I did the shot gun.....

[2fear]

My nice running 2005 Vmax started running rough a few weeks back, so I used Seafoam and nothing changed. I used ''Start your engine'' fuel additive and it started to run a lot better, for a while... Then the problem came back, this time worse then before. My bike would pop on deceleration, it would cough and sputter when I whacked the throttle. After researching the shot gun method and getting some words of encouragement from Tom ( Beekeeper ) and some heckling from Bill ( Wildman98 ) to stop being a pussy and tear into them, I figured I would give it a shot. All I can say is wow! I followed the directions on this link http://vmax.lvlhead.com/tips/shotgun.htm and it was right on the money, 3 out of 4 air/fuel mixture needles and springs had a white powder like residue on them... After my cleaning I took it for a test ride and it runs nice and smooth again, hats off to Lvhead for posting this method, don't be afraid to do it just take your time.

 

[Got V-Boost?]

I bought my bike a few months ago, and about 3 weeks ago I started having problems with it not wanting to idle. It hadn't been ridden much in the last year by the previous owner. I did the shotgun on it this last weekend, and it made a huge difference! Two of my air/fuel mixture screws had that white powder residue on the springs so I cleaned them off. I think the carbs still need to be synched so I'm going to do that this weekend with my new Carbtune.

 

[The Beekeeper]

Way to go Chuck!..................Now that wasn't so bad now was it..................:biglaugh:

 

[vmax2extreme]

I bought my bike a few months ago, and about 3 weeks ago I started having problems with it not wanting to idle. It hadn't been ridden much in the last year by the previous owner. I did the shotgun on it this last weekend, and it made a huge difference! Two of my air/fuel mixture screws had that white powder residue on the springs so I cleaned them off. I think the carbs still need to be synched so I'm going to do that this weekend with my new Carbtune.

A good sign you need this is your idle starts to go and it only runs with the choke on. I have bought a few vmax's that only ran with the choke on and I knew thats all it was!

Glad things worked out for all that do this task!

 

[sdt354]

I bought my bike a few months ago, and about 3 weeks ago I started having problems with it not wanting to idle. It hadn't been ridden much in the last year by the previous owner. I did the shotgun on it this last weekend, and it made a huge difference! Two of my air/fuel mixture screws had that white powder residue on the springs so I cleaned them off. I think the carbs still need to be synched so I'm going to do that this weekend with my new Carbtune.

I usually hand polish the needles till shiny when I have them out, yes I'm anal. I use a jeweler's cloth I swiped from the wife.
The shot gun is not hard and a must to learn, because every bike will need it sooner than later. You're going to like that carbtune. People that borrow mine always order one. I suggest plastic plugs on the a/f screw holes. They are available at most hardware stores. It keeps the dirt out and looks better too.
Steve-o

 

[dannymax]

Nothing anal about polishing the needles Steve-o....the tolerance between the jet needles & needle jets is very small, any varnish build-up at all is gonna affect your performance. Nice attention to detail! :clapping:

A jewlers cloth???.....Maybe just a touch anal....:rofl_200:

 

[KosRider]

Glad to hear that solved your backfiring problems Chuck; was getting a little embarassing riding next to 2Fear with all that back-firing going on !! :rofl_200:
Bill & Tom are going to turn you into a V-Max carb mechanic yet !!! unk:

I've seen how small these jets & openings are with these CV carbs on the V-Max ... and I'm always amazed on how such tiny amounts of crap / impurities / what ever you call it.... in these jets & openings, can have such a huge impact on performance. A BIG +1 for the Shot Gun procedure :clapping:

 

[Lew L]

Polishing the needles----sounds like a good idea even if the bike is runnin' good.
Not trying to hyjack the thread but:

Is there a product to put on the diapharams to keep them good over the years???
Lew

 

[Slacker]

I run a couple-three ozs of cleaner and Marvel Mystery Oil around every fifth tank, both old and new Max. Seemed to help.

 

[06VMAXIMUS]

and some heckling from Bill (Wildman98 ) to stop being a pussy and tear into them

:rofl_200:Now that's some funny shit! :clapping: