| Author | Message | ||
     Maxbuell |
Need a carb for my 2002 M2 old one is damaged. any ideas? what should I do? stock CV40? upgrade ? | ||
| Ft_bstrd |
So far I like my Mikuni. | ||
| Buellistic |
IMHO, the Keihin CV40 properly jetted and PRODUCT IMPROVED offers the best of both worlds ... | ||
| Cyclonecharlie |
If your big on "hot-dogging"go with the Mikuni.....if you like to cruise and want a smooth ride(not twitchy)and if you travel in different elev. and climates and don't like to fiddle with your carb with any frequency, stay with the CV.Dyno runs show them pretty equal in performance.If you can find a Buell intake manifold for a 44....you will get a performance increase you can feel even with the 40CV mated to it.....Others may disagree, this is just my experience with my Buell. | ||
| R850r |
What's damaged on your Carb? | ||
| Brinnutz |
I'm going to slap on a CV44 in the near future... | ||
| Rick_a |
The CV40 is good to feed up to 100hp motors and is great in all respects EXCEPT that you can get better throttle response in a properly tuned Mikuni. Mine needs an idle adjustment between seasons and always runs better/gets better mileage in the cold weather. In the summer I'm getting 35-40 mpg in town and the acceleration is a bit soft from low speeds. In the colder months it gets 45-50 mpg in town and runs like a highly tuned FI bike. The Mikuni 42, jetted for max power usually shows 2-3hp over the CV due to a larger bore and no throttle plate obstructing the airflow. The Mikuni can also feed motors making well over 100hp. The nicest thing about the Mikuni is that you don't get that elastic throttle feedback that the Keihin provides. The CV does work better for quick shifters. | ||
| Maxbuell |
Like to stay with stock CV. Carb is busted where intake for VOES and carb meet 40 | ||
| Dave_02_1200 |
The CV 40 can be very good for stock or mildly tuned motors. Just rejet, shim the needle and drill the vacuum port in the slide to 1/8". That last step will give the direct throttle response we like about the Mikuni HSR 42. However, if you have a built motor, go with the Mikuni HSR 42. I have had both and can say that a stock M2 that runs better with the modified CV 40 than it did with the HSR 42. My S3T is fuel injected now and runs great with its race ecm and race intake and exhaust but it does have hotter cams than the M2. If the DDFI ever fails, I'll put the HSR 42 on and all will be good. I havn't tried a CV 42 but that night be a good alternative for a hotter motor too. They just cost too much when a good CV 40 can be has so cheaply and can be work so well so easily. | ||
| Sanders |
I have a S3 with a Mikuni HSR 42. I have been very pleased with the results. Better throttle response than the DDFI. Never could get the DDFI to work properly. Downside is my mileage dropped with the Mikuni. I have a Baker XL6 tranny and was getting 60mpg, Mikuni I get about 42 to 45. Still an acceptable mpg. | ||
| Captainkirk |
HSR. I ran both the jetted CV-40 and a CV Thunderslide prior to forking over the bucks for the Mik. Money well-spent. Unless you're riding in areas with altitude changes, the Mikuni is the winner, hands down. Just my opinion. | ||
| Ft_bstrd |
The Mikuni could benefit with a smaller throttle tube spool. With the stock setup, the 42 is more like a light switch. On or off. |
