Page 1 of 2
Pipe colour
Posted: Fri Jan 01, 2010 6:41 pm
Author: mikey
Recently fitted my pattern 4 into 2 on my Z1000A2 done about 200 miles
and noticed no 1 & 4 have gone a real deep blue colour, no 3 has a real yellow tinge to it and no 2 has a mild yellow tinge to it, is this indicating
that all 4 cylinders are running at different temperatures?
Posted: Fri Jan 01, 2010 7:06 pm
Author: wilsonsjw11
Mikey
Carbs will probably need balancing,but check valve clearances before checking carbs.
HAPPY NEW YEAR TO YOU
Regards
Steve
Posted: Fri Jan 01, 2010 7:51 pm
Author: mikey
Cheers steve was thinking along those lines.
And a happy new year to you
Posted: Fri Jan 01, 2010 8:45 pm
Author: PAULJAC47
Hi Mikey,A happy New Year To You,Get hold of a Gunson colortune good place to start with mixture issues,get some blue away to get rid if discolour
always run up engine briefly at first and build up temp gradually to help with dis colouration, though with single skin exhausts and unleaded running hotter may be unavoidable.Cheers Paul J..
Posted: Fri Jan 01, 2010 10:14 pm
Author: mikey
Hiya paul cheers mate and a happy new year to you
not to worried about the dis coloration of the pipes as i think it adds
character and shows its being used, just somethings amiss due to
the variation in colors of the pipes.
Posted: Sat Jan 02, 2010 12:09 am
Author: m1ks
Noticeably blue means running hot and lean.
A yellowish tinge is indicative of a 'near enough' mixture, not quite so cut and dried as if you ritually abuse your right hand, (throttle, that is, keep on track everyone please), then blue hot pipes can be 'normal' as it were.
First of all, check and set valve clearances, then, as been mentioned use a colourtune to set the mixture, (after a carb clean if it's been a while or been stood any length of time), then balance the carbs and all will be good.
Re the blu-away, does that work and where does one aquire such a substance?
I've never found anything to remove the blueing and while the colour doesn't bother me personally it's an annoyance that you lose the ability to see if it occurs agsain in the future the, 650 has some blueing on the pipes from having pods on without being rejetted when I got it and subsequently running lean and hot.
Posted: Sat Jan 02, 2010 7:59 am
Author: mikey
Recently rebuilt the carbs with overhaul kits and had them
ultrasonically cleaned, but it does sound like i have a loose shim
so that be first port of call valve clearences and then balance carbs
should have done this when i done carbs but you know what its like time etc
Posted: Sat Jan 02, 2010 8:06 am
Author: phil churchett
m1ks wrote:Noticeably blue means running hot and lean.
A yellowish tinge is indicative of a 'near enough' mixture, not quite so cut and dried as if you ritually abuse your right hand, (throttle, that is, keep on track everyone please), then blue hot pipes can be 'normal' as it were.
First of all, check and set valve clearances, then, as been mentioned use a colourtune to set the mixture, (after a carb clean if it's been a while or been stood any length of time), then balance the carbs and all will be good.
Re the blu-away, does that work and where does one aquire such a substance?
I've never found anything to remove the blueing and while the colour doesn't bother me personally it's an annoyance that you lose the ability to see if it occurs agsain in the future the, 650 has some blueing on the pipes from having pods on without being rejetted when I got it and subsequently running lean and hot.
Re; the blu-away. There has been some discussion in the past on here, i think Bill [bigmac103] has used it.
4 into 2
Posted: Sat Jan 02, 2010 8:37 am
Author: paulstrees
Happy New Year to all of you
I agree with Paul about the Colortune but don,t waste your money on blue away I,ve tried it, it doesn,t work
Chees
Paul
Posted: Sat Jan 02, 2010 10:12 am
Author: kev edwards
just a tune up needed here,blue away not worth a bean,as all you are doing is constantly polishing a layer of chrome off.
Posted: Sat Jan 02, 2010 10:41 am
Author: mikey
Yes kev i know having being in the polishing and plating trade
30 years bottom line is chrome aint heat resistant despite
all the miracle claims polish companies make
and besides dis coloration adds character to a bike.
Posted: Sat Jan 02, 2010 3:12 pm
Author: mikey
Right thought id check valve clearences today found a 3 were loose and 1 tight but with the small handful of shims was able to sort them bar one,
now with my grasp of maths

i worked out i needed a shim size of 250
which i had, but put it in and was to tight so i guess i would need a shim of 245 or 240, and am i right in thinking the club runs a shim exchange service.
Posted: Sat Jan 02, 2010 3:18 pm
Author: floydsz1
Hi Mikey,
Give jerry a shout and he will sort you
Posted: Sat Jan 02, 2010 3:21 pm
Author: mikey
Ok cheers mate
Posted: Sat Jan 02, 2010 3:26 pm
Author: baz
mikey wrote:Right thought id check valve clearences today found a 3 were loose and 1 tight but with the small handful of shims was able to sort them bar one,
now with my grasp of maths

i worked out i needed a shim size of 250
which i had, but put it in and was to tight so i guess i would need a shim of 245 or 240, and am i right in thinking the club runs a shim exchange se
rvice.
hi mike, if your stuck pal ive got a good selection of shims.