Post
Yeah, like this; well except for the missing DR.

Pretty much.



On a more positive note, it's supposed to hit 18C (64F) next week, the driveway's clear, time to insure the bikes!
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Old 04-03-2012, 09:35 AM   #62355
procycle
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Location: Center of the DR650 universe
Oddometer: 2,194
Quote:
Originally Posted by Putzy View Post
So, i just finished all the mods I wanted to do on my 2000 DR that I picked up in January. last one was exhaust, intake, and jet kit. Got a GSXR pipe, short non-titanium version, along with Jesse's mid-pipe and stock header. Have K&N filter, with top of air box removed. Got dynojet kit from jesse, and installed 160 jet. Fuel screw was about 2 turns out, which i changed to 2.25 before leaving work today as it was running a slight bit rough. 2.25 was better.

My setup before all this was stock carb with aftermarket fuel screw (not sure how many turns out it was), stock airbox and filter, stock header, unknown aftermarket slip on with integral mid-pipe.

I ran out of fuel on primary after 70 miles (with screw 2 turns out for 65 of those miles). Really surprised me as before i was getting 95-105 on primary. Switched to reserve and found nearest gas station. Filled up and it was 72 miles on 2.5 gallons, filled up to the bottom of the filler neck. Putting mileage around 29 mpg. I was getting around 40 mph before. This is pretty much all slab right now, varrying from 35 to 60 mph, commuting to work.

So i figured i would lose a bit of mileage, but not a 30% drop. Is this normal, or if not, any ideas how to improve this? I see people talking about mid to high 40s on here, so figuring something ain't right.

Thanks much.
A properly set up jet kit installation will return about the same fuel economy as stock. Once installed the setup still has to be tuned. First, the idle mixture screw should be turned in until the idle speed just barely starts to drop. Second, the correct needle height should be determined. The best way to do this was mentioned above - lower the needle (raise the clip) one position at a time until it runs poorly, then raise the needle up one position from there.

But wait... Before you try to do any tuning replace the float orings and maybe also the float needle. Getting only 29 mpg has to be more than just a jetting setup problem.
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