Engine Lag below 3000 rpm

[brenwin]

After valve adjustment , replacing plugs I asked for the throttle bodies to be rebalanced . From the odd engine lag from time to time it’s a constant at low rpms after the rebalancing . Any suggestions on how to remedy would be greatly appreciated .

[Lucky Phil]

46 minutes ago, brenwin said:

After valve adjustment , replacing plugs I asked for the throttle bodies to be rebalanced . From the odd engine lag from time to time it’s a constant at low rpms after the rebalancing . Any suggestions on how to remedy would be greatly appreciated .

Was the TPS set?

Ciao

[LowRyter]

I hate these threads.  My bike was running perfectly.  Yesterday I took it out and was giving me a low RPM cough when I would take off.  Almost dropped it a couple of times. 

I'll change the plugs.  Perhaps go to a step hotter?

[docc]

6 hours ago, LowRyter said:

I hate these threads.  My bike was running perfectly.  Yesterday I took it out and was giving me a low RPM cough when I would take off.  Almost dropped it a couple of times. 

I'll change the plugs.  Perhaps go to a step hotter?

New plugs= good. Different plugs? Not likely an issue.

I change plugs and perform the Decent Tune-up every 5,000 miles. With the probable wear in my valve guides and hardness of the seals, the plugs really could change at 4,000.

Still, performing all of the full 6 step Decent Tune-up at regular intervals makes a significant difference. Until it's ready to do again . . .

[ScuRoo]

18 hours ago, brenwin said:

From the odd engine lag from time to time it’s a constant at low rpms after the rebalancing

04 Ballabio European models come with the O2 sensor 15RC ECU (I’m not sure about US version).

Check if yours does - anyway O2 sensors are a consumable item & the factory installed units were flawed (slow) - so change out & upgrade to the quicker Bosch LSH24 sensor.

Anyone who still has the original factory O2 sensor should change it.

The 15RC will adapt & it’ll run like butter smoother than you’ve ever experienced.

[Rox Lemans]

It's likely your TPS switch. Or they did a crap job on your throttle synch. If any coughing check your throttle boots. 

Common if the place you took it to doesn't work on FI or Guzzis a whole lot. 

[Paradiso]

It might be worth checking the cable run to the left hand side of the throttle bodies. It can come off the cam if there's too much play.

Sent from my SM-G925F using Tapatalk

[LowRyter]

15 hours ago, docc said:

New plugs= good. Different plugs? Not likely an issue.

I change plugs and perform the Decent Tune-up every 5,000 miles. With the probable wear in my valve guides and hardness of the seals, the plugs really could change at 4,000.

Still, performing all of the full 6 step Decent Tune-up at regular intervals makes a significant difference. Until it's ready to do again . . .

I was thinking that a hotter plug might last a little longer since the plugs get build up.  5k miles?  I like to go 10k when I adjust the valves and service the drive and tranny.  The PC makes it run well but it might be a tad rich.