needle jet question please

andy88 · Post by **andy88** » Sat May 28, 2016 9:22 pm

Hi all....need a little help and all info is welcome...
Riding 1992 fzr1000 ru streetfighter.. No fairings etc.
Stock items are...
Carbs,original jetting
Airbox,complete with standard filter
Downpipes & exup valve..well maintained.
Standard gearing front/rear sprockets..

I have exhaust link pipe with aftermarket round can.

Ive noticed over last few months that my fuel economy is basically sh#t, and power has dropped from around 6200 rpm..i purposly stayed off the bike for a week, and when i got back on, she was purring upto 6200, then had to really really push her to go more,,opened the throttle and she basically bogged....power isnt just there now.

I have also randomly started her, at silly times,(neighbours not happy)

WITHOUT choke, and she starts on the button. From cold..
Do i need new tubes?????

I have also read on the net, from various other sites, dedicated to fzr owners etc,and streetfighter forums, that if you remove the fzr fairings, this can disrupt air flow to the filter/carbs and cause high speed issues, as the air isnt flowing smoothly into the filter... Can this be my problem, and is there a fix.

I will be replacing tubes. When i find a good source. But also need to address air filter/air intake issues if there are any due to fairing removal.

Any advice regarding these 2 issues would be appreciated as im missing out on rpm and power.

Thanks.... Andy

Post by **Stig** » Sat May 28, 2016 9:50 pm

I can get Mikuni emulsion tubes if you need them

andy88 · Post by **andy88** » Sun May 29, 2016 10:03 am

cheers stig....

Whats the turnaround on them, and full price, obviously with postage to sunny Burnley, lancs..??

Payment through p/pal or??????

andy88 · Post by **andy88** » Sun May 29, 2016 10:30 am

Not sure if its just tubes or both, but if im changing one, i may aswell do needles and jets at same time, save me having to keep ripping carbs off the bike...makes sense really.

Will also be re setting float height,,but not sure of a proper height.....
Some say 14mm, 18mm, and read online someone set theres at 22mm,and ran fine??????.

Do i go with the haynes settings, or is it more trial and error...

Post by **Stig** » Sun May 29, 2016 11:25 am

Just had a look at stock. I have Toobs but not needles. I can get them for the end of the week if needed tho

As for floats see info in link below

http://www.exup1000.co.uk/tech_info_are ... ntoobs.htm

andy88 · Post by **andy88** » Tue May 31, 2016 4:46 pm

Hi all.....just ripped through my carbs today..started at the top..

First off were diaphragm tops..removed slide & needles. Checked needles and tubes for wear....nothing. Perfectly round, no scoring etc.needle washer set to third groove, as standard..checked this in haynes etc, and it states that there should also be a washer.. I have circlip and plastic ring thing, no washer..checked rest of carbs,again no washer but needles and tubes are mint..
Cleaned out this side of carbs. Re assembled and went to the float bowl.
Again stripped,cleaned, assembled..now to check my float height..
W.T.F....8MM or there abouts...anyway, set height to 14mm as per how to on tech help...thanks....re assembled, put bike together and fired her up..adjusted tickover, alls fine, now needs chike to start properly..
Also, she smells different now, not petroly like before. Revs fine and settles back to 1010 about.

Haven't had chance to road test her yet, but going back to the needle washer, am i missing something??? And why such a low float level?????

Any ideas anyone??
1992 ru exup

Post by **Stig** » Tue May 31, 2016 8:03 pm

From experience most don't have the washer.
Only carbs I've seen with the washer are where a Dyno jet kits been fitted. The washer is used as a half setting for fine tuning

andy88 · Post by **andy88** » Tue May 31, 2016 8:35 pm

Cheers stig........as always... Will update on performance tomorrow,,, next step, , sync carbs......need gauges and contemplating morgan protune 2....keep ya all posted..

andy88 · Post by **andy88** » Wed Jun 01, 2016 3:21 pm

Hi all...bike pulling a lot better now..BUT,,,temperature is rising a lot more now,,used to hang at about 20 to if you will on the gauge, it now climbs up to just over 10 to when stood in traffic. Start riding again and she cools down slowly. Rad is fine, and rear filler bottle is set to correct level, with 50/50 water and coolant. Why is my temp rising since i adjusted float heights....???.

Do i need to re adjust my floats, fuel air screws was re set at 3 turns, which it was at when i screwed them in..only other thing ive touched is float height,,.... Any ideas.???

jim · Post by **jim** » Fri Jun 03, 2016 1:47 pm

Stig wrote:I can get Mikuni emulsion tubes if you need them

Hello. I lack the emulsion tubes for my FZR 1000 model 2 GH year 88, it is possible to buy it somewhere?

Post by **Stig** » Fri Jun 03, 2016 4:25 pm

http://www.allensperformance.co.uk

Very helpful. They have them in stock

jim · Post by **jim** » Fri Jun 03, 2016 6:51 pm

Stig wrote:http://www.allensperformance.co.uk

Very helpful. They have them in stock

Thank you Stig. I just do not think I can find them on the page.

Post by **Stig** » Fri Jun 03, 2016 7:37 pm

Emulsion toob code is 483 YO
Might be easier to email them as you're overseas

If for any reason they won't post overseas you can send them to me and I'll forward them on to you

jim · Post by **jim** » Fri Jun 03, 2016 7:41 pm

Stig wrote:Emulsion toob code is 483 YO
Might be easier to email them as you're overseas

If for any reason they won't post overseas you can send them to me and I'll forward them on to you

Thanks

jim · Post by **jim** » Fri Jun 03, 2016 8:29 pm

jim wrote:
Stig wrote:Emulsion toob code is 483 YO
Might be easier to email them as you're overseas

If for any reason they won't post overseas you can send them to me and I'll forward them on to you
Thanks

Now I have sent an email, then we will see what he says