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Old 03-24-2013, 09:55 PM   #75106
Rob.G
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Hey does anybody know which bike the MX-Rob FCR carb for the DR comes from? I need to order a new choke for mine because it won't stay engaged.

Thanks.

Rob
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Old 03-24-2013, 10:10 PM   #75107
Adv Grifter
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Quote:
Originally Posted by Rob.G View Post
Hey does anybody know which bike the MX-Rob FCR carb for the DR comes from? I need to order a new choke for mine because it won't stay engaged.

Thanks.

Rob
I believe the FCR Carbs come from several bikes ... but mostly Yamaha 450 MX or some 450 Quad. I think it's a FCR 39 ? I have a WR250F with (I think) a FCR 39 on it. If not a 39 then maybe one number down? Dunno. But several bikes use the FCR's ... ask Rob, he will know more.
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Old 03-24-2013, 10:18 PM   #75108
ER70S-2
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Talking

Quote:
Originally Posted by Krusty ... View Post
I see some new blood here, amidst the regulars, so I thought mention the DR650SE Index. There's a link in my sigline, and in the Bike Specific Index thread that's stickied at the top of the Thumpers page. It's meant to be a resource for information about our favorite dualsport- sort of a file cabinet. I'd also like to re-invite everyone who has an experience, a link or a write-up they'd like to share to please add to our knowlege. And I'd like to sincerely thank everyone who's taken the time to contribute to what we have so far.
It would be nothing without the time and effort you've put into it, and I'm most grateful. ...
So are we.

Oops, DR pic:

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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 03-24-2013, 10:24 PM   #75109
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Quote:
Originally Posted by Rob.G View Post
Hey does anybody know which bike the MX-Rob FCR carb for the DR comes from? I need to order a new choke for mine because it won't stay engaged.

Thanks.

Rob
YFZ450 quad.

Any 39mm FCR choke should work though.
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Old 03-24-2013, 10:24 PM   #75110
Tech23
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Quote:
Originally Posted by Rob.G View Post
Hey does anybody know which bike the MX-Rob FCR carb for the DR comes from? I need to order a new choke for mine because it won't stay engaged.

Thanks.

Rob
If I recall, Robs FCR of choice is off the YFZ 450 Quad "04-09"....not the YZF MX bike.

Tech23
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Old 03-25-2013, 01:34 AM   #75111
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Quote:
Originally Posted by Krusty ... View Post
I see some new blood here, amidst the regulars, so I thought mention the DR650SE Index. There's a link in my sigline, and in the Bike Specific Index thread that's stickied at the top of the Thumpers page. It's meant to be a resource for information about our favorite dualsport- sort of a file cabinet. I'd also like to re-invite everyone who has an experience, a link or a write-up they'd like to share to please add to our knowlege. And I'd like to sincerely thank everyone who's taken the time to contribute to what we have so far. It would be nothing without the time and effort you've put into it, and I'm most grateful ...
Speaking for myself and I'm sure for many, many others: we are very grateful for your efforts, also!

Lex
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Old 03-25-2013, 06:48 AM   #75112
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Being a new blood I have reading all the topics you have posted in the bike specific thread . I have learned a lot it's much prepared thanks
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Old 03-25-2013, 07:22 AM   #75113
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Originally Posted by ER70S-2 View Post
So are we.

Oops, DR pic:

If I remember correctly from your other post and pictures of your bike, it looks like you have been busy this winter adding lots of goodies to your bike. Looks Great!
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Old 03-25-2013, 11:03 AM   #75114
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Quote:
Originally Posted by Rob.G View Post
Hey does anybody know which bike the MX-Rob FCR carb for the DR comes from? I need to order a new choke for mine because it won't stay engaged.

Thanks.

Rob
Check with Sudco or Carburetor Parts Warehouse

http://carbparts.com/
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Old 03-25-2013, 12:10 PM   #75115
ER70S-2
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Quote:
Originally Posted by LexTalionis View Post
Speaking for myself and I'm sure for many, many others: we are very grateful for your efforts, also!

Lex
Hi Lex.

Quote:
Originally Posted by gjcarving View Post
If I remember correctly from your other post and pictures of your bike, it looks like you have been busy this winter adding lots of goodies to your bike. Looks Great!
Thanks, all dressed up and nowhere to go.

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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 03-25-2013, 12:17 PM   #75116
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Quote:
Originally Posted by Rob.G View Post
Hey does anybody know which bike the MX-Rob FCR carb for the DR comes from? I need to order a new choke for mine because it won't stay engaged.

Thanks.

Rob
If your carburetor has a choke, it's not likely to be an FCR.

Regards,

Derek
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Old 03-25-2013, 12:18 PM   #75117
ER70S-2
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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 03-25-2013, 12:31 PM   #75118
RichBeBe
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Quote:
Originally Posted by motolab View Post
If your carburetor has a choke, it's not likely to be an FCR.

Regards,

Derek
I disagree with a lot you have to say, but I kept my mouth shut, but this tops it. Do you really dyno bikes? Have you ever tuned a bike with an FCR on it?
Just about every bike I have ever been around with an FCR had a choke on it. My stock WR had a choke on it, and my DR with an FCR has a choke on it.

Added: I am sure you are going to chime in about the technical difference between a choke and an enricher circuit, but for the average person they are they same in the way they work to warm a cold bike up.
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Old 03-25-2013, 01:10 PM   #75119
Rob.G
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I looked up the price of a choke for the FCR in my Outlaw 525 and it was $100!!! So if that's the case off of all the variations of the FCR, maybe I can find another bike or something where I can get the thing cheaper. Otherwise I'll just keep dealing with it as it is. It's a mild annoyance is all.

Rob
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Old 03-25-2013, 01:25 PM   #75120
ER70S-2
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Stock Vacuum Petcock in the Acerbis 5.3

Using the stock vacuum petcock with the Acerbis isn't a 'bolt and go' option.

Stock Acerbis.


I suggest changing the order that I did this project. File the flat first, if you loose interest or decide this is too much trouble, you can still use the Acerbis petcock. Once the hole is ovaled, there's no goin' back.

If your tank has a raised boss on the surface like the Acerbis 5.3, you'll need to file it flat or the rectangular o-ring on the stock petcock won't seal. The o-ring isn't very 'fat' and won't seal over the four red circles shown below. You want to be real careful here, since the o-ring is so thin, if you nick the surface with a power tool, it won't seal.

I used a hand file, it took forever and I'm happy with the result. File til my fingers hurt, watch TV, file til my fingers hurt, watch TV................................................ .. I used single file strokes, making sure the file was flat to the surface every stroke.



Petcock hole elongated for the double tube stocker. Once you commit to this point, the Acerbis petcock o-ring won't seal anymore.


Stock petcock on the left, Acerbis on the right.


Where it's going to leak.


Original debris inside new tank doesn't matter since the filing to fit added more (And why you want to rinse out your new tank before you use it). A benefit to the neutral color; it was easy to see inside the tank, all surfaces. I used hot faucet water to rinse the tank, shook it up good and drained it, three times. To get the remaining droplets out, I rubber banded a paper towel to a dowel. The neutral color made the drops sparkle, easy to blot up.


Another difference, the stock petcock is 1" taller than the Acerbis. This might be a problem since the uphill loop is now 1" higher. Note: ignore the vacuum port, which is less than 1" (a bit misleading in the photo).


The uphill loop and potential vacuum lock. When the fuel level gets low, there isn't enough head pressure to overcome the air bubble in the loop. This means the bike quits running even though you can still see gas in the tank. It's a common problem on both the IMS and Safari aftermarket tanks, some work, some don't. I haven't heard anything on the Acerbis yet.


And: the vacuum petcock is thicker where it screws to the tank. I don't like the idea that there aren't threaded metal inserts in the tank, the mounting screws thread into the plastic. My point is, now the provided 2 screws are too short for a good secure bite in the plastic. OCD, maybe. The provided screws are 3/4", I bought a pair 1" long (size 12x1 SAE stainless is just a bit larger O.D. [.17mm] than the 5mm that were supplied).


Before:



Reason, low profile front tire:



After:

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2004 DR650: 62,400 miles
2013 WR250R

SUZUKI DR650SE INFORMATION INDEX
Quote:
Originally Posted by Threewheelbonnie View Post
"BTW, I don't do style. It's a dirt bike, not some girlie dress-up thing." -

ER70S-2 screwed with this post 04-02-2013 at 03:15 PM
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