| Author | Message | ||
     Scdobber |
Anyone tried a Dynojet kit on their stock M2? I rode mine some today since the temps were warmer and it did fine except in town with the occasion cough through the airbox but as long as I kept the RPMs up around 3000 I had no pops,cough,sneeze or what ever it's called through the airbox.I'm 3 turns out on the mixture which has helped some,tried the 45 slow but it seemed to reduce the cough but hurt overall power throughout the RPM band,also tried the recommended .050 shim which killed the bike with fuel.Other than 3 turns out on the mixture the bike is bone stock at 1,750 miles on the clock.I was looking at Dynojet kit #8118 for my M2 to take some of the guessing out | ||
| Nallac |
I have used Dynojet kits in a couple of bikes(DR650,R1)no buells tho. Made a good improvement,but would use a Factorypro kit over the DJ,as they're not so prone to wearing out the needle.As happened with the Dj kit in the R1,replaced it with a FP kit. | ||
| V74 |
before installing an HSR42 on my M2 i installed a yost jet kit in the stock carb and tuned it by seat of the pants it made a slight but noticeable improvement,the HSR improved it even more, | ||
| Dave_02_1200 |
Save your money. A Dynojet kit is not a no-hassle solution. You can get your CV 40 to work very well with just a 200 main jet and the slow speed jet and shims you already have. If the bike is running too rich, try 2 1/2 turns on the pilot screw. Also, check your choke (enrichener) to make sure that it is not leaking fuel into the carb and causing it to run too rich. Others here have done very well with their CV 40s without a Dynojet kit. Check the Knowledge Vault and send a message to Lafayette (Buellistic) for his set up. | ||
| Scdobber |
Will do,I got a question about the power of the M2.I've always rode crotch rockets and have owned many over the years and the smallest being a ZZR600 sport touring bike and even that bike had good power which I could almost compare to the M2 Cyclone power to power.I've seen alot of pics even in a advertisment on the M2 with the guy doing wheelies,not that I'm a wheelie guy but even in 1st gear running the bike up to 4K and rolling the throttle I'm lucky to get it to rise a inch which I've only tried twice but as far a pulling out of twisties the bike has plenty of power.Are these guys clutching the wheelies in these ads or is my bike weak? I figured with the short wheelbase and the torque it has it would be wheelie prone (Message edited by scdobber on February 20, 2010) | ||
| Dave_02_1200 |
Mine will wheelie if I sit up while rolling on throttle in first. It is stock with a rejetted CV 40, stock muffler, and Forcewinder intake. My S3T will do same in both first and second - it has hotter cams, fuel injection, race ecm, race pipe, and carbon fiber ham can intake so it makes more power than the M2. But the M2 is a more pleasant ride on the street. Relaxed and mellow. | ||
| Scdobber |
Dave,what size jets/shims are you running? | ||
| Dave_02_1200 |
195 main 45 pilot .040" shim 2.5 turns out | ||
| Scdobber |
Thanks,I may try the 45 again and the .040" shim when the weather is a bit warmer,the cold temps may play a role in tuning.I just cannot seem to get rid of the 2k-3k occasional hiccup,I checked for intake leaks again,tried wd-40 as well as the water hose but found no vacuum leaks.Is this cough pretty common on these bikes? (Message edited by scdobber on February 21, 2010) | ||
| Dave_02_1200 |
Mine only coughs when cold but not after a short warm-up. I remember it did that a lot when stock before I rejetted and adjusted the carb. Now all better. | ||
| Hugie03flhr |
I did the Dyno jet. It made the cough calm down and the throttle was a little snappier. As far as wheelies go, a little blip of the clutch or find a small hill at 15mph and hit it!!! Also I have found playing with the timing, good fuel and seat of the pants dyno works wonders! | ||
| Scdobber |
Well it appears it's common on the M2 to have this cough | ||
| Guell |
Mine will cough at idle when the engine is cold and i open the throttle, other than that, theres no cough at all. | ||
| Scdobber |
Is your carb still stock? | ||
| Guell |
No, 45 slow, 200 main, needle shimmed .50 and set screw turned out 2.75 turns. I think it runs a liitle rich, havnt dynotuned it yet | ||
| Scdobber |
The reason I ask seems like "almost" everyone has went to the 45 slow and uncapped the mixture to readjust or made some change on the carburetor even with a stock bike.I guess my question overall is these changes being made to eliminate the slow speed surge and the cough due to the lean factory setting/jetting? | ||
| Scdobber |
I've had more luck rejetting and synchronizing the 4 carbs on my last Kawasaki ZZR than this Buell with only one carburetor | ||
| Bluzm2 |
Check for intake leaks. It shouldn't cough with the above carb changes. |
