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XT225 misfiring under load
#115208
08/23/13 12:59 PM
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Joined: Jul 2011
Posts: 2,112
Paul49
OP
Platinum Member
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OP
Platinum Member
Joined: Jul 2011
Posts: 2,112 |
Any best guesses?
Checked the Iridium plug, looks fine, bit sooty round the outer but electrode a nice tan.
Split, cleaned & wd40'd all electrical connections.
Tank off, emptied & checked for crud, refilled with top grade 98 octane fuel.
Still misfiring, most noticeable uphill under acceleration, seems to improve if I pull choke out?
Its a 2005 Brazil model all standard except for a K&N air filter.
Is the next step a carb strip? or is there an add to tank carb cleaner that works?
Any help appreciated, especially if you've suffered & cured a similar fault.
Current: 1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, 2016 Tiger 800 XRx.
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Re: XT225 misfiring under load
[Re: Paul49]
#115210
08/23/13 01:05 PM
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Joined: Jun 2011
Posts: 148
Knack
Member L1
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Member L1
Joined: Jun 2011
Posts: 148 |
Dirty carb or float issues?
94xt225-kenda 657s,blue,130/42.5/3 turns,z-1,spitfire shield,16t,resnork'd,mobil1,wolfman tankbag,LEDs,h4 HID, rebuild in process
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Re: XT225 misfiring under load
[Re: Paul49]
#115211
08/23/13 01:09 PM
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Joined: Jul 2012
Posts: 760
tugboat
Gold Member
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Gold Member
Joined: Jul 2012
Posts: 760 |
Hi Paul,
When you say 'misfiring', do you mean for like just one revolution so the bike carries on, or do you mean for several revolutions or more so that the bike staggers badly before it picks up again? How often does it happen?
Have you tried with the fuel cap released to rule out a blocked breather?
Quite honestly, it sounds more ignition related to me.
Geoff. 2 Serows now gone, best bikes I ever had. 2007 Transalp 650 "Red" Honda Vision and Beverly 350
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Re: XT225 misfiring under load
[Re: tugboat]
#115213
08/23/13 01:36 PM
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Joined: Jul 2011
Posts: 2,112
Paul49
OP
Platinum Member
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OP
Platinum Member
Joined: Jul 2011
Posts: 2,112 |
Hi Knack, Yes, not familiar with these carbs, I was ok with monoblocs, are these simple to work on? re-usable seals?
Hi Geoff Like it's missing a couple of beats in 10 then picks up but repeats it.
Seems like 3/4 throttle & more is when it happens going uphill at 40+ mph under load.
Current: 1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, 2016 Tiger 800 XRx.
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Re: XT225 misfiring under load
[Re: Paul49]
#115215
08/23/13 01:56 PM
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Joined: Jul 2011
Posts: 2,112
Paul49
OP
Platinum Member
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OP
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Joined: Jul 2011
Posts: 2,112 |
Anybody familiar with stripping the carbs on these wee beasties?
Looks like hardest job could be getting it off?
Current: 1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, 2016 Tiger 800 XRx.
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Re: XT225 misfiring under load
[Re: Paul49]
#115219
08/23/13 07:18 PM
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Joined: Sep 2007
Posts: 5,915
alexd
Platinum Member
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Platinum Member
Joined: Sep 2007
Posts: 5,915 |
Does the bike (when cold) start OK, and idle OK when warm?
Is there any dripping of fuel from the tube at the bottom of the float-bowl?
Is the air-filter clean?
I would answer these questions first, before moving to the next step...as they tend to point in the direction of where the problem MIGHT be.
Alexd
(one) 2006 XT225, (two) 2005 XT225, 2006 FZ1
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Re: XT225 misfiring under load
[Re: alexd]
#115220
08/23/13 07:24 PM
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Joined: Jul 2011
Posts: 2,112
Paul49
OP
Platinum Member
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OP
Platinum Member
Joined: Jul 2011
Posts: 2,112 |
Hi Alex,
Bike starts fine & idles fine.
No dripping fuel.
K&N air filter was new a few months ago.
Regards
Paul
Current: 1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, 2016 Tiger 800 XRx.
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Re: XT225 misfiring under load
[Re: Paul49]
#115222
08/23/13 08:12 PM
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Joined: Feb 2008
Posts: 1,175
deodom
Platinum Member
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Platinum Member
Joined: Feb 2008
Posts: 1,175 |
I would venture to guess it might be the K&N air filter. In my use of one on my old Z-1, it made it run quite a bit leaner and misfire until I richened up the carbs several jet sizes.
'07 XT225/Z1 mod/short snorkle/130-42.5-3 turns/Load Lord Rack/Vibrinator bar end weights/Padded Seat/kickstarter
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Re: XT225 misfiring under load
[Re: deodom]
#115224
08/23/13 11:45 PM
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Joined: Sep 2007
Posts: 5,915
alexd
Platinum Member
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Platinum Member
Joined: Sep 2007
Posts: 5,915 |
Next, and easiest thing to do...replace the spark plug. This very likely ISN'T the cause, but maybe and simple.
Alexd
(one) 2006 XT225, (two) 2005 XT225, 2006 FZ1
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Re: XT225 misfiring under load
[Re: alexd]
#115231
08/24/13 07:09 AM
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Joined: Jul 2011
Posts: 2,112
Paul49
OP
Platinum Member
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OP
Platinum Member
Joined: Jul 2011
Posts: 2,112 |
Yes, I'll have to get a new one, the spare I have is a DPR8EA 9, not sure if it's the oe for the xt.
Current: 1958 Ariel 650 FH, 2014 Tiger Sport1050, 1995 XT225 Serow, 2016 Tiger 800 XRx.
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