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Old 05-25-2013, 04:05 PM   #77026
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, 04:11 PM   #77027
rpet
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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, 04:38 PM   #77028
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, 05:29 PM   #77029
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, 05:38 PM   #77030
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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, 06:06 PM   #77031
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Quote:
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, 06:10 PM   #77032
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, 06:17 PM   #77033
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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Ride The West - OBDR, CDR & western TAT - July 2013
Instagram with plenty of bike pics.
Read my homie's underway Africa trip RR - Round Africa with a Surfboard
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Old 05-25-2013, 06:37 PM   #77034
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, 07:00 PM   #77035
dresda
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Location: South Eastern Shore of Ontario
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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, 08:18 PM   #77036
Foot dragger
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Quote:
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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Old 05-25-2013, 08:22 PM   #77037
TUCKERS
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Quote:
Originally Posted by Adv Grifter View Post
K & N are common and in use world wide on Bikes, Cars and big trucks. I'm sure they have thousands of loyal customers who have had good luck with the product. Some here rave about them ... so obviously not everyone has had problems ... and they certainly flow a lot of air.

I'm happy with Foam filters. 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. Now why is that?

Some K & N filters are sort of a "One Size Fits All" item. So perhaps in some cases that is allowing dirt ingress? I have no idea why dirt gets into them ... but I've seen it with my own eyes. The other thing is poor owner maintenance. Especially off road, a K & N will require more attention than a good Foam Air Filter. Not a good travel item, IMHO.

The Suzuki DR650 OEM foam air filter is well made, filters perfectly and strong. But it's just a but restrictive to air flow. This is NOT a big deal.

Many here have had good luck with Twin-Air foam filters. UNI Filter make a good Foam filter for the DR650 too. I've been running Twin-Air filters on my DR for nearly 50,000 miles. They filter very well ... NO DIRT gets in Carb if properly oiled and installed.

Take care of your Twin Air filters ... good for 20,000 miles of hard use. Should cover your S. America ride. Handle them with care, DO NOT use Gasoline to clean them. (Diesel is OK but rinse well with soap and water, never squeeze hard or wring out)

Off Road In S. America
I'm sure with practice your wife will become a better off road rider. Deep sand is tough, even for experts. Baby Steps. You guys will encounter rough sections, but most dirt roads are in decent condition. More and more is paved.

You probably should skip the Salar de Uyuni (Salt lake in Bolivia), but most everything else I'm thinking she can handle ... if carrying a light load on a well lowered bike and well set up bike.

When practicing off road remind your wife of the following off road riding techniques:
1. VISION: Look WELL OUT AHEAD, at least 30 yds. ahead. This will have a sort of miracle affect on her control and confidence. Look where you want to go ... and you will go there. Never look down just ahead of front tire. (bad!)

STAND UP: She will need to learn to ride the bike standing ... and do everything from that position. Not hard, just takes seat time. Baby steps.

RELAX ... your grip on the bars, steer with feet and knees on tank. RELAX.

BREATH: Many novice riders tense up off road ... and they stop breathing!
really true! If you tense up and hold your breath
(many do it unconsciously) ... you will tire quickly and get ARM PUMP.

POSITION: scoot back on seat in soft conditions, use a bit more throttle to keep bike going straight.

Practice Practice Practice!!!
She can ride really well. She's got 12 years experience, 160,000 miles, many different bikes. A few trips from San Felipe to Alfonsina's. Big Bear, Baja, Mexico, Top of the World Highway, Dust to Dawson and etc. Race schools, Track Days, CHP riding course, MSF and etc. She just doesn't ENJOY soft surface riding. After Gonzaga Bay she said she's not interested anymore as it's supposed to be fun and she's not having any!
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Old 05-25-2013, 08:31 PM   #77038
Foot dragger
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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?
Its more a matter of how much time and money you want to spend on an econo box bike,mine runs fine stock so why mess with it? So many bikes will smoke a DR badly rather the DR is stock or full modified.

If you want a fast bike with great response they are readily for sale,most even handle good and have good suspension,it IS 2013 after all.
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Old 05-25-2013, 10:40 PM   #77039
NordieBoy
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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?
The whole point of the flat slide carbs is they are a lot smoother in the lower rev range and have better response down low,
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Old 05-26-2013, 01:20 AM   #77040
BergDonk
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Quote:
Originally Posted by NordieBoy View Post
The whole point of the flat slide carbs is they are a lot smoother in the lower rev range and have better response down low,
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.


A former DR owner rode mine today and couldn't stop drooling. Offered to swap me his GS1200 there and then, sort of.
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