Tomos A55 Phva Carburetor Speed Upgrade Kit Air Filter and Jets *red Filter* Reviews
Tomos A55 carburetor speed kit upgrade
I have a Tomos Streetmate and I just finished installing the A55 Carburetor Speed Kit Upgrade break> I besides put on a technigas side by side frazzle.
It runs GREAT at full-throttle and idles fine merely the mid-rand is really strange. Later on stopping for a long fourth dimension (for a stoplight at an intersection) when I open the throttle at first it goes worse and then it gets better. Like information technology almost dies for a 2d and and so is okay afterwards I open the throttle wider.
It as well seems similar there is a HUGE deviation betwixt full-throttle and slightly less.
Do I need to modify the needle circlip position upwards or down?
Anybody take suggestions/tips?
Re: Tomos A55 carburetor speed kit upgrade
that means that to much gas is going into the carb , happened to me, the engine becomes slightly floaded, so yea move the circlip ane notch downwardly and try that
-Samz
Re: Tomos A55 carburetor speed kit upgrade
needle down / circlip up to lean the mid-range.
Re: Tomos A55 carburetor speed kit upgrade
Yes, don't I motion the circlip upwardly for the needle to go down?
Is that what you meant, Samz?
Re: Tomos A55 carburetor speed kit upgrade
yea sorry, lol oops, motion it upwardly one notch to lean it out
Re: Tomos A55 carburetor speed kit upgrade
OK. Thanks. I'll try that today and run into if it's better.
Re: Tomos A55 carburetor speed kit upgrade
Moving the circlip up i notch didn't do the trick. It's notwithstanding really wishy-washy in the midrange... Similar it idles fine, gets slower and weird when I open the throttle, and and so SHOOTS off and seems pretty peachy at full throttle.
I tin can't fifty-fifty tell if it'south better or worse than it was before I moved the needle.
Shall I attempt to motion the circlip upward another notch? or peradventure downward the other way? Or could in that location be something else wrong?
Re: Tomos A55 carburetor speed kit upgrade
I recollect your jet is too big, sounds like it gets also much fuel when y'all give it gas at depression RPM and then it tin handle the actress gas at high rpm and takes off... Id try to downjet.
Re: Tomos A55 carburetor speed kit upgrade
unfortunately at that place is usually some blazon of trade off with performance parts the dip in power is from the pipe not the carb set up. the over all set made yous go faster though right? if you experience similar something is is wrong call 1977 and tell them you want to talk to nick, I put that setup together.
Re: Tomos A55 carburetor speed kit upgrade
Too large of a chief jet size has Naught to practice with the midrange. It has everything to do with the needle, and to an extent, the "infuser".
When the needle outside diameter, in conjunction with the infuser inside bore yields a smaller cross sectional area than that provided by the main jet, it is the limiting factor. If the jet were too big, the needle/infuser area would nonetheless be smaller. That being said, can't exist the trouble.
You lot should also try raising the needle (lowering the clip). Motion it effectually until you find what works. Yous may be able to find the sweetness spot with the needle position lone, only maybe not. If this were a two-stroke MX bike, I'd besides suggest other needles (with varying tapers), and likewise other slides (with varying notches/cuts).
If that doesn't work for you, call 1977mopeds. They sold yous the parts, and they should provide y'all with some support. Maybe other needles/infusers/slides are available - but possibly not.
Re: Tomos A55 carburetor speed kit upgrade
Thankyou for the data. Yeah. I don't actually recollect the main jet is too large considering information technology runs fine at total-throttle.
I tried moving the needle cirlip up one notch at a time and it was even so bad all the fashion at the top notch, and then now I'm going to try and move information technology down instead (enhance the needle).
Nick, It is going faster at total-throttle. I know nearly the dip in power and stuff, but there'south just something actually wrong, not just a dip in power. I'll call 1977mopeds if I'chiliad even so having trouble. Thank you for the offer.
Re: Tomos A55 carburetor speed kit upgrade
Help a newbie out please. What is the circlip? I just got the same kit for my ST, and I accept no idea how to melody information technology.
Re: Tomos A55 carburetor speed kit upgrade
No law-breaking human, but put circlip into google images, and you'll find out.
Re: Tomos A55 carburetor speed kit upgrade
But phone call the thing by its more mutual name- snap ring.
Re: Tomos A55 carburetor speed kit upgrade
i think on our test bike the clip on the needle was 1 up from the lesser there is also the air/fuel ratio screw that y'all tin can adjust its on the side of the carb its the apartment head not the phillips with the spring. tighten it all the way down (this should kill the engine) the dorsum information technology out 180
Re: Tomos A55 carburetor speed kit upgrade
None taken, thanks for pointing me in a management.
Re: Tomos A55 carburetor speed kit upgrade
Yes, one notch up from the bottom!
It's great now! Thanks!
;)
Re: Tomos A55 carburetor speed kit upgrade
Has anybody tried this kit lately?
Re: Tomos A55 carburetor speed kit upgrade
I just bought this kit and I'thousand confused that I was given a main jet #70 that can't fifty-fifty thread into place. It's skinnier than the stock #55 but the larger idle and emulsion tube fit perfectly. I have a 2012 tomos st so anyone if I have a unlike carburetor than this kit was fabricated for?
*I have a Dellorto 14mm PHVA carburetor
Re: Tomos A55 carburetor speed kit upgrade
The PHVA carbs take a 6m dellorto jet, most bikes are 5mm, so there yous go. Besides they have their own unique idle jets, choke jets, diffusers, slides, and needles.
Re: Tomos A55 carburetor speed kit upgrade
Average Joe Wrote:
-------------------------------------------------------
> I just bought this kit and I'm dislocated that I was
> given a principal jet #lxx that can't even thread into
> place. It's skinnier than the stock #55 but the
> larger idle and emulsion tube fit perfectly. I
> have a 2012 tomos st and so anyone if I take a
> different carburetor than this kit was fabricated for?
>
> *I have a Dellorto 14mm PHVA carburetor
I used this kit and found that the 210 Infuser / Needle Jet / Emulsion Tube messed up the balance of the carb and was just too rich fifty-fifty for the 17.5 MM Dellorto. I used a 65 Main which worked fairly well with the 210 tube merely when I went back to the 209 (Stock for the xiv MM) in the 17.v everything started to work Perfectly!)
Re: Tomos A55 carburetor speed kit upgrade
Y'all sound lean, just hard to tell over the internet. My guess is two things. You have an air leak or something, or you have not tuned it in all the style still. A big, large, huge mistake I made with my A55 subsequently I put my pipe on it and modded my air box for more than flow, was to tune it when the motor was too common cold. Some times I would even brand changes when it was about one-half warmed upward, screws every thing up. You have to become the bike fully warmed up, and So melody. Sounds uncomplicated, only I messed with it also much when it was common cold and that never pays off. Mine does not run the best when cold, like the commencement min or 2 at present, just after that its rock solid. It should run fine when cold too, but with mine dialed in I would need a smaller asphyxiate jet than forty, just I don't call up they make one smaller.
Re: Tomos A55 carburetor speed kit upgrade
Jason T Wrote:
-------------------------------------------------------
> You sound lean, but hard to tell over the
> internet. My guess is two things. Y'all accept an
> air leak or something, or you lot accept not tuned it in
> all the fashion yet. A big, large, huge mistake I
> made with my A55 after I put my pipe on it and
> modded my air box for more flow, was to tune it
> when the motor was too cold. Some times I would
> fifty-fifty make changes when it was most half warmed
> up, screws every matter upwards. Y'all have to get the
> bike fully warmed up, and THEN melody. Sounds
> simple, just I messed with information technology besides much when it was
> cold and that never pays off. Mine does non run
> the best when common cold, similar the offset min or ii now,
> but after that its rock solid. It should run fine
> when cold too, merely with mine dialed in I would
> need a smaller asphyxiate jet than 40, only I don't
> call up they brand one smaller.
" Very Sage Advice" Fabricated the same mistake and thought I had actually warmed information technology up. A warmed up engine is one that has been several miles out and back. The over rich I accept off idle only happens a few blocks before I go to piece of work over 4 miles away!
The overlap of the Principal Jet, Needle Position and Air screw are a lot more nearly people think! Put in a Larger primary and mid range is also richer and Off idle. Raise the Needle a notch and you will demand to turn out the Air Spiral to not exist as well rich at Idle! The Strangest affair to me is when y'all accept it too rich at idle it volition run the same every bit being too lean at Idle!
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