Restoring Yamaha XJ600S 1998

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predrag80
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Region:: Romania
Motorcycles:: 1998 Yamaha XJ600S
Location: Timisoara
Romania

Tue Nov 22, 2016 10:04 am

Today arrived new goodies Image :
Ultrasonic cleaner. Bought from ebay and delivered from Germany.

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I thought I'll manage to put whole carb set in it but it is too short. Here are some dimensions:
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Tried it and it works well.

Second thing that arrived today are pilot jets No. 20
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And, since I don't have Colortune, I almost made one (actually my uncle did) out ot stainless steel.
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Now I am waiting for my colleague to find me a heat resistant clear epoxy resin in order to assemble it and we are back in business Image

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mikee112
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Motorcycles:: '99 Yamaha XJ 600n
Location: Essex, England
Great Britain

Tue Nov 22, 2016 1:21 pm

Predrag... You don't need the #20 pilot jets on Euro carbs, the stock ones are fine :)
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predrag80
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Tue Nov 22, 2016 2:09 pm

Well... nobody tried so I decided to try them.

Anyway, I decided to make connection pipes and T pipe between carbs out of brass and to put 2 o-rings on every side in order to avoid buying those awkward boots.

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zoli2750
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Tue Nov 22, 2016 2:27 pm

:)
from mine just fallen down the ultraschallkörpern this sunday,
after 10 years of use
it's an EMMI 40
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made nothing curious just suddenly the bizz was not so strong
rather a weak ziz
everthing is operational no damage in the circuits
:)
not know yet with what to glue it back, it's not the world,
just showing the inner life, I myself not opened yet so far

pedrag:
make the alufolie test, just for sure all the piezos working 100%
in mine the one on the right side was weak from the beginning
possibly the glueing was wrong there right out of the box
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predrag80
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Region:: Romania
Motorcycles:: 1998 Yamaha XJ600S
Location: Timisoara
Romania

Tue Nov 22, 2016 2:32 pm

Thank you Zoli. I'll make the test as soon as I go to the garage. On the other hand, if it does not fork properly, what can I do?! I am not electronic guy. Will run it till it cracks. And after that will try to find how to fix it.

P.S. try some Henkel epoxy. You will definitely find something in their program.

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zoli2750
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Tue Nov 22, 2016 2:37 pm

mikee112 wrote:Predrag... You don't need the #20 pilot jets on Euro carbs, the stock ones are fine :)
his carbs not euro carbs
the 20 pilots could be a good choice in the mountains
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predrag80
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Romania

Tue Nov 22, 2016 2:45 pm

I am living in Panonia valey. Altilude ~80m. So, there are no mountains in here. Anyway, I have 2 sets of carbs. One will be with 20 pilot jets and one with 17.5. I would like to see the difference.

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zoli2750
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Tue Nov 22, 2016 3:15 pm

ahh
:)
same plain as here

the old teachings says one should use some silver compound adhesive for better conductivity
but i think i will use simple 2 component epoxy from lidl
as i read more and more on the topic i suppose it will do the job
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predrag80
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Location: Timisoara
Romania

Tue Nov 22, 2016 3:21 pm

:-) I think that Lidl epoxy could be good choice. I am thinking of using it also for my "colortune". It can resist at +180°C. I think it will hold for 5 minutes.

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zoli2750
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Tue Nov 22, 2016 3:56 pm

I do not want to brake your enthusiams with the colortunes
it is indeed a good play for the curiosity,
years before I thought as well to purchase one for my car, others said it hasnt got all the horses :)

for me I build a synchrone tester from tubes,
at the end the best tools are the inframeter, my ears and using the popometer,
it takes a half a dozen rounds of screwing the bolts,
but I learned that the simplier is the better
after a good time of tryanderrors
the miriads of factors and possibilities of sypmtoms and causes,
everything turns out really simple

learned that full synchone of the carbs an low revs is not really necessary
what is important is the performance on load around 5 thousand an up,
what can not be tasted in a stationary way
our bike is an aircooled one, everything moves and changes in it as it's temperature changes
and everything is different on load
on low revs it needs just to be good enough to reach the operating levels whatever season is it currently
mine behaves totally different in jun and in sept,
these bikes are definitely old even the low mileage ones,
what is perfect on 1350 rpm won't necessary be good enough in 4th gear by overtaking

just felt the need to share this
:)
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