valve

While breaking down my bike in preparation of the arrival of Sean's shim kit I noticed some carbon buildup on the back side of my intake valves. What would be the cause of this (running rich) and the solution to clean them up without complete tear down? thanks in advance, Bill

Ok, I have a 03 Max with 11,000m on her the valve cover gaskets are starting to seep. I just started to use AmsOil in her the last oil change. I have seen no less than 4 miles per gallon increase in MPG. I am going to change the valve cover gaskets before riding season. Will I have a problem...

Hey all, I adjusted my valves today because I had two leaking valve cover gaskets and figured what the hell. Everybody wasn't joking, this job SUCKED. Anyway, got it all done and am ready to put everything back together. Problem is, I didn't pay alot of attention to the orientation of the...

Just tore the MITYMAX down for it's 3rd Valve adjustment.Didn't need shims this time.Valve lash for intake & exhaust were to factory specs.Only took us 3 hours.If u haven't had this done yet,these pic's will show what to expect. Have fun.:biglaugh:

Seems I see a lot of both. I know the Stainless Steel ones are more costly. When I used to off-road race we ALWAYS used rubber ones so that they'd flex instead of sheer off if you clipped a rock or something. But we are talking about streetbikes here. My wife just refinished her 1982...

O.K., it's time to consult the experts! I'm at the stage of my build where I need to check valve to piston clearance and I'm wonder what is the best method? Im running MTC 78mm, 13:1 pistons and Web cams grind#227-0.383 lift, [email protected] duration, 276 advertised duration so I want to make sure...

Hello, Is valve lash going bigger or thinner with miles? Some buddies on my french board are telling that lash become smaller (valve knocking and knocking on the seat=> valve become longer and go deeper in the seat..) I am not agree, and think that lash is growinq with miles (if not, why...

I just put on my new shinko's and I went to check the front air pressure, but the valve seems too deep for the guage to work. I had to loosen up the actual valve to get the reading. I thought perhaps the valve needed replacing so I put in a new one and same results. Is there something wrong...

Before I go too far, this is my first post here so.....Hello to everyone. Hopefully I am posting this in the correct thread, if not, just let me know. I picked up a 93 Vmax with 15k miles on it about a month ago. I have noticed that there is a bit of valve noise. It's not very loud but...

My carbs require the flue line to be routed down low between the cylinders close to where the oil breather is. This creates a high spot where air gets trapped in my fuel system. Iv removed the air before but its a pain in the ass preventing fuel from spraying all over uncontrolled. Can anyone...

I am trying to replace the valve cover gasket on the front valve and I am having trouble removing the cover after it has been unbolted...is there a trick? It seems as though theres not enough room without taking out the radiator and hoses.

I need to replace the o-rings on my coolant drain valve, but I can' t find a part #. It seems Yamaha wants to sell me a $65.00 assembly instead of a two dollar o-ring. Anybody have an o-ring part number that will fit?

I dont have my valves here in front of me and I need to order a valve guide pilot to cut my valve seats I think they are 5.5mm? or if any one happens to have a guide that they could lend out for a neway cutter with a .375 top. thanks

Hello all and thanks for the helpful information and occasional colorful comments! (Backstory) I am in Japan and have been gifted a '99 49-state model. It is in so-so to poor but running condition. after getting the rocks out of the washing machine (starter clutch), chasing down some...

Does anyone have a good place to buy OEM replacement parts? I'm looking at $25.00 for a valve cover gasket which is fine, I guess. But the rubber mounts are $7-$8 ea times 16...YIKES!!.......Is there a trick to refurbishing them maybe?? TIA.

Whats the "norm" when adjusting valves? Mine seemed to be pretty tight. If I am using my feelers correctly all my exhaust valves were around .008in and I went down about 3 shim sizes on average....005mm increments...so if it was say a 260 shim I ended up going down to a 245 shim...and ended up...

OK, I'm looking at the Yamaha factory chart for valve clearance adjustment.....the exhaust chart don't make any sense.:confused2: The blank row for measured exhaust clearance which should indicate "normal" range has been observed and thus no shim replacement needed is on the 0.16-0.20mm line...

So I discovered my damn drain valve is leaky. Not terrible but it is dripping. I found a thread that explained how to service it, so the first thing I tried was tapping it with a hammer. It didnt help. It leaks in the off position, doesnt in the on. My guess is, if the o-ring isnt shot then its...

hey all. gonna have to put a valve stem on the new rim once its done at the coater. i have some aftermarket stems and i attached a pic. in a test put-on today, the problem is i can barely get the second lock-nut on. i removed the original rubber nub closest to the outside-side and...

Hey all. I have started to an odd puff of oil smoke on start up So i am assuming that my valve guide stem seals might be leaking. - though it was a bit odd, two cylinders appeared to have oil fouled plugs, then i took it for a 20 mile ride and checked after and no wet oil look on any plugs -...