Search

GREAT RIDES & STAYS!
Fab Ads
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 3 1 2 3
XT225 misfiring under load #115208 08/23/13 12:59 PM
Joined: Jul 2011
Posts: 2,112
Paul49 Offline OP
Platinum Member
*****
OP Offline
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.
Re: XT225 misfiring under load [Re: Paul49] #115210 08/23/13 01:05 PM
Joined: Jun 2011
Posts: 148
Knack Offline
Member L1
*****
Offline
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
Re: XT225 misfiring under load [Re: Paul49] #115211 08/23/13 01:09 PM
Joined: Jul 2012
Posts: 760
T
tugboat Offline
Gold Member
*****
Offline
Gold Member
*****
T
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
Re: XT225 misfiring under load [Re: tugboat] #115213 08/23/13 01:36 PM
Joined: Jul 2011
Posts: 2,112
Paul49 Offline OP
Platinum Member
*****
OP Offline
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.
Re: XT225 misfiring under load [Re: Paul49] #115215 08/23/13 01:56 PM
Joined: Jul 2011
Posts: 2,112
Paul49 Offline OP
Platinum Member
*****
OP Offline
Platinum Member
*****
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.
Re: XT225 misfiring under load [Re: Paul49] #115219 08/23/13 07:18 PM
Joined: Sep 2007
Posts: 5,915
alexd Offline
Platinum Member
*****
Offline
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
Re: XT225 misfiring under load [Re: alexd] #115220 08/23/13 07:24 PM
Joined: Jul 2011
Posts: 2,112
Paul49 Offline OP
Platinum Member
*****
OP Offline
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.
Re: XT225 misfiring under load [Re: Paul49] #115222 08/23/13 08:12 PM
Joined: Feb 2008
Posts: 1,175
deodom Offline
Platinum Member
*****
Offline
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
Re: XT225 misfiring under load [Re: deodom] #115224 08/23/13 11:45 PM
Joined: Sep 2007
Posts: 5,915
alexd Offline
Platinum Member
*****
Offline
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
Re: XT225 misfiring under load [Re: alexd] #115231 08/24/13 07:09 AM
Joined: Jul 2011
Posts: 2,112
Paul49 Offline OP
Platinum Member
*****
OP Offline
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.
Page 1 of 3 1 2 3

Web & Site Search
Google
 
Custom TO Customer
Specialty Resource and DONATE
Fab Ads
Boardcaster Updates

Board Upgrade: Board upgrade to V7.7.3 has been completed on Monday Feb 3rd 2020. Ride safely. Enjoy the new software!

Who's Online Now
0 registered members (), 8 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
ShoutChat Box
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Top Posters(All Time)
Reggie 11,645
Muniac 6,615
alexd 5,915
Az4x4 5,064
Moto Psycho 4,684
peejman 4,153
kris 2,366
JerryH 2,152
Paul49 2,112
Doc250 1,643
Forum Statistics
Forums38
Topics16,829
Posts151,287
Members6,003
Most Online279
Dec 6th, 2019
Newest Members
RickRandom, Krista, JimmyJam, gotwake5, Finchy
6003 Registered Users
March
S M T W T F S
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
Powered by UBB.threads™ PHP Forum Software 7.7.3