| Author | Message | ||
     Advoutlander |
I have a 2008 xb12x, 18,000 miles. For the past 6 months I have been getting around 180 miles to a full tank, driving sensibly. This then dropped to 120 miles and my last tank was 95 miles. I always fill with 91 and do not aggressively ride. My tire pressure is correct, I replaced the spark plugs and leads a few months back. What could be causing the problem? | ||
| Uly_man |
The gidion pins have worn out. It is a well known problem on the XB motor. Its an easy fix though and costs about $50. I do a kit for $60 inc shipping. Just send me your PayPal address and/or bank details. (Message edited by uly_man on June 15, 2013) | ||
| Luftkoph |
oh no Uly Man has had a pint too many again | ||
| Uly_man |
Get it right. A gall. Pints are for wimps. | ||
| Advoutlander |
Gidion pins,are you taking the piss? | ||
| Advoutlander |
With eliminating that the fuel filter could be blocked, the service manual mentions a fuel pump puller is used to remove the fuel pump to get to the filter. Is it possible to remove the fuel pump without a puller? Where do I get a fuel pump puller from? | ||
| Advoutlander |
Can the fuel pump be removed without having to remove the rear wheel? I've also read some old posts on here about fuel pump strainers not being available or HD listing the wrong part? Can someone clear this up, I have a replacement fuel filter, just not a strainer. Do the O rings on the body of the fuel pump have to be replaced? | ||
| Hughlysses |
I'd say it's unlikely that the fuel filter would be blocked, especially with only 18,000 miles. A blocked filter would cause running problems (stumbling, lack of power, etc.), not bad fuel mileage. I'd suggest checking for codes using ECMSpy or similar. I'm thinking it's got to be a bad O2 sensor or something like that. | ||
| Tootal |
I'm with Hugh, a sensor could be bad including the O2 or temperature sensors. Check the wiring going to the sensor too. | ||
| Advoutlander |
Regarding the o2 sensor,is the special snap on socket really required to remove from the header pipe? How long does it take to remove from start to finish? If there is a bad sensor isn't it supposed to show up on the engine check light? If I plug in the american sportsbike plug to bring up error codes would that work? Can you guys tell me what exactly I need to use ecmspy, does it work on an 08? | ||
| Advoutlander |
I just examined my spark leads and they are fine. The spark plugs were only replaced 3000 miles ago, what do you think?  | ||
| Luftkoph |
no you do not need a puller for fuel pump,I cant remember if I took off the wheel,but you gently pry the pump out,that little sport bike shop in so. cal. has new O rings and strainer and filter,mine looked filthy at 23k heres an old vs new   | ||
| Tootal |
Had the bike been idling before you pulled the plugs? It's not easy on a Buell but you need to be riding at a constant speed, say on a lonesome highway, and then hit the kill switch and drop the throttle at the same time and then pull them out for a reading. If a sensor is slowly going out it will probably not throw a light as the computer is just reading the information it's given. If the sensor totally fails then it would throw a light. If you can get ecm-spy for the 2008's or tunerpro you can see what temperature your sensors are reading. A lazer thermometer comes in handy for checking their readings. Of course I'm talking about your temperature sensors. There's a head temperature and incoming air sensors. I'd check both of them against the readings on whatever software you end up using. | ||
| Reepicheep |
I just replaced my exhaust servo... I knew it probably wasn't working correctly for quite a while, but it wasn't throwing codes. It finally did start throwing them. When I put in the new servo, I gained 5 MPG. FWIW. For ECMSpy, you need a laptop with a working USB port, the ECMSpy software, the FTDI driver software for your operating system, and an ECMSpy cable (a USB to serial bridge). It will take a little fussing to get working but is fairly straightforward at the end of the day. The spark plugs don't look horrible, but a bit dirty, and one is a bit black, especially for 3k miles. So it would definately be worth checking sensors (head temp sensor, intake air temp sensor, throttle position sensor, and O2 sensors would be my first picks. | ||
| Yamafreak |
I would bet all tea in china that the plug on the left came from the front. Next plug change I will put a hotter plug up front. |
