New Carb
- Thread starter vonmighty
- Start date
stroker crazy
crazy as a fox
The velocity stacks have a tendency to suck in rocks and small children (exaggeration), and create a surprising amount of extra noise.
However, if you avoid dirt roads and kindergartens, they should be fine.
About the filters all I can say is they help keep some of the dirt out.
Crazy
However, if you avoid dirt roads and kindergartens, they should be fine.
About the filters all I can say is they help keep some of the dirt out.
Crazy
josephau
Active Member
Hey Crazy
Another rookie question, just managed to change my stock carb to Mikuni VM22, it was a tight fit, took me ages to swap as lack of experiences.
After it was changed, the engine start up fine but sounded like in very high RPM, which scared the hell out of me.... Don't know what I have done wrong though.
Does the choke lever meant to be down or up ?
Much appreciated!
從我的 用 iPad 發送
Another rookie question, just managed to change my stock carb to Mikuni VM22, it was a tight fit, took me ages to swap as lack of experiences.
After it was changed, the engine start up fine but sounded like in very high RPM, which scared the hell out of me.... Don't know what I have done wrong though.
Does the choke lever meant to be down or up ?
Much appreciated!
從我的 用 iPad 發送
ACEitup
Been Around the Block
Heyjosephau said:
Im using a Mikuni vm22
pretty sure down is off! on the choke ? or is it ? will check today!!
high revs could be throttle cable needs adjusting ?
ease off adjustment screw and lock nut on throttle cable
on bars.
or failing that air screw adjustment turn for a better idle
think I posted some other info regarding mikuni carb
under the same heading here
I havnt had to play with anything other than the
adjust jet needle . My mikuni came set up lean
* VM Round Slide Tuning Manual.pdf
cheers ACEitup
ApriliaBill
Yeah...I'm old school.
By no means am I an expert, and there are many on here that know a lot more than I. But in my experience running up against the above symptoms, it's never been the carb. Is has always been a poorly routed throttle cable, or the intake manifold wasn't installed (sealed) properly. These are easy to check, before you start making adjustments that may only mask the issue.
Tad
Been Around the Block
Hi, just reading about your over revving carb.
One of the first things to check is that you haven't got the slide in the wrong way around. Make sure the cutaway is facing the air intake as if not the tick over screw will be holding the slide in the flat out position and there will be loads of play in the throttle cable.
Hope this helps, Tad
One of the first things to check is that you haven't got the slide in the wrong way around. Make sure the cutaway is facing the air intake as if not the tick over screw will be holding the slide in the flat out position and there will be loads of play in the throttle cable.
Hope this helps, Tad
josephau
Active Member
回覆: New Carb
thanks eveyone, it is very helpful tips.
i have not changed, adjusted the throttle cable at all, it is still the stock, will it matters if the length is not perfectly right bcos the new VM22 seemed a bit deeper/taller than the stock one?
Will check the slide facing the right way too, but im sure it is as i have assembled it a several times before it went in just to be sure i knew how to.
But what i have noticed after the new carb setup is the carb position is being slightly taller where the top of the carb (the connection of the black rubber together with throttle cable) is touching the frame of the bike, and i have to force the air box connection to go around the air intake of the carb. Not sure if anyone using VM22 have the same issue ?
cheers
Sent from my IM-A880S using Tapatalk
thanks eveyone, it is very helpful tips.
i have not changed, adjusted the throttle cable at all, it is still the stock, will it matters if the length is not perfectly right bcos the new VM22 seemed a bit deeper/taller than the stock one?
Will check the slide facing the right way too, but im sure it is as i have assembled it a several times before it went in just to be sure i knew how to.
But what i have noticed after the new carb setup is the carb position is being slightly taller where the top of the carb (the connection of the black rubber together with throttle cable) is touching the frame of the bike, and i have to force the air box connection to go around the air intake of the carb. Not sure if anyone using VM22 have the same issue ?
cheers
Sent from my IM-A880S using Tapatalk
josephau
Active Member
回覆: Re: New Carb
i'm sure that the choke/starter system that Mikuni calls is off when UP after reading long and winded manual and also online sources, it should be left off when start....if i understand correctly. Do u have the same Mukini VM22-133 as I have?
And guess what? My over reving problem is sloved after re-assembled, i did not push the throttle cable far enough on the top amd tighten it correctly, so it caused the slide 1/3 open throttle position....stupid me....
another great lesson to learn from.
and it sounded perfectly normal now, once the throttle is released, it recoil nicely and hits the bottom of the carb and making nice crisp sound, which it was not before.
Sent from my IM-A880S using Tapatalk
ACEitup said:
i'm sure that the choke/starter system that Mikuni calls is off when UP after reading long and winded manual and also online sources, it should be left off when start....if i understand correctly. Do u have the same Mukini VM22-133 as I have?
And guess what? My over reving problem is sloved after re-assembled, i did not push the throttle cable far enough on the top amd tighten it correctly, so it caused the slide 1/3 open throttle position....stupid me....
another great lesson to learn from.
and it sounded perfectly normal now, once the throttle is released, it recoil nicely and hits the bottom of the carb and making nice crisp sound, which it was not before.
Sent from my IM-A880S using Tapatalk
Hazza00
Been Around the Block
Does anyone know how to tell the difference (symptoms) between a carby that's running rich, or running lean? I haven't inspected my spark plug yet.
With my new pipes, and re-jetted carby (stock air box), I notice a slight discolouration on the header and was wondering if it was running lean and doing any damage, or if I could do anything to adjust it?
Haz
With my new pipes, and re-jetted carby (stock air box), I notice a slight discolouration on the header and was wondering if it was running lean and doing any damage, or if I could do anything to adjust it?
Haz
stroker crazy
crazy as a fox
Hazza00 said:
A stainless steel header is bound to develop a straw-colour (at least) at that first bend. It gets damn hot there, an some discolouration is inevitable.
Crazy
stroker crazy
crazy as a fox
Hazza00 said:
It doesn't tell you anything much about the mixture.
Crazy
