| Author | Message | ||
     Lake_Bueller |
Dan, There are people out there that know more about this than me but it sounds like a problem with the slow jet. I've heard of a few people that had bits if plastic from inside the tank get lodged in a jet. It's an easy fix if that's the problem. | ||
| Reepicheep |
Pulling the carb is a trivial job, and though your main jet is probably fine already (a 195 or a 200), your low speed jet could probably use bumping up (to the 45). Pull the carb, drill out the little plug, adjust the idle mixture screw, and replace the slow jet. My local Harley dealer had the replacement jet in stock. $5 and 30 minutes of your time, and makes it easy to give the carb a decent looking over to make sure its not gummed up. While you are at the dealer, pick up a new set of plugs just for the heck of it. If they don't help, you have a second set to store under the seat. ;) Of course, it would be a great time to install a forcewinder also ($150)  | ||
| Reepicheep |
By the way, while I am thinking about it, Aaron... did you ever reach a conclusion if the needle should be replaced from stock, or not? I seem to remember you having some dyno runs showing that there was not a significant difference, but my (stock needle 200 fast jet) still pings a little through the midrange and top, making me think it is a shade lean. Bill | ||
| Aaron |
Bill: you can find those test results here | ||
| Blake |
Dan: You might check for a serious intake manifold leak. Get her to idling fast, around 2000 rpm, and spray contact cleaner, carb cleaner, or even a fine mist of water all around each of the intake manifold's seals. If engine speed changes, you have just identified a leak. You may need to shore up or replace your seals. Most leaks occur at the manifold to cylinder head seals. | ||
| Bigun283 |
So...is anyone going to say what size jets they are running in their mikuni or are you all going to keep it a secret? | ||
| Blake |
Bigun: Hey man, this IS the knowledge vault. Did you try searching the archives? I did, one minute later and I'd found this old post (let it load completely and it will take you directly to the post of interest) and its companion posts that follow (lots of Mikuni jetting discussion). Sounds like anywhere between a 155 and a 165 depending on your elevation above sea level. | ||
| Sarodude |
Some time back I posted this link reagarding some crude needle and spring measurements I'd made using stock Blast and Dynojet parts. I realized after reading some of the prior posts that this might be interesting to someone... -Saro | ||
| Bigun283 |
Thanks for the help. Now I have some idea of where to start my jetting at.  | ||
| Seeeu911 |
BigMac, the Bub equiped M2 runs a Mikuni HSR 42 with a 152.5 main jet. Lots of great CV information in this area and archives. good luck. | ||
| Bluezhawg |
To solve all your cv carb woes do your self and your bike a favor and install a wood performance built CV carb.I put one on my Electraglide and the impovement is astounding.My throttle response is awesome the mileage is up and the thing flat runs now.It is pricey but the results are worth the price.The man is that good.Call Bob at 205-525-4949 or check his web site out www.woodcarbs.com You'll love it I do.Yeah thats an endorsement from a formerly fustrated CV carb owner.My buell is injected or I'd have a Bob wood carb on it too My .02 worth hope it helps. Steve... | ||
| Blake |
I have absolutely ZERO "woes" with my CV carb. I just don't see how a wooden carburetor would work very well anyway.  | ||
| Jocklandjohn |
Blake - depends which branch you get it from I guess. And I believe the exhaust has a real bark to it as a result.......but hey - what works for Bluezhawg might not work for yew......  | ||
| Blake |
hardeeharrharrr   Between you and me, the readership of this topic may soon disappear. And yes, "yew" I get it.  | ||
| Mrossi |
Would it be ok to run my '00 X1 with a Force air filter and the standard ECM or it would be too lean ? No other modifications, standard exhaust - I'm not so much looking for performace, I just like the look of the Force filter, especially opposed to the vile breadbox. Thanks in advancce for any advice M. Rossi | ||
| Shooter |
 K & N part # for a force? | ||
| Ccryder |
Mrossi: You do run a chance at running lean. Watch your plugs to see how lean. The odds are without an aftermarket exhaust you will be ok. With just the intake modifications your engine can't take advantage of the extra air. If you go the next step of an exhaust, you really do need the Race ECM. Just my $0.02. Neil S. | ||
| Reepicheep |
Shooter... Sport Twin K&N Force Replacement Filter | ||
| Fresh |
Hi all, Can someone explain what the little black electrical thingy is doing that is attached to my CV carb. The item is attached to a short piece of hose that is connected to the vacuum fitting on the carb. Two electrical wires are running from the small electrical part, one black and one purple with narrow white stripe. Is this some electric vacuum switch ? and what is it doing. Can't find it in my manual. The bike is a 1998 S1 Regards, Fresh | ||
| Peter |
Fresh, Look here. PPiA | ||
| Fresh |
Thx. Peter Fresh | ||
| Bigmac |
does anyone know where i could get a diagram of the cv carb mike | ||
| Blake |
Here ya go BigMac... Carburetor Chapter of old online service manual courtesy of our good friends at UKBEG. It's a large file, so if you are connecting via dial up, be patient. Once downloaded you can save it to your own hard drive. | ||
| Lake_Bueller |
I could have used that the first time I took the carb off the S3. I got everything back together and found a part on the kitchen floor. It took me forever to figure out where it belonged. | ||
| Steveshakeshaft |
You're very welcome Big Mac, stop by for a chat while you're there eh? Steve. Admin, UKBEG. | ||
| Blake |
Big Mac: Just remember that if one of the Brits asks if you've had a good fag lately, they aren't implying anything lewd.  | ||
| Bigmac |
thankx blake and steve for the link will be installing S&S air cleaner and rejetting soon, will let you know how it runs mike | ||
| Steveshakeshaft |
Careful Blake, I keep my fags under the seat in the tail portion of my M2.............  | ||
| Mr_Bill |
I think my Fuel pump is leaking. Is this a major or expensive problem? It works fine but it seems to be leaking from the center where the wires go into it. It's hard to tell, and troubleshooting over the phone with a harley tech just doesn't work! He did say there were some o-rings, but he didn't know if they were available separately, or if I had to buy the whole thing. On a side subject, does anyone know if this is covered under the basic 12 month warantee? or am I going take the big one myself on this? thanks for any help... Bill I can't belive I'm missing the best riding weather of the year right now.... | ||
| Blake |
Pretty much everything is covered by your warranty. The leaky pump will most definitely be covered. It is a safety issue. Don't fret, take the bike in and have it fixed. Call ahead and schedule an appointment, make them stick to it. Before you leave, you should know what the cause of the problem is, and what they are going to do to fix it, and when it will be ready. If they have to order parts, be sure to ask "You will order them now for overnight delivery tomorrow, right?" Or if it's late a two day delivery is not unacceptable. |
