Who will be changing there chain tensioner to the 14' during valve adjustment ?

[twinrider]

I phoned the other shop and the mechanic knew right away what I was talking about so I guess I will just have them replace the tensioner when they do the clearance check.

 

[avc8130]

I phoned the other shop and the mechanic knew right away what I was talking about so I guess I will just have them replace the tensioner when they do the clearance check.

There ya go. Finding someone with confidence has to be a better start.

ac

 

[wfopete]

For all the upgrades the 2014 models have; when I get close to 27K I'll just sell my ride. Skip the valve adjustment and pocket the money saved. Hell, the suspension will be getting worn out (there's a EZ $1 to $2K to replace with good stuff), clutch hubs, fuel pumps, timing tensioner and all the other stuff starting to go south. Trade up to a 2014 with many fixes from the earlier generation bikes plus a decent cruise control and ES.

 

[KCW]

Fair enough, but even shim OVER bucket needs the cam out. Rocker arms are about the only setup that doesn't and those are becoming fewer and further between.

Either way. ANY Yamaha dealer that does service should be familiar with shim under bucket by now.

ac

AC, you're wrong about shim over bucket.

While we are at it, let me caution you, every day, you're sounding more and more like a know it all. It gets old. The funny part is, the more you say, the more clear it becomes that you don't have a clue WTF you're talking about quite often.

Oh, and while we are at it ... the reflash AC offers *IS* able to be detected by Yamaha dealers when they hook the ECU up to their diagnostic computer. I brought my bike in for pinging, and the tech TOLD me (didn't ask) that the reflash that I am running was the likely culprit. They reinstalled OEM software on the ECU and my bike has stopped pinging. Total waste of my money, caveat emptor.

 

[Koinz]

I'm surprised are how this thread has gone to shit. There has been one failure maybe that the tensioner might be at fault that we know about.

If it's not in warranty, replace it and your done.

 

[avc8130]

AC, you're wrong about shim over bucket.

While we are at it, let me caution you, every day, you're sounding more and more like a know it all. It gets old. The funny part is, the more you say, the more clear it becomes that you don't have a clue WTF you're talking about quite often.

Oh, and while we are at it ... the reflash AC offers *IS* able to be detected by Yamaha dealers when they hook the ECU up to their diagnostic computer. I brought my bike in for pinging, and the tech TOLD me (didn't ask) that the reflash that I am running was the likely culprit. They reinstalled OEM software on the ECU and my bike has stopped pinging. Total waste of my money, caveat emptor.

I've already admitted I was wrong about the shim over bucket. Packed my tail between my leg and took it like a man. Shim OVER bucket, albeit completely irrelevant to the S10, does not require cam removal. It appears a special tool is often required.

The S10 is shim UNDER bucket, and cams MUST be removed to change shims. I'm not a "know it all", far from it. But the S10 valve adjustment I have done. As well as many other shim UNDER bucket adjustments on many other bikes. They are all essentially the same. Cams out, tensioner out. The only real differences is the methods used to reset the tensioner.

Thanks for your caution. I probably won't heed it much. Changed my mind. I'll probably heed it A LOT. Later.

Yeah, it's pretty easy to tell if the bike is flashed by RIDING it. I still don't believe they were able to READ the ECU. I looked through MY records. I don't see anyone from HI that I've flashed an ECU for. I purposely never advance timing because even STOCK I could make my personal bike ping...even running premium.

ac

 

[avc8130]

I'm surprised are how this thread has gone to shit. There has been one failure maybe that the tensioner might be at fault that we know about.

If it's not in warranty, replace it and your done.

Really? You're surprised? On THIS forum? Seems pretty par for the course.

We've probably got at least 2 failures. Still not statistically important, but since the options are change a $135 part (possibly under warranty) or blow up your motor for $3k the paranoia is setting in.

ac

 

[MGB]

Getting back onto the CCT topice

I just did my first valve adjustment at 22K miles, took it in for warranty sub harness and asked dealer to listen to noise on start up. Also told him I felt like it got quiet since I had to reset the CCT during the adjustment.

He called and said he felt like it was too noisy, replacing it under YES warranty with the new one.

 

[KCW]

Yeah, it's pretty easy to tell if the bike is flashed by RIDING it. I still don't believe they were able to READ the ECU. I looked through MY records. I don't see anyone from HI that I've flashed an ECU for. I purposely never advance timing because even STOCK I could make my personal bike ping...even running premium.

ac

My bike was flashed in California before coming to the big island.

 

[Don in Lodi]

Re: Getting back onto the CCT topice

I just did my first valve adjustment at 22K miles, took it in for warranty sub harness and asked dealer to listen to noise on start up. Also told him I felt like it got quiet since I had to reset the CCT during the adjustment.

He called and said he felt like it was too noisy, replacing it under YES warranty with the new one.

Your results?

 

[MGB]

Re: Getting back onto the CCT topice

Valves? only one exhaust tight and out of spec. Two close to the low end of the spec. CCT? waiting on the part, they just made the call yesterday.

Your results?

 

[Kevhunts]

Has anyone who has replaced the CCT, also replaced cam chain guide?

 

[Koinz]

Has anyone who has replaced the CCT, also replaced cam chain guide?

Not me or my dealer.

 

[OldRider]

Does Yamaha actually use shim over bucket?

ac

Most all late 70's thru mid 80's did. XS100, 750/850 triples, XJ 550, 650, & 750 4's. Also Honda CBX's & 750 4's along with Kawasaki ZI, KZ 900/1000's and 70's/80's Suzuki GS 4's. The first under bucket shim bike I remember was the 1977 Kawasaki 650/4.

I still have the shims and tools for all the shim on top bikes. The best was the Kaw 900 valve holder tool. It was a half moon shaped tool that slipped under the cam and pushed the bucket down and you used a magnet to get the shim out. With the cam set on TDC you could change a shim out in 10 seconds. It was my understanding that they went to the shim under the bucket because at high rpm's you could float the valves and spit a shim out and that was bad business.

 

[scott123007]

The first under bucket shim bike I remember was the 1976 Kawasaki 650/4.

Fixed for ya. ::003::

 

[Koinz]

Most all late 70's thru mid 80's did. XS100, 750/850 triples, XJ 550, 650, & 750 4's. Also Honda CBX's & 750 4's along with Kawasaki ZI, KZ 900/1000's and 70's/80's Suzuki GS 4's. The first under bucket shim bike I remember was the 1977 Kawasaki 650/4.

I still have the shims and tools for all the shim on top bikes. The best was the Kaw 900 valve holder tool. It was a half moon shaped tool that slipped under the cam and pushed the bucket down and you used a magnet to get the shim out. With the cam set on TDC you could change a shim out in 10 seconds. It was my understanding that they went to the shim under the bucket because at high rpm's you could float the valves and spit a shim out and that was bad business.

Sounds like the same tool we used on the old VW Rabbit gas engines.

 

[OldRider]

The first under bucket shim bike I remember was the 1976 Kawasaki 650/4.

Fixed for ya. ::003::

Not so fast, my friend. The press first laid eyes on the first 650 in Scotland in late 76 and it was called a Z650, as in a little brother to the Z1. It was released in the US in March 1977 as a 1977 model and called a KZ650 B1.

 

[scott123007]

Not so fast, my friend. The press first laid eyes on the first 650 in Scotland in late 76 and it was called a Z650, as in a little brother to the Z1. It was released in the US in March 1977 as a 1977 model and called a KZ650 B1.

Thanks for that but I worked for Kawasaki in '76 and remember getting one in '76. May have been titled '77 though
http://www.ebay.com/itm/Kawasaki-KZ650-Four-652cc-1976-to-1978-No-M373-by-John-Haynes-Chilton-/301262671068?pt=US_Texbook_Education&hash=item4624a78cdc

 

[roy]

I talked Saturday with my dealers service manager and the lead tech who performed my first valve check/service back end of Dec last year. My bike had 25k on it and had all the exhaust valves out of spec. Wish I had known then there was possibly a new CCT in the pipeline. Oh well I asked service manager to check with Yamaha and have them advise me if I should upgrade to the new part if in fact it is a new part. If so I will schedule a visit to have it installed. I don't like spending money this way but it is way cheaper than the alternative. My bikes not a loud starter. Occasionally it will rattle a second after sitting for a long time. Nothing like the one in the video.

If this is a big enough issue I'd expect Yamaha to issue a bulletin to address the issue. This issue does way more damage than a burned out faulty headlight harness but that took them two years to confess they had a problem. Not expecting anything out of this issue. Probably just be swept under the rug.

 

[Koinz]

I talked Saturday with my dealers service manager and the lead tech who performed my first valve check/service back end of Dec last year. My bike had 25k on it and had all the exhaust valves out of spec. Wish I had known then there was possibly a new CCT in the pipeline. Oh well I asked service manager to check with Yamaha and have them advise me if I should upgrade to the new part if in fact it is a new part. If so I will schedule a visit to have it installed. I don't like spending money this way but it is way cheaper than the alternative. My bikes not a loud starter. Occasionally it will rattle a second after sitting for a long time. Nothing like the one in the video.

If this is a big enough issue I'd expect Yamaha to issue a bulletin to address the issue. This issue does way more damage than a burned out faulty headlight harness but that took them two years to confess they had a problem. Not expecting anything out of this issue. Probably just be swept under the rug.

When it rattles on every cold start, that's when you should replace it. Mine was doing the "occasional thing" for awhile even before my first valve adjustment. Didn't think it was bad enough to worry about, but once I heard it on every cold start, it was time to replace it. YMMV