valve clearance questions (started as zxr400 questions) - Page 3

joe mc gonagle · #41 28th September 2010, 02:24 PM

Originally Posted by benny13

to measure the shims as you might know, you'll need a micrometer to do this, and yes is tedious, if you don't have one go and source new shims.

number should be stamped on shims

dangerdre · #42 28th September 2010, 02:29 PM

Originally Posted by joe mc gonagle

number should be stamped on shims

Yeh, I'll just be using feeler gauge. Think i have all the shims in place for the inlet cam. I'll check that and then start swapping over some of the shims onto the vacant spots on the exhaust cam to give me some starting point. not looking forward to this AT ALL!

joe mc gonagle · #43 28th September 2010, 02:37 PM

Originally Posted by dangerdre

Yeh, I'll just be using feeler gauge. Think i have all the shims in place for the inlet cam. I'll check that and then start swapping over some of the shims onto the vacant spots on the exhaust cam to give me some starting point. not looking forward to this AT ALL!

you ll more than likely have to buy more shims,as i said measure gaps ,look at shims [number stamped on existing shims] read chart it will tell you what existing shims need to be replaced with to get right gap,then you know what shims you need to order
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**chopper** · #44 28th September 2010, 04:11 PM

Originally Posted by joe mc gonagle

you ll more than likely have to buy more shims,as i said measure gaps ,look at shims [number stamped on existing shims] read chart it will tell you what existing shims need to be replaced with to get right gap,then you know what shims you need to order
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numbers on shims would only be accurate when new , most numbers wear off quickly anyway .

cosul · #45 3rd October 2010, 12:16 AM

Doing clearances on me 400 now.

measured all of them with feeler gauge.
looks like they,ve not bein done for a while
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they are all out of spec - and pretty tight.

could not measure cylinder no 1 Inlet. Too tight even to get feeler gauge in
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Could me valves be after getting damaged as result??

cosul · #46 6th October 2010, 09:32 PM

^ anybody ??

benny13 · #47 6th October 2010, 09:59 PM

Originally Posted by cosul

^ anybody ??

If your that worried them or you don't get a good responce from anyone, I would take them out and check against the specs on the manual.

my advice would be to wait for a genuine responce first though.
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eddiegeary · #48 26th October 2010, 03:17 PM

sent to bike away to be fixed and what has come back is that the cam and followers are worn, i have been advised to get a second hand engine but im just sick to death of throwing money at this bike

Motormike · #49 4th November 2010, 12:57 PM

Check it over with Chopper first. He knows what he is doing and it is always good to get a second opinion before splashing out lots of cash!

**chopper** · #50 4th November 2010, 01:10 PM

Originally Posted by cosul

Doing clearances on me 400 now.

measured all of them with feeler gauge.
looks like they,ve not bein done for a while
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they are all out of spec - and pretty tight.

could not measure cylinder no 1 Inlet. Too tight even to get feeler gauge in
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Could me valves be after getting damaged as result??

possible the valves have been damaged alright, try get alook at it through the inlet manifold.
if no clearance then step it out to maximum clearance and measure again,
btw...its very very typical on anything with zx in it to have little or no clearance, lads think i do just be harping on about it but clearances are acrucial part of a bikes servicing, esp on kwackers.

**chopper** · #51 4th November 2010, 01:12 PM

Originally Posted by eddiegeary

sent to bike away to be fixed and what has come back is that the cam and followers are worn, i have been advised to get a second hand engine but im just sick to death of throwing money at this bike

how badly worn?, a lot of kwackers wear cam lobes from new but still keep going, zzr11/1200s do it for instance, folowers are easy enough replaced with second hand ones

**chopper** · #52 4th November 2010, 01:15 PM

often seen zzr600s with 20000 miles on them need 16 shims,then remeasure, then need a further 10 changed again lol

FZRMutt · #53 31st January 2011, 12:40 AM

I have been reading this very informative thread. Thanks everyone!
Where are the pics?
I am intending to do valve job on two bikes in the coming month.
I am a first timer and I am intent on doing it myself! (Gotta learn sometime!)
FZR1000 Genesis and an FZR400. Badly need doing.
I have the following questions
1. What does a worn valve guide look like Pics Please? It would be handy just to see a picture.
2. Where can I go to get reasonably priced Shims?
3. Are some or all shims interchangeable? i.e. Can you swap shims from one bike to another?
4. Can you use shims from a broken bike on a newer bike? Do the shims wear with age? (I am guessing not?)
I am sure I will figure all this out for myself anyway but its always nice to hear from the old hands first!

**chopper** · #54 31st January 2011, 11:05 AM

Start on the 400 , the 1000 is a hoor .

FZRMutt · #55 31st January 2011, 02:47 PM

Originally Posted by chopper

Start on the 400 , the 1000 is a hoor .

I know and I suspect the small ends are effed as well!

benny13 · #56 18th July 2011, 11:42 PM

I'm started my fzx project a couple of weeks ago and tonight I cleared the bench and lobbed the engine atop of it. It badly needs a good clean etc, but I've checked the clearance again and she's only out by 7 from 20, which ain't bad thank fuck!!! I think I heard that the valves get tighter in the genesis engine, but I can swap all 4 inlets to suit each other, my question is should I just go away and get 4 shims to suit the end of the scale(looser) rather than tigher-middle scale?? I upload me readings and tell me what ya think! sound
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right can't upload sheet, I'll change to pdf tomorrow and load it then.
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also it has 42k miles on it, what ya reckon I could do to it before I clean it and lob it back in? before the strip down of the bike, the engine never smoked and ran very well. does it need anything?

i was 7 not 4 shims out

**chopper** · #57 18th July 2011, 11:46 PM

Originally Posted by benny13

I'm started my fzx project a couple of weeks ago and tonight I cleared the bench and lobbed the engine atop of it. It badly needs a good clean etc, but I've checked the clearance again and she's only out by 4 from 20, which ain't bad thank fuck!!! I think I heard that the valves get tighter in the genesis engine, but I can swap all 4 to suit each other, my question is should I just go away and get 4 shims to suit the end of the scale(looser) rather than tigher-middle scale?? I upload me readings and tell me what ya think! sound
To view pics on this biker's forum - your post count must be 2 or greater.

right can't upload sheet, I'll change to pdf tomorrow and load it then.
To view pics on this biker's forum - your post count must be 2 or greater.

also it has 42k miles on it, what ya reckon I could do to it before I clean it and lob it back in? before the strip down of the bike, the engine never smoked and ran very well. does it need anything?

what size shims ya need? id prob have em . defo go on the looser spec, itll give you longer before you need to do it again

**chopper** · #58 18th July 2011, 11:47 PM

have ya lifted the buckets on the fzx btw? arent they little bastards to get shims in and out of lol

2buckledrims · #59 18th July 2011, 11:48 PM

Originally Posted by benny13

I'm started my fzx project a couple of weeks ago and tonight I cleared the bench and lobbed the engine atop of it. It badly needs a good clean etc, but I've checked the clearance again and she's only out by 4 from 20, which ain't bad thank fuck!!! I think I heard that the valves get tighter in the genesis engine, but I can swap all 4 to suit each other, my question is should I just go away and get 4 shims to suit the end of the scale(looser) rather than tigher-middle scale?? I upload me readings and tell me what ya think! sound
To view pics on this biker's forum - your post count must be 2 or greater.

right can't upload sheet, I'll change to pdf tomorrow and load it then.
To view pics on this biker's forum - your post count must be 2 or greater.

also it has 42k miles on it, what ya reckon I could do to it before I clean it and lob it back in? before the strip down of the bike, the engine never smoked and ran very well. does it need anything?

The looser end of the scale will be good for a longer period of maintenance,you'll sacrifice a very slight bit of lift on the valves though

benny13 · #60 18th July 2011, 11:50 PM

Originally Posted by chopper

what size shims ya need? id prob have em . defo go on the looser spec, itll give you longer before you need to do it again

sound chopper, that's what i was thinkig alright, I'll check for size tomorrow evening and see what's needed. saying that me fzr1000 needs doing too I checked them last october but never changed them out by 3 shims
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so might get a lash of them altogether
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