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Doing my first Valve Adjustment on my 1990 VMax and I found 7 tight valves, 3 intakes measuring .003, + 4 exhaust measuring .009. I have the service manual and I'm thinking the cross reference chart is not correct? One Exhaust measured .009- .223mm with a 268 shim installed and the chart calls...

I have a 1990 VMax and when I start it up with the Side Stand down, Clutch pulled in, in Neutral. It will stall if I let the Clutch out even though I'm still in Neutral? But if I pull the Side Stand up and put it in gear everything is fine! Shouldn't this bike idle in Neutral with the side...

Anyone know what the vacuum line on the #1 Carb is for? #2,3, and #4 carbs have the plugs on them and theses are the spots that you hook up your vacuum gauges. I want to know if the #1 vacuum line is needed because I want to inject a hydrogen, oxygen mixture into these ports. Thanks!

I have a 1990 VMax and the clutch is slipping! I'm looking for information on what parts are needed to do a GOOD CLUTCH OVERHAUL. If any body knows the parts needed and possibly the Yamaha Part #'s that would be greatly appreciated!:clapping:

I'm running an auxilary system on my 1990 VMax with Sidecar and I need to know How the DC rectifier/ regulator works. What I need to know is at what specific voltage does it call for charging mode? Also, How durable are the AC Stators/ DC rectifier regulators on these bikes? Do they burn up...

Hi All! I'm new here! Wanted to share with you all pictures of my 1990 V Max Hybrid with Velorex side car.:eusa_dance: Why is it a Hybrid? It is fitted with a self made HHO generator (Experimental).:ummm: Why do I have a sidecar hooked up to my V Max? Well, I've had the bike since 1994 and I...