Timing Chain Tensioner Gasket...

[anutz]

So I had found small oil leak from the timing chain tensioner, I have got it out now and I notice I neglected to remove some bits of gasket that were on it, the rest of the gasket is absent...

So I now have no gasket....and I have searched the parts catalog and cannot see it listed and also in the service manual its no listed in terms of part number...

Anyone know how to get one?

[riedrider]

In the German spare parts catalog I can find it.
http://www.yamaha-motor.eu/de/services/g...index.aspx
Start with "Yamaha Online Ersatzteilkatalog öffnen" a new window opens click on "Ich stimme zu" which means "I agree".
Then choose in step one "401 -750", in step two "Fazer - FZS600" and in step 3 "2000" or "2001", choose a colour and then go on the picture
"Nockenwelle & Nockenwellenkette"
position 8, item# 4HM-12213-00

Regards
Guenter

[anutz]

Danke!

Found the part number and eventually found a UK stockist

https://www.fowlersparts.co.uk/search/part/4FM-12213-00

Anutz

[anutz]

Anyone have an opinion on the statements here about the OEM tensioner having issues at high RPM shut offs?

http://www.ebay.co.uk/itm/86-87-YAMAHA-F...5d3a648e30

[riedrider]

The FZX700 Fazer is a completely different bike.
It is a "shrinked" V-Max 
When you replace an automtatic tensioner by a manual one how can you be sure that you are not over tigthening the chain or to keep it too loose.....


Regards
Guenter

[darrsi]

The FZX700 Fazer is a completely different bike.
It is a "shrinked" V-Max 
When you replace an automtatic tensioner by a manual one how can you be sure that you are not over tigthening the chain or to keep it too loose.....


Regards
Guenter

INSTRUCTIONS
"...To set the tensioner adjustment, rotate the engine forward while screwing the tensioner bolt in. When you feel the engine tensioner parts (guide, rollers, etc.) make contact with the moving cam chain, back the tensioner bolt out 1/4 turn and tighten the jam nut. (For the finer pitch thread on the APE Pro Series tensioner it is advised to back the tensioner up 1/2 of a turn.)..."

They've been around for years, so can't be that bad, and for general riding rather than racing you could check and adjust it every few months to be safe.
Sounds similar to lower clutch adjustment.

I had cam chain noise for about 7 months last year because i mainly ride in traffic so wasn't giving the adjuster the push it needed to click another notch, whereas a manual one would've sorted that out for me. 
The chain had been replaced so i knew it was just the adjuster waiting to kick in.

[riedrider]

INSTRUCTIONS
"...To set the tensioner adjustment, rotate the engine forward while screwing the tensioner bolt in. When you feel the engine tensioner parts (guide, rollers, etc.) make contact with the moving cam chain, back the tensioner bolt out 1/4 turn and tighten the jam nut. (For the finer pitch thread on the APE Pro Series tensioner it is advised to back the tensioner up 1/2 of a turn.)..."

The instructions in the ebay link which are reffering to a certain value for the chain deflection that should be adjusted sound for me more reliable.
With the quoted instructions above I have my doubts to get the right tension because it is an indirect method and the chain deflection depends on the lenght of the chain, the type, number an position of the chain guides and so on.
But I am still not sure if you get the designed tension to the chain by measuring the deflection in any case. For a spring/ratch type chain tensioner like we have it on the Fazer it might work more or less. Because you can measure the deflection on an opened and not running engine with the original tensioner and then adjust the same value with the manual tensioner.
But with oil-pressure assisted tensioners this is not so easy. And these hydraulic systems are the only ones where I could imagine that they might back out when closing the throttle. Why should a ratchet tensioner like it is used in the Fazer do that? It is mechanically blocked in the reverse direction.
Pushing the original tensioner manually to the next notch in case of chain noise would be my preferred  method (I have the same issues on my TDM850 and there it is common practice).

Best regards
Guenter

[anutz]

Good point on the hydraulic ones versus the ratchet based ones