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  1. M

    Carb Tweaking Help

    I just installed the UFO 4-1 Dragstar exhaust, I live in Denver, CO ***a mile above sea level***. The bike is running lean at 3.5 turns. Do I need to change jets? If so what do I need to change to? On another note, I installed an RX1N gauge setup and need a little help with a few things...
  2. fmcandrew

    Carb tuning suggestions welcomed!

    Hey guys, just got my bike back on the road and it's running OK, but not great. I installed a holeshot exhaust and I have a Morley kit. With Sean's advice I hve the following settings: 160 mains Stock needle (1 very thin shim) Stock springs Air correctors Morley lid Slides are NOT drilled...
  3. Miles Long

    Carb sync - valve adjustment indicator?

    For you motor gurus - Damon just posted something interesting in another thread - "Erratic idle when hot" Quote - "When was the last time your valve clearance checked and/or adjusted? I have seen when a valve adjustment was needed the idle rpm & vacuum readings would be bouncing all over...
  4. I

    Carb tune done with Cobra Slip ons

    Well as the title says. I am looking for suggestions as to what fellow VMAXers have done with Cobra slip on setups. My bike is currently all stock with the exceptions of the slipons. My issue with the bike is cruising around 3.5k to 6.5k (around 65mph to 80mph or so) it studders and acts like it...
  5. O

    Any chance what I think is a carb issue isn't?

    Been having a constant issue with my 98 for some time now. Bike has 16k miles, 4-1 Kerker, Stage 7 dynojet kit with the individual K&N pods, air correctors, S7 needles, and drilled slides. I've never been able to get the bike to run smoothly. My main problem is WOT sputtering below 6-7k RPM, and...
  6. N

    Rich/lean adjustment by adding/removing washers under the carb needles

    Anyone else do this? I pulled the diaphrams (sp?) and removed the needles.. Then went and got plastic washers to place under the needles, to move them up and create a richer mixture an mid/high throttle openings. I have been tuning my carbs for the Vmax's new home, at our lake house (elevation...
  7. sarchin

    popping back through carb on #3 cylinder

    Yesterday I was syncing the carbs and every so often there's a little pop of air coming back through the sync port...maybe every 10 seconds or so, otherwise there's a vacuum there. The little pop is strong enough though, that it will blow the sync hose off the port after around 5 or 6 pops. I...
  8. N

    Seafoam+shotgun carb cleaning= Wow!

    Never had her run so good! I did the shotgun cleaning method I saw on here, and used b12 chemtool, and 100psi. I added seafoam to the gas tank, and also sprayed it (did you know it comes in aerosol form too?) in the carbs with the bike running as I throttled it up to keep it from dying. After...
  9. J

    carb info on 88

    got my carbs out. split them all apart for a mega cleaning. wondering about jets i have in it. no markings on the main. the long one in behind rubber plug says 9a, pilot is 7.5. i got a k&n with kerker slip ons. wondering what jetting should be in the carbs and if it has a jet kit or not...
  10. S

    1997 carb issue

    Hi.New member here and have been gaining knowledge from this forum.i picked up a 97 recently and have been having an issue with it running rich.Strong raw fuel smell at idle and horrible gas mileage.Tried cleaning carbs and changing plugs which helped somewhat.Mileage went from 10 to 22...
  11. G

    Idle / Low end problems

    Hi all! I am determined to get my VMAX back on the road. It has been down for 2 years. Here is what is going on.. It won't idle. When I am driving it it feels fine. Pull in clutch, dies. Stop and go traffic I have to keep reving the engine to keep it running. I took it to a repair...
  12. S

    Carb diaphrams

    Does anyone know the best option for replacing gen1 carb diaphrams? The rubbers on a couple of mine are not soft ( not cracked) but hard..:ummm:
  13. scuff

    Carb and Pipe setup suggestions Anyone?

    Ok so I am a new owner of a 94' V-max. I have all the little stuff taken care of now so it's on to bigger things. My bike came to me with Cobra slip on's with stock header and Stage 1 carb setup at least that's what the previous owner said about the carbs. Well the bike doesn't seem to run as...
  14. Vincent Maxwell Ribaldry

    Carb sync issues

    So I did the shot gun method. The brass plugs had already been removed. Diaphragms are black, no felt around the edge. They look to be in good shape, no holes, guessing they have been replaced (thoughts?). Counted mix screws in 1/8th turns (19, 24, 22 and 19). I set them all to 19 1/8th...
  15. K

    4 barrell carb

    If I did a custom manifold could it be done
  16. jwood

    Hard Cold Starting with Carb Farts!

    I have been having a new issue that just started this riding season, when the bike is warm/hot no problems starting, when the bike is COLD from sitting a few hours to overnight, I put the choke on and my Odyssey battery turns the engine over at a great pace! the carbs (not sure which one(s)...
  17. C

    Carb sync question

    I have access to some manometers at work. My question is can I use four individual manometers to do a cab sync and get it real close? We have single manometers at work to check gas pressure on furnaces.
  18. T

    Any REputable VMAX Carb experts in the Dallas/FT Worth area?

    Hi, I just purchased a 99 Stage7 Vmax a few weeks ago, it seems to be running quite rich, I'm going to take a stab at messing with the Carbs myself but as a backup does anyone know of any shop or individual that can do carb work...for a fee of course any tidbits would be appreciated
  19. mabdcmb@yahoo.com

    Carb Dip Question

    I'm thinking about buying a can of carb dip from NAPA. Never used it before. Will it ruin plastic? The plastic piece that the float drain tubes connect to are still in the body. I also noticed some plastic washers on the throttle shafts under the E-clips. Do these plastic parts need removed...
  20. S

    Light Throttle/Cruise Carb Issues

    My '85 has some issues at light throttle/cruise especially in higher gears/heavier load. The bike is stock other than the 4 into 4 Cobra slip-ons. I pulled the carbs and cleaned them, replaced a coast enricher diaphragm that was bad, jetted it down to 147.5 base on Sean's advice due to the...
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