X9 Owners & Riders Club
August 19, 2018, 01:32:42 *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: The DONATE button below isn't working since the server move. To donate use the one on the web pages. Thanks.
The Gallery is down temporarily, Jim is on the case and will get it fixed next week-ish. Thanks Jim.
 
   Home   Help Website Gallery Login Register Donate  
Pages: [1]   Go Down
  Print  
Author Topic: X10 350 not keeping idle when cold  (Read 261 times)
dado099
CBT
*
Offline Offline

Posts: 51


« on: August 03, 2018, 16:24:11 »

Hi,
just having this new issue:
When starting at the morning (engine totally cold) it starts, but idle is not stable and after about 30 seconds engine always stop. Then after restarting everything is fine.
Starting from hot no issue.
I had the injector cleaned in ultrasonic bath because engine totally died two months ago.
Any guess ?
Is injector clogging again ?
Thanks in advance.
Logged
spannerman
Super Member
Full Cat A
*
Offline Offline

Posts: 3556



« Reply #1 on: August 03, 2018, 18:22:39 »

My Beverly 350 had a green coloured suppressor cap which needed upgrading, very difficult to remove without cracking it. Have a look at it, it is hard to put back on the plug top properly. It could be not a good fit and under the cold start it does not make good contact because of the increased vibration.
Logged

Dave Weller, Chatham
FJS600 Silverwing 2010.
Dave Milnes
Administrator
Stunt Rider
*****
Offline Offline

Posts: 20278


Fylde Coast


WWW
« Reply #2 on: August 03, 2018, 19:20:31 »

You shouldn't have dirt in the fuel these days and it doesn't deteriorate like it used to. Not in the UK so not even in Italy!
Sound more electrical to stall always after a pre-set time interval. Something thermal so check out that plug cap.
Logged

'04 X9 500 Evo in YELLOW - LED's, K&N, twin lights, bleepers...
'12 NC700D Integra in Cherry Red, K&N, panniers, bleepers...
Mottza
Administrator
Cafe Racer
*****
Offline Offline

Posts: 2117



WWW
« Reply #3 on: August 03, 2018, 21:52:07 »

Lambda sensor maybe
Logged

2014 Honda Forza 300 - Previous: 2003 X9 250SL, 2002 Aprilia Leonardo 250. 2004 Piaggio B125 and  Peugeot Ludix 50
BikeSafe
France 2009 & 2018. Betws-y-Coed 2013, Yorkshire Dales 2014, Forest of Dean 2015,  West Country 2016/2017, Norfolk 2017 & Peak District 2018! 10 years of Pie and Mash Rides!
The Bern
Provisional
**
Offline Offline

Posts: 405



« Reply #4 on: August 03, 2018, 22:04:31 »

Suppresor cap (if it has a resistor in it)
Logged

Burgundy 01 Honda Silverwing 600  Telford & beyond
roadster
Provisional
**
Offline Offline

Posts: 356



« Reply #5 on: August 04, 2018, 08:30:15 »

My first guess would be an accumulation of deposits in the inlet tract in the region of the extra air valve ( idle control valve) and butterfly. Might be worth taking it off and cleaning with carb cleaner spray. This is fairly common when breathers are routed back into the inlet and you might also have an air filter which is excessively oily. The idle system ( hot or cold ) is a closed loop feedback system which should always maintain the idling at a set rpm. If it can't do that the air control valve is the thing most likely to be sticking a bit. Having said that if the injector has played up before you can't rule it out.
Logged
Mike H
Rider for the Ride
Cafe Racer
***
Offline Offline

Posts: 1728


X10 350ie Executive & Ural cT


WWW
« Reply #6 on: August 04, 2018, 09:01:02 »

My white one has the later improved HT lead and cap, however as above still difficult to make sure it's clicked on plug properly, I didn't one service after that it could misfire and do odd things. To be fair tho it managed an 850 miles tour like that.
Logged

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.
dado099
CBT
*
Offline Offline

Posts: 51


« Reply #7 on: August 05, 2018, 16:17:59 »

Hi guys,
thank you very much for the contributes, you are wonderful.
As many suspected suppressor cap, so first try:
new suppresor cap with new cable set and new spark plug:
same behaviour.
2nd: butterfly dismounted and full cleaned:
same behaviour.
Now I suspect two things: partially clogged injector or contaminated fuel.
Next try is to almost empty the tank and make a new fill from another pump than usual.
If this will not cure, I'm going to replace injector because I found it on ebay for only 30 euros.
I will keep you updated.
Thanks again
Logged
dado099
CBT
*
Offline Offline

Posts: 51


« Reply #8 on: August 06, 2018, 15:46:28 »

Mmmmh,
Thinking I'm getting near.
I noticed a rubber bad condition joint from butterfly to head.
If i get moving it at idle, it becomes unstable.
Just ordered a new coupling and let's see.
Logged
Dave Milnes
Administrator
Stunt Rider
*****
Offline Offline

Posts: 20278


Fylde Coast


WWW
« Reply #9 on: August 07, 2018, 06:39:31 »

A split inlet manifold? This used to be a problem on 125 and 250's with carbs when the hard rubber manifold perished and cracked. Never known of it since Fi became the norm. Well spotted.
Logged

'04 X9 500 Evo in YELLOW - LED's, K&N, twin lights, bleepers...
'12 NC700D Integra in Cherry Red, K&N, panniers, bleepers...
dado099
CBT
*
Offline Offline

Posts: 51


« Reply #10 on: August 07, 2018, 18:11:38 »

Logged
dado099
CBT
*
Offline Offline

Posts: 51


« Reply #11 on: August 07, 2018, 18:23:31 »

BINGO !

Logged
Mike H
Rider for the Ride
Cafe Racer
***
Offline Offline

Posts: 1728


X10 350ie Executive & Ural cT


WWW
« Reply #12 on: August 08, 2018, 21:28:33 »

Luv it when a plan comes together. 
Logged

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!