Typically clearances will get tighter with heat as the metal expands. Also these engines tend to get tighter over time as wear on the valves shifts the stems closer to the camshafts thus reducing clearance

There should be generic specifications in the back of the manual for the various bolt sizes. I go by feel but not necessarily suggested for the average guy to do.

Yes if you have the cam jump timing. This is a very rare situation though.

10Nm (1.0 m-kg) or 7.2 ft-lb

The tensioner comes out a long way with new chains and there is still a lot left to go on these

Any year and make of motorcycle can have issues with the trans. 2nd gear is the most challenging gear to get into quickly since it has to pass over neutral. You will want to warm the bike up before running it hard but you want to shift quickly and firmly at the redline and see if the transmissions stays in gear or if it skips or kicks out. Other gears can do it too but 2nd is by far the most common. The original 85 trans used extended teeth to engage and lock into gear while the recall replacement and subsequent years used conventional gear "dogs" to hold. Though they recalled this design in the Vmax that same gear dog drive stayed with the Ventures through the early 90's with no recalls. A lot of the durability depends on how you drive it. The Vmax tends to be ridden hard!

Yes, you can. I had problems with poor acceleration , turn's out that front side timing was not good. So I set it right with engine in frame. You have to drain the oil and coolant fluid, remove the carbs, gas throttle, cooling, radiator with rubber shield and plastic shield with electric components.

Yes it will.

Yes

@@one2dmax thanks I got through your video was very helpful.

Not worth it unless you also swap on a set of Vmax heads. If you'll do both you will get a nice power increase. I'd estimate at least 10%

@@one2dmax ok thanx for the quick reply! I think I'll just do the vmax rear end for better 2 up in the mountains. Thanx for saving me the money. I love these yamahas I have an 83 std venture also with the second gear problem. I got a transmission out of a 91 1300. Going to tackle that soon. Hope your business is doing well.

You have to dermine what the cause is. If you recently replaced the cams or had them apart this could be the issue. Otherwise it is likely a CDI or Carb issue.