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Old 05-25-2013, 01:00 PM   #77026
motolab
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Quote:
Originally Posted by Adv Grifter View Post
and they certainly flow a lot of air.
I can think of at least two cases where a K&N drop-in filter flows less air than stock.
Quote:
If there was something better the Japanese OEM's would be using something different on their Race bikes. NONE are using K & N ... ALL are using oiled foam air filters .. and have been for 40 years.
That may be true for off-road racing (which is of course what's relevant to this thread), but for road racing it's not.

Regards,

Derek
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Old 05-25-2013, 02:59 PM   #77027
Albie
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Originally Posted by TUCKERS View Post
So, K&N filters are no good whatsoever?

Should I go back to OEM or use something else?

No dirt riding.

Trip to Tierra Del Fuego planned, will try to find the best road surface possible as the Mrs Tucker doesn't 'enjoy' soft surface.
I don't mind K&N's for street riding, in fact I have one for my 690 when I motard it, but I don't want them when it comes to any off road riding.
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Albie screwed with this post 05-25-2013 at 03:12 PM
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Old 05-25-2013, 03:09 PM   #77028
Albie
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Originally Posted by Foot dragger View Post
Smoother then stock? My bone stock DR will climb anything its pointed at as smoothly as an electric motor,refuses to stall and runs the same from 10,000' to sea level. The plug has never shown a lean condition,it gets 50 mpg most all the time. I dont think I'll mess with it.

Its almost like the factory engineers tuned the airbox/exhaust/carb to all work together as a package and get the best happy medium for many uses.

A bike this big and tank like really doesnt need to go faster in the dirt.
My buddys DR that's stock now had a FCR with all the MX Rob tricks and it definitely ran rougher then the stock set up. He only had it on his bike for like a month before he went back. He felt the tiny bit of advantage the FCR gave him didn't offset the annoying rough ride.

At the end of the day, no matter how much go faster aftermarket stuff I pile on my DR it's not gonna come close to touching my 690, so why even bother? I am more then happy with my DR set up the way it as ATM. I am so glad the PO was the one who dumped all the money into the bike and not me!
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Old 05-25-2013, 04:55 PM   #77029
Mambo Dave
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Quote:
Originally Posted by Albie View Post
My buddys DR that's stock now had a FCR with all the MX Rob tricks and it definitely ran rougher then the stock set up. He only had it on his bike for like a month before he went back. He felt the tiny bit of advantage the FCR gave him didn't offset the annoying rough ride.

At the end of the day, no matter how much go faster aftermarket stuff I pile on my DR it's not gonna come close to touching my 690, so why even bother? I am more then happy with my DR set up the way it as ATM. I am so glad the PO was the one who dumped all the money into the bike and not me!
This is an interesting perspective you guys are describing. I've always heard / read the other carbs were so much better than the stock DR650 carb... is there a general agreement that no aftermarket carb runs / delivers as smoothly, and that the hoopla is really all about power delivery instead?
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Old 05-25-2013, 05:05 PM   #77030
DR Steve
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Quote:
Originally Posted by Mambo Dave View Post
This is an interesting perspective you guys are describing. I've always heard / read the other carbs were so much better than the stock DR650 carb... is there a general agreement that no aftermarket carb runs / delivers as smoothly, and that the hoopla is really all about power delivery instead?
No, what it means is that most riders can't tune the BST properly, let alone anything more complex.

The properly tuned BST does run well on the DR, but there are other options that are even better.
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Old 05-25-2013, 05:11 PM   #77031
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Originally Posted by rpet View Post
Well, after taking a look more closely at my Vapor, the bike was actually idling more around 1250 today. Upping the idle screw to 1500 or so, and backing the fuel screw back to barely above 1 turn out seems to have lessened the stalling-while-stopping issue.

Checking fuel height with a rubber tube was inconclusive. It could have been 1.5mm or more like 3-4mm. It was just too fiddly and fuzzy of a test for me to be confident in what I was seeing.
I got the carb apart finally, and my float height was low. Using the slowly-rotate-to-parallel technique, the float was not parallel - more like a good 1.5-2mm low. I adjusted the tab to get the float parallel.

O-rings all look good. Nearly zero signs of crud or any mess anywhere in the carb that I could see. I Squirted in some carb cleaner in various orifices. I swapped stock needle for 6F19 at 3rd clip position, and closed her back up with new stainless cap screws all around (had to cut down the 14mm length screws to fit the throttle cable plate).

I should have her on the road tomorrow, and I trust I will now need to use the enrichening circuit knob to start the bike.
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Old 05-25-2013, 05:38 PM   #77032
Adv Grifter
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Quote:
Originally Posted by DR Steve View Post
No, what it means is that most riders can't tune the BST properly, let alone anything more complex.

The properly tuned BST does run well on the DR, but there are other options that are even better.
Dead on Steve.
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Old 05-25-2013, 06:29 PM   #77033
Emmbeedee
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These are not mine; I have no affiliation with the seller, but he says he won't ship to Canada so some lucky soul down in the US of A should get them: A pair of white side covers in good shape on eBay

What a strange category to list in: Collectibles>Transportation>Motorcycles>Enthusiast Memorabilia>Other
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Old 05-25-2013, 06:38 PM   #77034
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Quote:
Originally Posted by Mambo Dave View Post
This is an interesting perspective you guys are describing. I've always heard / read the other carbs were so much better than the stock DR650 carb... is there a general agreement that no aftermarket carb runs / delivers as smoothly, and that the hoopla is really all about power delivery instead?
I went from a well tuned bst40 to a tm40. I won't go back. Only thing I don't like is the clacking the slide makes when the carbs warming up. More throttle response, easy to tune, same to better mpg
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Old 05-25-2013, 07:06 PM   #77035
rpet
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Originally Posted by TrophyHunter View Post
There's also a debate in the law office I work in whether the period is before or after the quotation marks.
Generally, the period and other punctuation is inside the quotes in the USA and outside the quotation marks in Britain. ;0
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Old 05-25-2013, 07:10 PM   #77036
Albie
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Quote:
Originally Posted by DR Steve View Post
No, what it means is that most riders can't tune the BST properly, let alone anything more complex.

The properly tuned BST does run well on the DR, but there are other options that are even better.
Actually, I've found FCR's to be the easiest to tune, maybe because the majority of the bikes I've owned have/had them. Although the BST is simple enough.
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Old 05-25-2013, 07:17 PM   #77037
rpet
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Quote:
Originally Posted by Mambo Dave View Post
This is an interesting perspective you guys are describing. I've always heard / read the other carbs were so much better than the stock DR650 carb... is there a general agreement that no aftermarket carb runs / delivers as smoothly, and that the hoopla is really all about power delivery instead?
BST feels fine on my bike.

As far as I can tell, switching to FCR/TM may deliver quicker power delivery and an extra hp or two. It's up to you to decide if that is worth ~$400.
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Old 05-25-2013, 07:37 PM   #77038
acesandeights
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Quote:
Originally Posted by rpet View Post
Generally, the period and other punctuation is inside the quotes in the USA and outside the quotation marks in Britain. ;0
Not the only opinion

http://www.grammarbook.com/punctuation/quotes.asp
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Old 05-25-2013, 08:00 PM   #77039
dresda
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Quote:
Originally Posted by TUCKERS View Post
NO! We have two DR's. The Mrs is an ADVRider! She's done 160,000 miles on BMW's since 2000.
Not surprising, I can't imagine going more than a couple miles 2-up on a DR! Mind you Emmbeedee is 6'5" so I only get enough space back there to sit on about 1 inch of seat and I used the carrier to stop from sliding off the back. I'm glad we only had to go a short distance to the UHaul depot after my countershaft oil seal blew out!


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Old 05-25-2013, 09:18 PM   #77040
Foot dragger
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Originally Posted by BergDonk View Post
Way smoother.

The best you've ridden, is the best you know!
Well Yeah true enough,but Ive had probably 40 bikes in the last 35 years or so and this DR runs as smooth as a good watch.
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