tuning

Yamaha Star V-Max VMAX Motorcycle Discussion Forum

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  1. Jasonc994

    Anyone have a Y for the airbox

    Need the Y piece for the airbox to fix some tuning issues. Bought it with out. Thanks in advance
  2. L

    Cobra Exhaust Tuning Recommendation.

    Looks like the Manufacturer recommends that the Cobra Exhausts require re-jetting and tuning......... Does not seem that many get done!!!...... Yamaha Cobra Exhaust Website link below: https://cobrausa.com/yamaha/v_max_85...ashcut/2168SC/ VMax Cobra Exhaust Fitting Instructions (See...
  3. L

    Cobra Exhaust Tuning Recommendation

    Looks like the Manufacturer recommends that the Cobra Exhausts require re-jetting and tuning......... Does not seem that many get done!!!...... Yamaha Cobra Exhaust Website link below: https://cobrausa.com/yamaha/v_max_85_07/motorcycle_exhausts/slip_ons/slip_on_slashcut/2168SC/...
  4. L

    Cobra Exhaust Tuning Set-Up Experiences Please

    G`day All from Australia, attached a pic of my bike for anyone interested.... Firstly, all the evidence points to losing 10Hp with the VMax & Cobras combo... I get that, so, moving on..... I like the look and the sound and would like to persevere with them regardless..... Anybody like to share...
  5. L

    Cobra Exhaust Tuning Set Up Experiences Please

    G`day All from Australia, attached a pic of my bike for anyone interested.... Firstly, all the evidence points to losing 10Hp with the VMax & Cobras combo... I get that, so, moving on..... I like the look and the sound and would like to persevere with them regardless..... Anybody like to share...
  6. L

    Cobra Exhaust Tuning Set Up Experiences Please

    G`day All from Australia, attached a pic of my bike for anyone interested.... Firstly, all the evidence points to losing 10Hp with the VMax & Cobras combo... I get that, so, moving on..... I like the look and the sound and would like to persevere with them regardless..... Anybody like to...
  7. spottedsquirl

    Need tuning and jetting advice

    Hi everyone! My 85 max has the stage 7 kit installed. I bought the max that way. I also have an 83 venture I'm using as much as I can for parts. As far as I can tell the venture is stock, I'll have to do more digging to be 100%. However I do know the needles are stock. My max is running way...
  8. Fire-medic

    off the bike gas tank for tuning

    I had a small polyethylene gas tank from a Briggs & Stratton John Deere riding lawnmower that I decided to make into an auxiliary gas tank for work as needed. I got a couple of hose clamps, big ones, and some GB electrical insulated clamps to make eyelets on top of the tank. Then I used some...
  9. jdeitz1979

    Tuning opinions

    I would like to make my max a little more responsive and would like some opinions. I have a k&n air filter and the y at the top of the box was modified a little bit to allow more air flow. Stock carbs, stock needles/jets. Vboost unplugged. Stock headers, but do have kirker cans Which...
  10. S

    carb tuning

    Hello all, Just got my carb tuning tool in the mail and hooked it up. The reading is bouncier than i expected, but I think I got them pretty close. I attached a video. Do you guys think it looks about right? I also turned up the idle screw so it was idling right at 1000 after the video...
  11. Zeus36

    External Tach for tuning?

    I switched from the stock silver face instrument dash to an OEM dark face one. The replacment tach shows 500-600 RPM while the old one showed 1000. So I don't know if the original or the replacement OEM tach is correct. Does anyone use another temporary tach for tuning? Also, is there a...
  12. Conman

    New Exhaust Carb Tuning Issues

    So I'm taking the plunge into carb tuning. They've always been sort of a black magic to me, but its getting frustrating running with the current setup...... Anyways, I had Danny rebuild the carbs last spring and they came back like this: Jets #90, #170, #155 main Stg 7 needles on 3rd clip...
  13. ColoNat

    Lots o tuning, with a Q

    New Moose racing plugs, appropriate match to dpr8s, new COPs, thanks blaxmax! and then synched with the new digisync... Q is why no reaction from cyl 3 when vacuum cap is removed? All others caused the bike to falter and drop rpm. Is it a clogged idle circuit, general over rich condition, or...
  14. caseyjones955

    Innovate sniffer for carb tuning

    Ok, I'm gonna buy a sniffer to tune, really tired of guesswork besides I'm on top of picking up a Venture which will no doubt need a good optimizing. I called Innovate sales dept to ask a few questions and got some interesting information. Luckily I got a cool sales rep that gave me some...
  15. K

    Sputtering at certain RPMs?

    Finally got my VMAX out to where I'm currently living (Cali) so now I can ride her anytime I need to. I've been plagued with issues getting a good tune on this bike and I can never seem to get my little tuning woes to go away. When I drive the bike the exhaust note will change around 5.5K rpm to...
  16. Lotsokids

    Tips for Drag Racing Tuning Prep?

    I found a local place to rent a trailer to bring the V-Max to the drag strip 4.5 hours away. So this will allow me to do some tuning prior to going, without worrying about "streetability." 1. I have a custom VERY free-flowing exhaust, which is extremely loud. I understand the combination to use...
  17. M

    Carb Tuning at altitude

    I found an archived article related to carb tuning for people in Denver, however it appears to be for stock exhaust setups. I have a single K&N filter and UFO 4-2-1, I upped my main jets to 155 after putting the exhaust on. Does anyone have modification suggestions based on this document for...
  18. 1st Shirt Maxer

    Tuning Help

    After doing some work on the bike I pulled the plugs to find all 4 look like the one in the picture. I have supertrapp slip-ons with the open end cap, I'm running a k&n filter with stock carbs except the mains were stepped down from 152 to 147.5. Any ideas why I am so rich? Forgot to mention my...
  19. Traumahawk

    Muscle jet tuning game plan

    Edited for content
  20. 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...
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