Whilst fuel/air help idle - I found the best fix for idle and reduction/removal of cold start back firing was the replacement of the factory ignition coil packs. I used some direct coil over plug units from a later bike and wired them directly to the factory coil wiring. The result was a lot more smoother and faster throttle response. All for ~$40
OMG..my 07 vmax is very sluggish off idle..I think you provided me a fix! Thanks and nice growl..mine doesn't that nice but was very snappy before the carb problem.
Mainly performed as a preventative maintenance procedure. I did notice slightly sluggish throttle response and the need to apply choke for cold startup was new. This, along with regular fuel treatment cleared it up.
hello,perfect video,I did everything U did exept I didnt remove those covers which cover those snicky srews,and my V-max running like brand new(2007 5K miles)thank You so much!(but by the way can You tell me why those 4 srews have to move 2 turns each,and later back on?)
the instructions on the carb cleaner can say ... start the vehicle ... let it warm up a bit ... remove the intake tube and spray cleaner directly in to the carb ... while applying a little throttle ... all the gunk and clogged material goes out as black smoke our of the exhaust ... i have tried it with many old cars it worked well ... why wouldnt it work here ???
That will work to remove a small amount of gunk on the surface and visible areas. This process gets directly into vent tubes and more internal cleaning.
@flying fast You clearly know NOTHING about VMaxs. This is clearly obvious. If you know ANYTHING about the bike, you know for a fact that a single manifold will actually make you lose HP. You dont know what the VBoost is for or even how it works.
The last time I had my bike restarted the diaphragm o. Carbs was replaced old gas drained , oil changed but I stuck it back I. The garage it’s now a few years gone by I need to restart it ride it for a few weeks I want to sell my 1986 Vmax anyone
carbs should come off bike and be stripped then cleaned with carb cleaner and compressed air. then with the factory specs, climber manual, 40 bucks rebuild. thats the only way to do this job right. and to set floats and sync carbs you have to have the specs and sync meter . talk to a bike mechanic thats what they will tell you,
Obviously you have never ever in your fucking life rebuilt 4 Mikuni carbs on a Vmax.... You'll spend $$$ on all the factory gaskets/seals to do the job right. Nice armchair quarterbacking fuxktard.
Hey man awesome video and I know this is in the past but can you tell me which screw is the idle rpm screw? I tried checking my service manual and the internet but can't seem to find it... Honestly I'm fairly desperate at this point...
From fully closed position, how many turns should it be to get it to factory specs? When you backed the screws out, did you take note of how many turns you started from to know how many turns to put them back?..
Whilst fuel/air help idle - I found the best fix for idle and reduction/removal of cold start back firing was the replacement of the factory ignition coil packs. I used some direct coil over plug units from a later bike and wired them directly to the factory coil wiring. The result was a lot more smoother and faster throttle response. All for ~$40
OMG..my 07 vmax is very sluggish off idle..I think you provided me a fix! Thanks and nice growl..mine doesn't that nice but was very snappy before the carb problem.
Did it work for you? I have 89 venture...same set up.
Mainly performed as a preventative maintenance procedure. I did notice slightly sluggish throttle response and the need to apply choke for cold startup was new. This, along with regular fuel treatment cleared it up.
Like your video, glad to say i still ride 2004 V-Max. Old guy that still loves that Rush...
awesome, glad to hear it
hello,perfect video,I did everything U did exept I didnt remove those covers which cover those snicky srews,and my V-max running like brand new(2007 5K miles)thank You so much!(but by the way can You tell me why those 4 srews have to move 2 turns each,and later back on?)
it opens the idle air mixture to allow more cleaner to penetrate
So, you're drilling out the brass plugs to get to the A/F mixture screw? And then plug them back up with what, a rubber stop?
I didn't put anything in after, this was an Phoenix AZ bike, wasn't concerned about moisture or corrosion
the instructions on the carb cleaner can say ... start the vehicle ... let it warm up a bit ... remove the intake tube and spray cleaner directly in to the carb ... while applying a little throttle ... all the gunk and clogged material goes out as black smoke our of the exhaust ... i have tried it with many old cars it worked well ... why wouldnt it work here ???
That will work to remove a small amount of gunk on the surface and visible areas. This process gets directly into vent tubes and more internal cleaning.
Because spraying carb cleaner into a set of carbs shrinks the o-rings, diaphragms and gaskets.
to clean the carbs you need to take them of and clean period!
@flying fast Tried conversions like these... Bad advice especially thinking power will be gained..
@flying fast You clearly know NOTHING about VMaxs. This is clearly obvious. If you know ANYTHING about the bike, you know for a fact that a single manifold will actually make you lose HP. You dont know what the VBoost is for or even how it works.
You must not know much about the Vmax and these downdraft carbs.
Sounds like it's skipping..
The last time I had my bike restarted the diaphragm o. Carbs was replaced old gas drained , oil changed but I stuck it back I. The garage it’s now a few years gone by I need to restart it ride it for a few weeks I want to sell my 1986 Vmax anyone
where you located
@@freebird1ification las vegas
@@localguy8 im in atlanta
I was turning a scew out and slipped tip of screw driver broke..i know !! stupid ... now what
Which screw were you turning?
Almost 100% of idling problems is a clogged pilot jet. Your technique will do nothing for that.
carbs should come off bike and be stripped then cleaned with carb cleaner and compressed air. then with the factory specs, climber manual, 40 bucks rebuild. thats the only way to do this job right. and to set floats and sync carbs you have to have the specs and sync meter . talk to a bike mechanic thats what they will tell you,
there's no need to completely remove all 4 carbs every time they need cleaning.
@Seth'sChopShop thanks man. 8 years ago when I made this video, the only info I had was from the vmax forum.
Obviously you have never ever in your fucking life rebuilt 4 Mikuni carbs on a Vmax.... You'll spend $$$ on all the factory gaskets/seals to do the job right. Nice armchair quarterbacking fuxktard.
Great video will give it a try thanks
what fuel cleaner are you putting in the syringe? I really need to do this. Glad I came across your video
Detroit Dizzle Berryman B-12 Chemtool is what I use, but SeaFoam is perfectly fine too.
treezy8769 thank you
@@treezy8769 I can use Car80 spray?
Hey man awesome video and I know this is in the past but can you tell me which screw is the idle rpm screw? I tried checking my service manual and the internet but can't seem to find it... Honestly I'm fairly desperate at this point...
Hey man, join any VMax group on Facebook, those guys are super helpful. Or look up Morley's muscle on Facebook, Sean Morley is the VMax MAN.
It's on the left side of the bike in between the carbs it's a little thumb screw under a brass thing
Great video. Well done!
Guy must got his tools at the Dollar Store.
jim kennedy harbor freight, duh
From fully closed position, how many turns should it be to get it to factory specs?
When you backed the screws out, did you take note of how many turns you started from to know how many turns to put them back?..
Yes that's what you do count the turns
Hey dude i plan on getting one of these, is it possible to remove the airbox and replace it with a conventional fuel tank?
a slim custom one by Morleys Muscle. the carbs sit up too high on the motor to have a conventional tank.
treezy8769 Damn, I love the Vmax but for some unknown reason i just hate the idea of the fuel tank being under the seat, thanks anyway dude.
+GHOST yeah, it's different. but you get used to it 👍
Reason is well know. You don't even have to know how to repair bikes its simply physics - to lower centre of gravity you lower the tank with a fuel.
How are you gonna filter the air that goes into the carb? I removed it and have individual filters on each carb? But a fuel tank? Doubtful!