Adjusting Valves

[oldschoolGS]

The key is to hold the adjuster screw steady (after setting clearance) while you tighten the locknut.

Once you use the Motion Pro tool, you will never go back to using a pair of needle nose or vice grips. Set it one time and its done. period.

Not very expensive either and the same tool will work on any tappet adjuster Suzuki valvetrain (incl my Bandit 1200).

[tfb]

"Stretched valve" sounds like bike-mechanic-speak for "strained sphincter".

In other words, he's talking out of his rear.

[DimitriT]

The toughest part of the valve adjustment job is cleaning off the old gasket material from the valve cover gasket.

[UncleMike]

The key is to hold the adjuster screw steady (after setting clearance) while you tighten the locknut.

Once you use the Motion Pro tool, you will never go back to using a pair of needle nose or vice grips. Set it one time and its done. period.

Not very expensive either and the same tool will work on any tappet adjuster Suzuki valvetrain (incl my Bandit 1200).

I usually see those for around $30-40.

[chuckycheese]

Special tool

The 'special tool' the half-wit at the shop almost has to be talking about is the 3mm nut driver that someone else mentioned. I have one and even though it's an official Suzuki tool, the thieves at the shop only charged me $5.65...(It's worth about $1.50).8-[

[txironhead]

Wouldn't happen to have a Suzuki part number for it, would you?

[Road_Clam]

The 'special tool' the half-wit at the shop almost has to be talking about is the 3mm nut driver that someone else mentioned. I have one and even though it's an official Suzuki tool, the thieves at the shop only charged me $5.65...(It's worth about $1.50).8-[

It terms of "time saved" that $5.65 tool is PRICELESS.... so don't get into the cheap habit of jumping over a dollar to pick up a dime. The Suzuki valve tool is an EXCELLENT functional tool.

[txironhead]

I believe that I've found the part # for the tool from Suzuki:

#09917-14920

Can anyone verify that this is the correct 3mm driver for adjusting the valves on an '81 GS750E? This part # was recommended for a Bandit 1200....are they all the same size adjuster? The Motion Pro 6-piece set was $42 cheapest I found it and this one is $4.57 from Bikebandit.com. The article I got the # from said it would be $9 from Suzuki.

I found this at the bikebandit site by searching the part #, but the part had the same # on the "add to cart" page.

[Killer Canary]

I'm assuming your year is using shims.Clymer's lists a Suzuki tool for depressing the bucket so that the shim can be extracted,if you have a lathe you can just make one or I can look up the part number if you need.
Do go right ahead and do it yourself,though. Shim over bucket isn't too bad, somewhere between shim under and tappets for difficulty.
Be prepared to use up your three weeks, though, Idon't know your situation but here in little USA(Canada) shims actually have to be ORDERED!
The formula for determining replacement thickness also doesn't get it right the first time, either I don't know why(anyone?).Don't worry if you have to take a few stabs at it.

[Killer Canary]

Tappets! Never mind.

[REDDY]

Having built HUNDREDS of VOLKSWAGEN engines I can assure anyone that exhaust valves DO stretch. Usually this culminates in a (dropped) valve head, holes in pistons, ruined heads. Valves will wear the seat and valve face which causes tight valves. ANY significant change in clearance needs ATTENTION.