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Dowxx46
Posted on Wednesday, December 27, 2017 - 12:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have a 1997 M2 with the stock CV carburetor. Was wondering if anyone has changed to a different carb, and results?
Mikuni HSR 42 comes up when I search. Looks to be a good option, but wondering what the electrical lead coming out of my current carb does and what happens if you delete it?
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Ft_bstrd
Posted on Thursday, December 28, 2017 - 06:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Have an HSR42 on my 2000 M2. Really like the carb. It's a flat slide design. Quick throttle response.

I think the electrical lead you are describing is the VOES meter. If so, you'll want to keep that.
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Dave_02_1200
Posted on Thursday, January 04, 2018 - 11:49 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have had the following combinations on a 2002 M2;

#1 stock carb* and stock exhaust
#2 stock carb* with race exhaust
#3 HSR 42 carb and stock exhaust
#4 HSR 42 carb with race exhaust

*reworked per Buellistic's instructions

If you want a more immediate, aggressive throttle response and value top end over low RPM operation, #4 is for you.

#1 is the ticket if you want smooth throttle response and strong low and mid-range torque. This is the set up I liked best for riding on wet twisty roads in the Northwest.

#2 Louder exhaust but performance was not improved enough to justify the racket.

#3 Immediate throttle response and strong low and mid-range. This is a great dry pavement set up but less so for the wet.

#4 Immediate throttle response and stronger power in the upper RPM ranges.*(However, this set up really benefits from X-1 or S-3 cams to get the full benefit from the HSR 42 and Buell Race exhaust.)
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Ft_bstrd
Posted on Thursday, January 04, 2018 - 04:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The combo I currently have is:

Port and Polished head and intake
HSR42
SuperTrapp IDS/stock headers
Andrews N4 Cams
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Dowxx46
Posted on Friday, January 05, 2018 - 12:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey I really appreciate the advice! I forgot to mention I have the Buell Race air cleaner and Vance and Hines muffler. Stock header. I bought the bike new and intend to keep it until it is a collectors item, lol.
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Ratbuell
Posted on Sunday, January 07, 2018 - 09:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The thing I never liked about the HSR is the on/off "light switch" throttle response. I much prefer a properly-built CV40 for real world riding. That's the way my S2 is set up - with thunderstorm top end and X1 cams, with stock exhaust - my M2, stock motor with full Buell race exhaust and intake; and my S1W, stock motor and full Buell race kit including exhaust, intake, and ignition. All docile, all excellent performers with no hiccups, and good power throughout the rev band.
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Ft_bstrd
Posted on Tuesday, January 09, 2018 - 08:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can moderate the throttle?

They're all light switches to Hammy McFisty! : D
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Phelan
Posted on Wednesday, January 10, 2018 - 12:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The Super G on the 90" I just bought says, "Gee, I wonder what throttle modulation is like". Now it says nothing, since I found a spun cam bearing...
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Simond
Posted on Wednesday, January 10, 2018 - 03:47 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hammy McFisty worked well on the early injected bikes that were prone to the odd hiccough. When I first rode my HSR equipped S2, the only other Buell I had ridden was an early X1 - I thought there was a problem with the suspension because of all the fore/aft pitching!
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Ratbuell
Posted on Wednesday, January 10, 2018 - 09:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yep, I like to be ABLE to modulate my throttle.

If I WANT it to behave like a light switch, I can do that with my hand. Just more of a twist. But in real-world riding...I do it extremely rarely. I prefer a smooth, gradual build of power that is in proportion (there's the key right there) to how much I've twisted the grip.
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Buellbum
Posted on Wednesday, January 10, 2018 - 08:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

----I never liked the on/off "light switch" throttle response.----

these bikes are jerky enough.

i don't see the point of trying to get more top-end out of a torque motor designed for low rpm? the torque is the fun part. i love just moving out from a stop-light leaving everyone behind... the jap bikes are the kings of top-end and there is little point trying to compete.}
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Jayvee
Posted on Thursday, January 25, 2018 - 02:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is there a two-cable Harley version of a quarter-turn throttle available? The diaphragm carb might slightly reduce the suddenness but still allow reaching full throttle quickly.
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Williamscottrobertson
Posted on Thursday, January 25, 2018 - 02:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Id put in a CV Performance kit and see if that makes you more happy.

https://cv-performance.com/cvp-harley-carb-deluxe- tuners-kit
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S1owner
Posted on Saturday, February 24, 2018 - 06:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am just saying there is nothing wrong with the cv. Easybto mod and work on. Mine has been bullet proof!
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Johnod
Posted on Sunday, May 20, 2018 - 12:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I put a

https://cv-performance.com/cvp-harley-carb-deluxe- tuners-kit

on my S2, made a very nice difference.
Also no more coughing through the carb.

I also put a Mikuni HSR 42 on my Harley, it works well too, but a lot more money. I converted it from EFI, otherwise I'd have just installed a kit in the stock carb like the Buell.
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Terpfords
Posted on Tuesday, May 29, 2018 - 07:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have woods cams and matching carb he modifies and Im just thrilled. It runs as you would expect a well sorted out combo should.
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