CHAPTER 6 - CYLINDER HEAD & VALVES

[Confucious]

Posts regarding #Cylinder head cover #Camshaft #Camchain tensioner & #Valve seats

[Confucious]

Read up on the procedure of measuring and adjusting valve clearance.... intake=0.1mm, exhaust=0.12mm . The bit about remove tank, crankshaft, timing hole and valve adjuster caps are understandable. Clearance of the left exhaust and L/R intake valves is "reasonably" clear, but then comes the valve clearance on the right-hand exhaust valve... doh ? :?

On a scale from 1 to 10 how difficult is the whole job...or at least the last bit ? What would a garage take in the UK for this job ? If I multiply that by 3 it'll give me the price in Norway :evil:

I've had spanner for two years now, and thought it about time I did it !

Cheers chaps !

[squirrelciv]

It's not that bad really :D The point they stress about the RH exhaust is on account of the valve lifter. If you take your time and make absolutely sure you approach the timing mark from the right direction and stop spot on (as opposed to missing it slightly and rolling back for another go) You'll be fine :wink:
Out of 10 I'd say a 6 with 1 being turning the fuel on/off and 10 the removal of the gear cluster :shock:

[anton88]

Just to make things easier when i do mine, i remove the fairing and fuel tank - avoids any damage if a spanner slips, plus whilst those bits are off, you can have a really good clean to all the hidden bits - just take your time.

[Confucious]

:? Hmmm ! 6 eh :?: OK I'll give it a go around about February. That way, if I screw it up then I haven't ruined christmas :santa: I can always chuck her on the trailer and deliver it to the Honda dealer. Would you believe I've never had the need to turn a crankshaft before. I've shafted a crank - but she's another story :lol: ....thanks again people :thumbleft:

[kenny1950]

When setting the valve clearance on mine I just had the valve open then rotate till its on the back of the cam and adjust. Cant see why the need to use the timing marks. No big problem to adjust.


Ken UK

[Confucious]

:shock: Here we go then......I'll attemp to replace the valve guide from another thread in conjunction with this exercise. I don't understand the missus anymore :? , so I'll try and deepen my understanding with the Dommie. Tonight - sofly, softly....stripping - tank, fairing, loosen carb., spark plug lead. Don't you guys disappear- cos you're going to be called on very soon.....

[Confucious]

Oh yeah !....and how do I obtain TDC......like physically what do I have to do and where do I look......and you're all thinking hmmmm! he's gonna end up with a box of bits at the honda workshop :thumb:

[Rubberchicken]

TDC, you need to get both hex caps out of the left side of the crankcase.

Better polish up your cursing vocabulary, because they tend to be stuck hard. (So get a decent hex bit.)

Anyway. Big hole turns the crank, little hole is the sight hole. F mark is firing point, T is top. Something like that.

Rotate counterclockwise only, and the right hand exhaust valve has an automatic valve lifter so you may have to rotate it a bit past TDC to get the play on that one set.

(And ofcourse, there's 2 top dead centers, and only one where all the valves are closed!)

[Confucious]

:shock: :dontknow: doh ?

[Confucious]

Just a quickie......fairings and tank are off....took the valve caps off and had a peek inside - then i thought...where the fudge am I supposed to stick the feeler gauge ? Hmmm ! caps on again - try this weekend after finding TDC. BTW, not being too mechanically minded (as if we haven't all gathered that by now) :roll: - the exhaust valves are the two forward one's yeah ? with the tricky one being on the right side. I'm not sure yet but the previous bit about delivering the top end to a specialist is sounding better all the time :?

[Rubberchicken]

The exhaust side is the side where the exhaust's coming out of. :thumb:

But yeah, I get the idea you're diving headfirst into the deep end of the pool, just a bit...

[Scott]

But yeah, I get the idea you're diving headfirst into the deep end of the pool, just a bit...

Without your waterwings :shock:

Get that engine head to a shop mate...before we all collapse under the strain.

[Confucious]

Had a good read through the manual last night, and had visions of the odd spring or bolt being left on the garage workbench after everything was supposedly installed again....I mean this is like a job of biblical proportions to me so I think I'm going to check/adjust the valve clearances first and see what happens (hears taunts of wimp.....) Why would I get grey smoke from the RH exhaust when I start her up, but not when she's warm. Are we into heavy sheise here :?: .....I've been told valve guide seal...what catastrophe's await if this isn't seen to straight away :?: ... all mockery and advice most welcome :lol:

[Rubberchicken]

(hears taunts of wimp.....)
Nah. It's good to know when you're out of your depth.

Why would I get grey smoke from the RH exhaust when I start her up, but not when she's warm. Are we into heavy sheise here :?: .....I've been told valve guide seal...what catastrophe's await if this isn't seen to straight away :?: ... all mockery and advice most welcome :lol:
Not a lot.

My bike's been diagnosed with iffy valve seals a couple of years ago, and since then I've put half as much miles on her again, still running peachy.

Just keep a good eye on the oil. Especially after motorway blasts, because I suspect this is the cause of my bike getting a thirst for the black stuff when it gets (too) hot.

A bit of smoke right after startup shouldn't be a big problem, especially if it goes away when it's warm. Besides, the right hand exhaust valve is the one with the automatic valve lifter, that may even be the cause of it all.

I'd say just keep an eye on the oil, unless it uses a lot of oil in everyday riding I'd leave it alone for the time being.

[Confucious]

I gotta say with the tank and fairing off it could easily lead you into a false sense confidence....as CHAD said "waving a spanner purposefully" or similar.... Anyway, a dodgy sphincter got the better of me, so I stopped after checking the valves and spark plug :) Every thing was as it should be and needed no intervention from me. Took the point about the hex caps, so used a one meter hollow bar as leverage - round it went without any bother...After Rc told us about smokey seals I think I'm going to live with that, and keep an eye on things.....what's more, I took the advice about semi synthetic and hold rigorous control over oil levels ! So, those of our supportive members that have been glued to their screens :roll: can now breath normally - thanks people :thumb: .....now, where did I put the fairing bolts ?