| Author | Message | ||
     Anonymous |
Blake, Show me a Buell that DOES NOT mist from the carburetor. Its called stand off and all H-D and Buell v-twins do it. Depending on the timing, some do it more than others. Go out to the garage and remove the air cleaner cover from your bike. Start and warm it up and rev it up several times. Come back and tell me what you see. I'll wait right here.  | ||
| Madav8tr |
Is there a cure? I know what's happening because I can see the fuel being injected(not fuel injection) into the carb when I have the cover off of it. I was wondering if there is a trick to stop this from spraying my leg when I ride. It probably won't be a problem unles you have a filter set-up like mine. I was thinking that maybe I could place a piece of plastic on the backside of the filter to prevent it from spraying me. Or maybe even 3/4 the way around it. Thanks. | ||
| Blake |
Anony, I guess I have the first. No fuel mist spraying out of my carburetor, let alone the filter; I've never gotten the smell of gasoline sprayed onto me from the carburetor. You think that's normal? I'd have to disagree. | ||
| Rick_A |
I was once forced to ride a short ways without an airbox/filter. You could see a mist at times...but it was never outside the carb body. | ||
| Hootowl |
I have to agree. That's not normal, at least not for the stock cams. Extreme overlap is where you'll find that sort of thing happening at low RPMs. I've had my air cleaner off with the bike running, and there most certainly was not fuel spraying out of the throttle body. | ||
| Jim_Witt |
Go out to the garage and remove the air cleaner cover from your bike. Start and warm it up and rev it up several times. Come back and tell me what you see. Well I did so as directed. Man was I freaking amazed! I thought I was in Vegas when tons of quarters stated flying out a my carb. Just kidding, no quarters, but there was a slight mist, must be the dew point. Cheers, -JW:>  | ||
| Anonymous |
I had about 500 words on this, but it just is not worth it. You guys go ahead and fix this "problem". I won't get in your way any more. | ||
| Jim_Witt |
Anonymous, Sorry, I was just being a smart ass. I'd like to here what you have to say. Cheers, -JW:> | ||
| Anonymous |
Jim, Its not anything you said. | ||
| Madav8tr |
Anonymous, it is I that needs the answer not them. I can see the fuel being shot into the carb when I give it some throttle so I could also see that a vacumm could be created with negative pressure from the rear of the airfilter at speed. Is that what's causing this? | ||
| Pammy |
Alot of bikes do have stand off and it's not abnormal. It being so harsh that it wets your leg while riding, that's not normal. Mad, my friend, if it is as extreme as you describe, you could have a valve(intake) not sealing properly. If the intake valve stays open once the piston starts rising, pressure steadily builds inside the cylinder, and at some point the pressure will overpower the induction inertia and actually force the intake flow to reverse and push OUT into the intake manifold and subsequently into the carb, sending a mist of fuel with it. This happens, as I said, normally on most motorcycles(to different degrees). But not enough to come out of the carb, through an airfilter(and remember gas evaporates pretty quickly) and still saturate your jeans/pants. | ||
| Aaron |
What Pammy said. When we were tuning Ray German's Blast, and it had a cracked intake valve seat, we were getting a foot-long standoff out of that thing. With respect to what causes this even with a properly sealing intake valve, we've discussed this issue to death in the past. Overlap, exhaust pressure waves, associated richness, the role of the Thunderjet, etc. Blake, your cams have very little overlap and I suspect you've got a decent exhaust system, you'll likeley get very little stand-off. Other setups may get a lot more. | ||
| Blake |
Clarification... I agree that some standoff at certain engine speeds is normal. What I meant to imply was that riding down the road and having fuel spray onto your leg through the air filter is NOT normal. I'm sure anony will agree with that. No need for 500 words. Got a picture instead? | ||
| Knickers |
Does anybody use the stock breadbox with the race header on an M2 or S3? I bought a race kit and found the race air cleaner didn't give me enough knee room. Its interesting cause I fit fine on my buddy's M2L. Now I'm debating whether to keep the breadbox w/K&N or get something like the Force, but it looks like the bend of the pipe to the front cylinder is different between the stock and race header. Thanks, Kurt '00 S3 | ||
| Chrism |
Question, has anyone done a back to back dyno comparison of the breadbox verses a Forcewinder. Thanks for any insight, Chris | ||
| Jim_Witt |
Chris asked: Question, has anyone done a back to back dyno comparison of the breadbox verses a Forcewinder. Could be wrong but I thought there was an article in Battle2win long ago that did the comparison. If I recall, there's little difference. -JW:> | ||
| Knickers |
To answer my own question for the record: No clearance problems between race header and breadbox. Race air cleaner will be for sale soon. Kurt | ||
| Blake |
Kurt, Keep race air cleaner. Get rear sets. Actually, my right knee sticks out due to the race air cleaner too. I have a force intake that I may mount up instead. | ||
| Blake |
 Knee/Race Intake Interference | ||
| Knickers |
I apreciate the suggestion Blake, but I don't think rearsets would agree with my 37" inseam'd legs. I already get cramped on longer rides. I considered the Force, but I'm a little worried about expensive head damage resulting from a right side tip over. I'll take ugly and functional over pretty but compromised any day (heck I used to ride a Yam TDM). Actually the sad fact is that I'm reconsidering the whole race kit. This thing is deafening. I'd heard kitted bikes before and thought 'no big deal - I can live with it' but sitting on top of it is a different stroy. I can't ride the thing now for even short trips without earplugs. So now I'm torn between a bike I can live with an one that rips. I'm finding I ride a lot more timidly now just to keep the decibels down so it kind of defeats the purpose. Maybe I'll get used to it. | ||
| Blake |
Try repacking? I'm a 36" inseam and the race rearsets are far more comfortable than the stock ergos if you also get a set of more forward clip-on style handlebars. The rearsets put more weight on your feet, and take it away from the butt. Way better for long distance touring. It's easy to stretch your legs. If you have bad knees it might be a problem though. I have a bad right knee, still better than the stock ergos. | ||
| Littledog1 |
Kurt and Blake, Two times when it's been a great advantage to be 5'7" with a 28" inseam: 1) Two tours in 'Nam....couln't have been short enough, and 2) Riding a Buell S-1 with the race kit. My knee fits just fine with the stock peg location. In fact, I have enough room that I don't even run the heat shield...it was tough on a rain suit though. The S-1 is PERFECT for my size. I love it! Mickey | ||
| Knickers |
Hmmm, I hope it doesn't need repacking cause the thing is brand new. I'll look into the rearsets, it would be nice to have the additional ground clearance anyway. | ||
| Arkay |
I have a '03 XB9S with a race kit. The bike seems a bit fat on the low end and then comes on strong around 4000rpm's. The problem I have with this kit is the excessive amount of popping when rolling off the throttle. Even down to 10mph this thing is still popping. We've check for leaks at the intakes and exhaust system but found none. Re-ran the the ignition module setup but no difference. It pops a lot more after it warms up. Does anyone else have a similar situation with they're race kit? Other than going back to the stock setup is there a remedy???? | ||
| Cyclonemick |
I'm looking for some help? I have a 00M2 and i'm leaking oil from i Believe mostly from my bread box I have changed the rubber seal around the main cover(breadbox) which helped temporarily. I'm getting ready to buy the forcewinder and was wondering how to run my breather tube and to stop the oil leaking on to my pants and shoes | ||
| Aesquire |
Cyclonemick, First, make sure it's a breather issue. Is the back outside of the breadbox dry? If so, Temporarily run the breather tube to a small vented container & see what you get. IMHO the best solution is a catch can with a filter. Route 2 lines from your heads to a container, with a vent hole or line to a filter. The Jazz 1 pint mini breather is about $45, Jazz Products, see overflows you can spend $$$ for neat billet toys, or make your own. (pssst...make your own!) See the Engine..Breathers thread for many different solutions. | ||
| Cyclonemick |
Most of the oil that is seaping out is on the bottom of the box towards the front tire. I haven't taken the cover off yet to do any further investigation I just noticed recently that my pants get an oil bath. Thanks for all the info on running my lines. I hope to have the forcwinder in a couple of weeks. Have you heard of anyone else having the same problem with that ugly bread box? | ||
| Aesquire |
That happens with any setup (including forcewinder) that runs the breathers into the intake. But the stock setup should vent into the helmholtz tube in the airbox, and get sucked into the carb. If the vent hose is off the tube, it certainly would drip on your leg, so haul out the torx key & take a look. Check your front cylinder rockerbox too. | ||
| Blake |
Arkay, My buddy Keith has an XB9S with race ECM/intake and D&D muffler that behaves similarly. Keith's XB9S first received the race ECM/intake at which time it did not pop or burble on deceleration. The burbling/popping started upon installation of the D&D muffler. Not sure if the same behavior is prevalent on other race kitted XB9's or not. Try posting this to the topic on the Quick Board. It doesn't seem like an "Intake" related issue. | ||
| Cyclonemick |
Thanks for all of the help. If it is nice tommorow I will take that cover off and check for any loose lines and also the rocker box. I hope that is not the case because i have already changed to the new metal gaskets. I'll let you all know what i find. |
