0
![Not allowed!](http://www.nestreetriders.com/forum/images/buttons/down_dis.png)
![Not allowed!](http://www.nestreetriders.com/forum/images/buttons/up_dis.png)
My (new to me) has a high idle (around 4k). I'll be checking and adjusting the valves first, since who knows when that was last done, but after that I'll be looking at the carbs. I remember seeing an ad on craigslist for ultrasonic carb cleaning (I think for $40?), but I cant find it anymore. Anyone do this? Any recommendations on whether thats even a good idea, or should I just disassemble and spray it down with an aerosol/check and clean the jets?
Thanks! I've owned this bike for less than a month and it already looks like I've got plenty to work on this winter haha
Sent from my SM-N910P using Tapatalk
Thanks - people check for leaks there by spraying starting fluid in that area right?
There are carb sync ports that should be capped on the intake boots, if those cracked/went missing that'd raise the idle. There are also o-rings under the carb caps that like to vanish during carb maint...
head to harbor frieght and buy an ultrasonic cleaner for 50$? with coupon. you'll use it again and again. I use 50/50 simple green and water.
hmmmm......
Someone may have jacked the idle stop to get around plugged idle circuits and intake air leaks?
Seems likely, but at this point I really know nothing. I let it warm up before messing with the idle stop, but apparently to really warm up you need to ride for 15 minutes, not just let it sit for a few.
- - - Updated - - -
Seems likely, but at this point I really know nothing. I let it warm up before messing with the idle stop, but apparently to really warm up you need to ride for 15 minutes, not just let it sit for a few.
Steppum 1: Make sure it's actually firing up and running on both cylinders even when cold. Fire it up from cold, keep RPM's lowish if possible, check headers to see if both begin to warm up evenly. If not, you know you've got an issue with one side vs the other.
Steppum B: Check idle screw, missing carb sync ports and vacuum leaks... as you said, starter fluid (or even wd40) can be misted over the carbs to see if the rippums change.
That'll give you a quick 5 minute diagnosis to see what direction you need to start going in.
Last edited by OreoGaborio; 10-23-18 at 05:11 PM.
-Pete LRRS/CCS #81 - ECK Racing, TonysTrackDays
GMD Computrack Boston | Pine Motorparts/PBE Specialists | Phoenix Graphics | Woodcraft | MTag-Pirelli | OnTrack Media
The Garage: '03 Tuono | '06 SV650
These look pretty bad. I couldn't tell if there are cracks for sure, but the rubber is flaking away from the steel and when I sprayed starter fluid in the area, after a slight delay rpm went from around 2k up to 5k with no throttle.
Sent from my iPhone using Tapatalk
^^ There you have it.
+1 on the HF ultrasonic cleaner. I just use some diluted Simple Green for the bath, then dry and blast some carb cleaner or brake cleaner through the passages. No doubt you will find some other grievous situations inside the carbs when you get them off and apart.
I had a similar experience with a KZ550 a few years back. Once sorted, it was a great running bike.
Last edited by whynot; 10-24-18 at 08:52 AM.
And don't believe everything you think.
Looking at pictures online, the hf cleaner looks pretty small. Do the carbs need split to fit?
Sent from my SM-N910P using Tapatalk
-Christian LRRS/CCS HasBeen ECK Racing
2011 Pit Bike Race CHAMPION!
Where are you located? I've got a tank that can handle full inline four racks.
On what to put in the tank, I prefer distilled water and just a touch of that fru-fru, fancy no dyes no perfumes dish detergent to break surface tension. It takes longer to clean, but who cares? Put rack in, push button, walk away. I come back every half an hour to inspect, and push the button again if required. Heat helps, if your cleaner doesn't have a heat function don't worry, again it'll just take longer and will eventually heat up on it's own. Using just water means your cleaner has no chance of etching aluminum, reacting poorly to plastics, swelling any o-rings, etc. You don't have to be as critical about tearing the rack down to remove stuff sensitive to harsh chemicals, if you leave the rack in for a day it's not going to discolor, it's just easier.
If East Providence is convenient to you I have an ultrasonic cleaner in my shop, you can drop them off with me and I'll run them through.
I went to MMI I know what Im doing here chief