Replace spark plugs and check valve clearance

[Charliemurphay]

I created a maintenance sheet a while back with the intervals and such for each item listed in the manual, along with some of my own tweaks (oil changes at 5k instead of 10k for example).

At the bottom is a table for valve clearances that tells you whether the measured clearance is in spec or not. It will then tell you what tappet size is required to bring it back into spec. It has examples filled in. Feel free to use and pass around.

Link:

Google Drive: Sign-in

 

[Massimo]

Brilliant post... Are all valve clearances in spec?

Only front cil. left inlet valve needs to be monitored in the future !

 

[WayneFTR]

Only front cil. left inlet valve needs to be monitored in the future !

It should, in theory get tighter which will put you in spec?

 

[Massimo]

It should, in theory get tighter which will put you in spec?

The future will tell ....... it's just a shame it's so much work .

 

[American]

Just wondering is the rear cylinder exhaust valve measurement missing a zero or possibly a decimal in the wrong place?

Front EX- .008-.006
Rear EX- .070- .0095
Can’t imagine that’s right??

 

[Massimo]

I created a maintenance sheet a while back with the intervals and such for each item listed in the manual, along with some of my own tweaks (oil changes at 5k instead of 10k for example).

At the bottom is a table for valve clearances that tells you whether the measured clearance is in spec or not. It will then tell you what tappet size is required to bring it back into spec. It has examples filled in. Feel free to use and pass around.

Link:

Google Drive: Sign-in

Thanks for the offer but I'm still old fashioned, I write everything in a notebook

 

[Massimo]

Just wondering is the rear cylinder exhaust valve measurement missing a zero or possibly a decimal in the wrong place?

Front EX- .008-.006
Rear EX- .070- .0095
Can’t imagine that’s right??

Rear EX -.010 - .0095 !

 

[American]

Now we are talking!

 

[Massimo]

Compression front & rear 225 PSI

 

[Massimo]

How many pony's get lost here ?

 

[Max Kool]

What did you mark in the top picture ? Is that some shield in the throttle body?

 

[Massimo]

No Max it's a protruding edge from 2mm , which should have been machined away in the factory ! And you can't align it !

 

[Max Kool]

That sucks

 

[Charliemurphay]

Compression front & rear 225 PSI View attachment 5254View attachment 5255

I wonder if I have a bad gauge….
Mine were 280 and 290 at 9800 miles.

 

[Massimo]

I wonder if I have a bad gauge….
View attachment 5262Mine were 280 and 290 at 9800 miles.

Personally I find 230 PSI already high but 290 ???? I think you have a bad gauge !

 

[Charliemurphay]

Well according to the service manual 250-270 is the normal range. 230 is the service limit. With mine I assumed either the gauge was off a little or that I probably had some carbon deposits. Maybe both.

 

[Massimo]

View attachment 5263Well according to the service manual 250-270 is the normal range. 230 is the service limit. With mine I assumed either the gauge was off a little or that I probably had some carbon deposits. Maybe both.

It's confusing

 

[Charliemurphay]

It's confusing View attachment 5264

Interesting. I see that in mine too. The chart I referenced is on page 2.48 beneath the compression test procedure.

 

[Massimo]

Which one of us will be right

 

[Blue1]

That's what I was thinking, I wonder if the pic isn't showing the color accurately. Would probably be one of the few times I've seen a stock (late model efi) bike be too rich throughout the range, especially with a slip-on (usually it goes the other way).

Those plugs look OK to me, quite rich would be a dark brown or black. tan is good and they look close to me.

Given reasonably accurate color repro in the pic.