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  1. Diablotin

    CDI + vboost controller for 85 model

    Hi guys, my friend here is searching for a CDI and a vboost controller unit for an 85 model. Any unit before 93 will do ? how much should he expect to pay for both units ? tnx
  2. shicks16

    Vboost controller

    So i took the bike out today for this first time this season and let me tell ya, Sean is a miracle worker when it comes to these carbs, i still need to do a sync but the bike pulls smooth through all the gears. my next issue i am addressing is the vboost, not sure if this is a common problem...
  3. 1

    'VBoost' tach

    After reading the thread about the 185 mph speedo for an '85 it brought back a memory I thought I had about the first years. I could have sworn my buddies '85 or '86 had the words 'VBoost' on the tach around the 6000 rpm mark. Am I remembering correctly or did I have a little too much fun in...
  4. ninjaneer

    How To: V-Boost Intake Manifold Assembly Remove/Install

    As part of my crankcase breather housing job, I had to remove the carburetors and V-Boost intake manifold assembly (VIMA). I found what I needed as far as removing the carb rack on the forum, but as far as I could tell, the forum lacked a How-To for removing the VIMA. So here goes: First...
  5. S

    broken vboost

    This is a continuation of this post: http://www.vmaxforum.net/showthread.php?t=14887 ,ive been through all i can see with my own eyes,checked all the connections I can,and was going through my yamaha manual and saw this,my question is according to the book #3 is a Fuse,off the battery,can...
  6. F

    Winter Vboost

    News flash......Big secret.....the first electronic edition is available on line to members and non-members at the VMOA website. Dave #3505
  7. 4sylvester

    How does vboost work?

    Is there a thread that shows what vboost is and how it works?
  8. B

    V-Boost

    Hi Guys, this is my first post. Happy Xmas to you all. I am the proud owner of a 93 Vmax UK model. For those that dont know, the early UK bikes didnt have the V-Boost system. The powers that be thought they had too much power for the British roads (Utter Nonsense). I have recently been offered...
  9. S

    stuck Vboost

    Yesterday on my way home,my bike was acting very funny,hard time staying at idle,excessive low end power,then when i cam to a stop light the bike just shut off,all of my light were functioning correctly,but i had no vboost servo noise,and when i hit the start button,nothing would happen,i had a...
  10. B

    VBoost question again

    So right now I dont have the servo motor on,mine broke and my mechanic just wired the carbs open.I found a servo motor. Should I put it back in? Will it save be a couple of dollars in fuel consuption? And most importantly-will it "tame" the beast a little? Right now on take off,my Max sometimes...
  11. B

    GAS Mileage...no VBOOST

    My bike mech said my VBoost motor was broken and wired open my carbs.Do I now have permanent VBOOST?What miles per tank should I get?I had a 101 miles on a tank.Does that sound about right? Also,what is T-Boost?Is there such a thing? Somebody sell me a vboost motor.... Philip
  12. M

    T-Boost VS V-Boost

    i need to replace my v-boost on my bike. i used to have it wired open but i like the v boost kick. i think i need the little black box behind the left scoop. Should i buy a new v boost or could i just go with a t boost instead? ive heard rumors of problems with t boost but having it...
  13. mabdcmb@yahoo.com

    Stupid homemade vboost controller idea?

    Well, my vboost controller doesn't work. The servo motor is fine though. Only two wires are needed to power the sevo. Hook + and - to the servo and it opens, when you reverse polarity it closes. Only trouble I noticed is that if I apply power I can't just leave it on as the servo searches...
  14. mabdcmb@yahoo.com

    Dyno with and without vboost?

    Anybody ever do a dyno without vboost and with vboost? Just curious how much power it might add. My vboost control box is not working so right now the butterflies are completely closed. I took it out and rode it for about 25 miles like that and it ran pretty good but had a bit less power. I'm...
  15. VMAX1260

    is it possible the vboost butterflies open but the vboost doesn do what it should do

    is it possible the vboost butterflies open but the vboost doesn do what it should do . i mean everything seems to be working perfectly with my vboost system but i dont feel anything. when i unplag it .it is the same thing!!!!!!!!!!!!
  16. VMAX1260

    help asap, vboost problem i think....again

    ok. one month ago i posted a thread about my vboost which i didn't feel it to kick in. my engine is a 1300cc with carillo ,je pistons 79mm. stock carbs. t-boost installed. my mechanic had my main jet drilled so for the first 1500Km my engine untill 4000 rpm run very smoothly.the think is after...
  17. trentsee

    Vboost idle question....

    Hey guys!I just installed a SASY vboost controller(pretty Cool so far)I had my bike sitting at idle, and I was just playing around with the settings to see if it actually works.But when I would set the vboost at 1800(the full open option)My bike would die at idle!!!It would fire right back up...
  18. M

    question; vboost removed tuning

    does anyone have a vmax or have synced the carbs on a vmax with the vboost completely removed? previous owner took it off and i don't have it. it is a stock engine with full kerker and stage 7 with seperate k&n filters. thanks, mark:bang head:
  19. vegetta58

    v-boost @ 5000

    Been riding around playing with the max at diffrent speeds the last couple weeks. I dont like the v-boost kickin in @ 6000. If it could be set @ 5000 you could still run around 75mph on interstate without v-boost engaging. You would have a longer thrill and still keep it from running to rich...
  20. A

    Vboost

    Hey guys I got a question about the vboost. I just got a 89 vmax and there is a toggle switch on the left front side of the bike that the previous owner said changes the RPM vboost comes on at. I think it's a mod but not sure. I have no experience with vboost but I can't tell a difference no...
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