2004 V11

[Kiwi_Roy]

Pull the plug caps and measure the resistance from cap to chassis, they should read quite similar.

Check the temperature sensor as someone already mentioned the RH one has a habit of breaking and falling out.

It went from running fine to crap right?

 

 

 

Sent from my shoe phone!

[andrei]

Zackly .

[mo-biker]

Plugs could be sooted from rich running while cold starting if its been done 2 or 3 times without a run, so don't read too much into them. How old is the fuel filter. Clean and check every contact you can find. Free/cheap/simple stuff first.

[gstallons]

Not new , had it for the last 6000 miles . it was running fine , went on a 1500 mile trip a while back , didn't miss a beat . Going to Walmart to pick up some plugs shortly . Noticed that when I work the left injector manually , it revs better than the hand-throttle ? Sounds like Throttle bodies , TPS maybe ?

How do you work the injector manually ? What brand spark plug are you buying ? 

[GuzziMoto]

 

Not new , had it for the last 6000 miles . it was running fine , went on a 1500 mile trip a while back , didn't miss a beat . Going to Walmart to pick up some plugs shortly . Noticed that when I work the left injector manually , it revs better than the hand-throttle ? Sounds like Throttle bodies , TPS maybe ?

How do you work the injector manually ? What brand spark plug are you buying ? 

 

I think he is talking about turning the left hand throttle butterfly, not the actual injector.

[Kiwi_Roy]

Have you checked the throttle balance, you say it revs better when you work it by hand.

10 ft of tube, a stick and some engine oil is all you need.

[dangerous]

2004 LeMans . Starts no problem ( cold ) idles quite well , won't rev much above 3 k , starts surging , running on one cylinder , stalls as she warms up , stalls , Any ideas ?

might I say try a leak down test (not compresion as it wont show a burnt valve) 

[vuzzi]

Check the intake rubbers, they may come off