Bikes - Talk & Issues Newsworthy and topical general biking and bike related issues. No crapola! Need Help: Try Searching before posting |
![]() |
|
Thread Tools |
![]() |
#11 |
Noisy Git
Mega Poster
Join Date: Apr 2007
Location: Halifax/Leeds
Posts: 26,645
|
![]()
Don't soak the floats in carb cleaner and be careful of rubber parts
__________________
Currently Ex Biker
Now rebuilding a 63' fishing trawler as a dive boat |
![]() |
![]() |
![]() |
#12 |
Guest
Posts: n/a
|
![]()
Thanks for the heads up.
|
![]() |
![]() |
#13 |
Member
Mega Poster
Join Date: Jul 2008
Location: here as devil's advocate
Posts: 11,569
|
![]() |
![]() |
![]() |
![]() |
#14 |
Guest
Posts: n/a
|
![]()
How can I tell if the needles / emulsion tubes are worn?
|
![]() |
![]() |
#15 |
No, I don't lend tools.
Mega Poster
Join Date: Jul 2003
Location: Skunk Works, Nth London
Posts: 8,680
|
![]()
Take the diapragms and slides out of the carbs and examine the needles carefully, there will undoubtedly be some polished areas on them, but if they're visibly worn you should be able to see it. The tubes should be perfectly round but if there's wear there will ovaling on the side of the tube toward the engine. Unless it has high mileage or if Dynojet needles, (otherwise known as "carburettor files"), have been fitted, the the symptoms you're describing wouldn't make me suspect these parts initially.
__________________
If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst" |
![]() |
![]() |
![]() |
#16 |
Noisy Git
Mega Poster
Join Date: Apr 2007
Location: Halifax/Leeds
Posts: 26,645
|
![]()
I don't think the zx9 was one of the worst culprits for emulsion tube gouging, they cause a boggy slobbery rich feeling as a transitional thing when coming up from idle to midrange if worn.
__________________
Currently Ex Biker
Now rebuilding a 63' fishing trawler as a dive boat |
![]() |
![]() |
![]() |
#17 |
Guest
Posts: n/a
|
![]()
Mine pulls like a train as soon as you give it more than 1/10 throttle but for cruising around at 30mph and even 40mph it's a joke. Going to pick up some washers to shim the needles and may even get a +4 ignition advancer as well depending on funds but only after the essentials have been done and it's running smooth, or at least as smooth as a 9 can low down.
Forgot to mention. It's the E1 I've got which apparently has pretty sensitive carbs. Last edited by Dunn-y; 06-03-14 at 08:22 PM. |
![]() |
![]() |
#18 |
Noisy Git
Mega Poster
Join Date: Apr 2007
Location: Halifax/Leeds
Posts: 26,645
|
![]()
Is it surging at all? That's generally a strong sign of lean running like blocked pilot circuits.
__________________
Currently Ex Biker
Now rebuilding a 63' fishing trawler as a dive boat |
![]() |
![]() |
![]() |
#19 |
Guest
Posts: n/a
|
![]()
Ultrasonic clean the carbs? Not too expensive or if they can be separated I will do it for a fiver.
I find with a good cleaning solution the ultrasonic cleans really well, it is in fact why I bought my unit, set time temp and timer, go have a tea and come back to clean carbs, blow through with air and at least you know youve got everything. Also good for engine parts before you put them in an engine.. Anyway, maybe ask the guys at redmonkey? |
![]() |
![]() |
#20 |
Guest
Posts: n/a
|
![]()
I think surging is probably the best way to describe it. It's like riding a kangeroo. But if I then blip the throttle, it revs up fine but then it will dip down below normal idle speed before returning to 1000 - 1400rpm. (Yes, the idle is that rough)
|
![]() |
![]() |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Running rough | minitwin49 | SV Talk, Tuning & Tweaking | 1 | 21-02-11 03:13 PM |
rough running ? | mikey devon | SV Talk, Tuning & Tweaking | 11 | 21-03-09 12:07 AM |
Running rough when hot | svdemon | SV Talk, Tuning & Tweaking | 3 | 13-08-08 07:44 PM |
Running rough, running out of ideas. | Sarj | SV Talk, Tuning & Tweaking | 17 | 04-12-07 06:45 PM |
Running Rough? | mike_b | SV Talk, Tuning & Tweaking | 3 | 20-12-06 11:38 PM |