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bueller ball breaker
 Post subject: Tuber Running Query
PostPosted: 02 Sep 2009 16:59 
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My M2 seems to run better accelerating than holding a constant throttle :?
I went for a slightly longer run on sunday :shock: and it just felt rough holding a constant throttle about 4K revs but wind it on and it feels a whole lot better.
From low revs it feels sweet and feels well rorty but now seems to gasp a bit in the middle if not pulling hard on the throttle.

It runs 42 mikuni Buell race pipe oval k&N carbon filter,race ignition
I think it needs a good service by :maz: but i think i will have to sell a kidney on Ebay first :lol:

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Beef
 Post subject: Re: Tuber Running Query
PostPosted: 02 Sep 2009 19:57 
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It may be running slightly lean on a constant throttle, and when you crack open the throttle, the?? (I can't remember what it's called- but it's the one you see squirting fuel into the venturi on opening the throttle) is alleviating your problems. you could try lifting the main jet a notch. Also make sure you have the right needle in-some Mikunis have different needles as standard-all depends where you got it from. If you are in the South, Mayors Motorcycles are very good at seeting carbs up on their rolling road, they have an exhaust gas analyzer which makes sure its bob on.

There's also Moore Speed Racing down South, but I have no idea whether they have an exhaust gas analyzer.....Tubbs will be able to answer that.

HTH

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pash
 Post subject: Re: Tuber Running Query
PostPosted: 02 Sep 2009 20:00 
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Beef wrote:
..the?? (I can't remember what it's called- but it's the one you see squirting fuel into the venturi on opening the throttle) is alleviating your problems...


Accelerator pump... ;)

Beef wrote:
you could try lifting the main jet a notch.


Surely the needle :?

Beef wrote:
There's also Moore Speed Racing down South, but I have no idea whether they have an exhaust gas analyzer.....Tubbs will be able to answer that.


Indeed they do... :D

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Beef
 Post subject: Re: Tuber Running Query
PostPosted: 02 Sep 2009 20:21 
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Thankyou Pash...yes I meant Needle, but my mind was still trying to think of accelorator pump-and it's 30degrees here, and I've been running around in it all morning!!! :lol: :lol: :lol: :lol:

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tubbs
 Post subject: Re: Tuber Running Query
PostPosted: 02 Sep 2009 20:25 
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fit a cv carb :rofl: :rofl: sorry i will stop it :uhoh:

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bueller ball breaker
 Post subject: Re: Tuber Running Query
PostPosted: 02 Sep 2009 20:35 
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No sniggering,pay attention at the back
:hehe:
main jet #160
pilot jet #25
air screw 2 1/4 turns out
needle type 96 on clip #3
accelerator jet #60

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thorkill the tall
 Post subject: Re: Tuber Running Query
PostPosted: 02 Sep 2009 21:27 
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tubbs wrote:
fit a cv carb :rofl: :rofl: sorry i will stop it :uhoh:


Convert it to FI - even better.

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chris(madrid)
 Post subject: Re: Tuber Running Query
PostPosted: 03 Sep 2009 06:23 
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Beef wrote:
Thankyou Pash...yes I meant Needle, but my mind was still trying to think of accelorator pump-and it's 30degrees here, and I've been running around in it all morning!!! :lol: :lol: :lol: :lol:
30 - Unless you're talking ºF in which case running about seems fine - 30 is what it was here yesterday by 9AM.

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Beef
 Post subject: Re: Tuber Running Query
PostPosted: 04 Sep 2009 01:56 
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Current ride: FUBAR...Enough said!
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30 degrees centigrade Chris, and you're welcome to fly over and join me for a morning of 'running' around and see if it really is that easy-37 here today :!: :roll:

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bueller ball breaker
 Post subject: Re: Tuber Running Query
PostPosted: 04 Sep 2009 06:02 
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Well thanks for hijacking the thread :headbang:

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bueller ball breaker
 Post subject: Re: Tuber Running Query
PostPosted: 04 Sep 2009 06:04 
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bueller ball breaker wrote:
Well thanks for hijacking the thread :headbang:



this section is moderated as we like to keep this purely for technical questions and resolutions so that other folk can also read easily to find solutions etc ... to do this we keep spam and unrelated chatter to a minimum, pop over to the social section for a good natter, or Buell Chat to talk about the bikes in general!

Thanks folks, happy riding!

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pash
 Post subject: Re: Tuber Running Query
PostPosted: 04 Sep 2009 06:36 
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Did you get the answer you wanted?

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thorkill the tall
 Post subject: Re: Tuber Running Query
PostPosted: 04 Sep 2009 16:57 
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bueller ball breaker wrote:
bueller ball breaker wrote:
Well thanks for hijacking the thread :headbang:



this section is moderated as we like to keep this purely for technical questions and resolutions so that other folk can also read easily to find solutions etc ... to do this we keep spam and unrelated chatter to a minimum, pop over to the social section for a good natter, or Buell Chat to talk about the bikes in general!

Thanks folks, happy riding!

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He's right, you know. Where's GM ;)

Still those posts still earn him one of these:

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bueller ball breaker
 Post subject: Re: Tuber Running Query
PostPosted: 07 Sep 2009 15:50 
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bueller ball breaker wrote:
No sniggering,pay attention at the back
:hehe:
main jet #160
pilot jet #25
air screw 2 1/4 turns out
needle type 96 on clip #3
accelerator jet #60


Well bit the bullet and had it dynoed today and it was waaay to rich everywhere apart from when it was on the main jet at full throttle and gave out 88.56 at 6372.8rpm and 78.95 ft/lb at 4217.6rpm.

The bloke said this was pretty good but i needed to run a leaner needle because anything below the main jet was mega rich :?
Any thoughts :4roz:

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Beef
 Post subject: Re: Tuber Running Query
PostPosted: 08 Sep 2009 01:48 
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Look to see what setting your needle is on, if you cannot lower it (IIRC raising richens lowering leans) Get a leaner needle :!:

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