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Edelbrock Carb

19 posts in this topic

OK, is the Edelbrock carb for the XR650L worth the money or is a properly jetted stock carb good enough? I guess I would just like to know if you would notice a big improvement in performance? I have changed the pipe and air cleaner and jetted the carb and all seems well, but one is allways wondering if things could be better.:applause:

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I don't know about the edelbrock but the mikuni I put on my L for half that made a nice improvement over the cheap kehin that came with the bike. Throttle responce is way better,and it starts first thing in the cold.

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I tried the Mikuni kit from White Brothers and had great performance on top, but not really responsive right off idle. The Edelbrock pumper smooths out the low end but and is right up there with the Mikuni for the top end. If you want a good price on my old Mikuni shoot me a pm.

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I had the Mikuni TM on my L also. I took it off for the Edelbrock and am glad I did. The flatslide had really nice throttle response but I could not get rid of a flat spot in the lower midrange and it drove me crazy....crazy enough to buy the pumper. Another 'problem' with the Mikuni is after a while the idle screw will leave a detent in the slide and when you have to change idle (weather, etc.) it can be finicky, too high or too low. That drove me crazy too. I'm so glad I went with the Edelbrock. I had one or my 650R and loved it before I waded it all up. It smoothed everything out and made the bike so much more enjoyable. I don't have to worry about it hunting around for an idle. It's about as close to a Constant Velocity for manners/driveability with much more performance. Don't go expecting huge gains though because you'll be disappointed. It just makes the bike much more civil. And as for jetting changes? Not even close...Edelbrock hands down. :applause:

Later, Lee

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Can I get a new Edelbrock carb for my L for under $400 bucks?? And surley I can put/install it myself?? Tune it also myself?? I'm not all that mech, but I can follow intstructions if I go slow enuff.

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In my opinion, there is nothing wrong with the stock Keihin carburetor. It is easy to adjust, easy to clean, easy to change jets on, it fits the bike perfectly, there is no issue with idle adjustment or cable routing (as many here have reported with the Edlebrock). I'm very happy with mine. Best of all, you don't have to bend over for another $400 or spend a day putting it in and getting your hands covered with gasoline. All brand new carbs seem to start bikes wonderfully because they have a new clean, usually up-sized, idle jet . A clean Keihin carb will start an XR very nicely.

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In my opinion, there is nothing wrong with the stock Keihin carburetor. It is easy to adjust, easy to clean, easy to change jets on, it fits the bike perfectly, there is no issue with idle adjustment or cable routing (as many here have reported with the Edlebrock). I'm very happy with mine. Best of all, you don't have to bend over for another $400 or spend a day putting it in and getting your hands covered with gasoline. All brand new carbs seem to start bikes wonderfully because they have a new clean, usually up-sized, idle jet . A clean Keihin carb will start an XR very nicely.

A pumper carb makes a huge difference when trying to fire up a modified high compression motor (I have a 10.5/1 piston+ hot cam stage one and had to lose the auto decompressor) Even stock, when the temp was around freezing starting was iffy with the CV carb.

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The fellow asking has electric start, so he won't be wearing himself out with a kick starter. Additionally, he didn't mention anything about having a high compression piston or a hot cam. I think there is little to gain by switching to an Edlebrock in this case.

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Big Air?? I guess I'll show my newbe... never heard of a big air...

Anyone care to comment????

Tried to call Barnums all day yesterday, but noone answered, they open??

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Do you think it would make your CR500 more manageable?

You're funny. It's plenty manageable right now (in box). :applause:

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How would an idle screw put a dent in the slide in less you had it screwed in too far?

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Hey,

I use a Mikuni TM40 on my 650R and I used a TM36 on my XR400. The Mikuni is VERY tunable, but this also can make it difficult to setup. This is why you hear some people complain about it. The Mikuni is a bit smaller too, so it has less fitment issues on some bikes.

The Edelbrock has a magic "turn this screw" to tune feature. From what I've heard, it's VERY easy to setup and has good performance.

You will not notice any huge increases in HP with either carb. It's mainly starting and throttle response. The stock carb can be lived with, it's just that most people like spending $ on shiny, go fast bits.

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How would an idle screw put a dent in the slide in less you had it screwed in too far?

Virbration I reckon. And no it's not screwed in too far. Over time it will just create a little crater. No biggie though...

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