RH cylinder misfire

[Erwinmotorbike]

In regards to my stelvio ntx 1200 with 20000km I put a beetle map to it wonderful sooooo smooth huge improvement I was getting about 7.3L/100 after the beetle map it went down to 6.8/100. Mark from beetle said it should be better he recommended I adjust the valves .1 and .15 synch the bodies and reset the tps. I messed it up! I was not aware of the air bleeds so I cranked the adjustment screw ...the misfire came after this... kept seeing my manometer liquid get sucked away ... so I bought vacuum guages. I put in 2 new sparkplug new ngk caps switched left and right coils to no avail. I don't have intake leaks yet the left idling stutters sometimes 3 "pungs" in a row. 100% I know the bodies are synced at 4000rpm the idle is synced the tps is 4.8 ( and no I did not touch the sacred screw its butted against the linkage nor did I remove a ball joint. The bike runs awesome even at 1500rpm and strong but only at idle it " goes " thung thung" sometimes compression is 150 each I've checked and rechecked many times over and over. The CO trim is set to zero moving ot negative makes it worse when I go + 20 the misfire goes away. But I'm not riding it Like that because I'm pretty sure my milleage would be compromised. Please anyone?

 

[scottmastrocinque]

In regards to my stelvio ntx 1200 with 20000km I put a beetle map to it wonderful sooooo smooth huge improvement I was getting about 7.3L/100 after the beetle map it went down to 6.8/100. Mark from beetle said it should be better he recommended I adjust the valves .1 and .15 synch the bodies and reset the tps. I messed it up! I was not aware of the air bleeds so I cranked the adjustment screw ...the misfire came after this... kept seeing my manometer liquid get sucked away ... so I bought vacuum guages. I put in 2 new sparkplug new ngk caps switched left and right coils to no avail. I don't have intake leaks yet the left idling stutters sometimes 3 "pungs" in a row. 100% I know the bodies are synced at 4000rpm the idle is synced the tps is 4.8 ( and no I did not touch the sacred screw its butted against the linkage nor did I remove a ball joint. The bike runs awesome even at 1500rpm and strong but only at idle it " goes " thung thung" sometimes compression is 150 each I've checked and rechecked many times over and over. The CO trim is set to zero moving ot negative makes it worse when I go + 20 the misfire goes away. But I'm not riding it Like that because I'm pretty sure my milleage would be compromised. Please anyone?

Don’t shoot the messenger but Buddy, you’re screwed!

You have stepped into the FORBIDDEN land mine field topic here.

Nobody is going to help you with this.

Unfortunately, you are just one of many who have willingly trashed their own motorcycle by this unscrupulous cast of characters who promote this lunacy, and then you come here begging for help when it goes to hell. I feel for your pain.

You utilized unsupported software capable of totally bricking your ECU, to mess with a critical component of your motorcycle, (something you honestly know absolutely nothing about), then, you started messing with the intake system, not knowing anything about that either, and now your screwed over with no commercial support for the damage you’ve done.

If you had come here first and did some reading, you would have found this information. You should still read it very carefully, so that you actually understand
what you screwed with, how it really truly works, and how you are really supposed to perform the task you attempted and failed at. (Case in point: the TPS IS NOT “SET” TO 4.8 anything. That’s wrong).

Syncing Throttle Bodies- Stelvio 8V

thanks John. Maybe I can find someone with the equipment willing to help me do it here in Austin TX area. Ultimately I'll end up buying the gear. My bike has only 2800 miles so it go awhile just fine. Seems to vibrate like a Harley at idle, and remain a little rough until really smoothing...

www.guzzitech.com

All I can say is “Contact Beetle” in Australia. He will have to help you unscrew yourself from your mess, if he even can or will.

I and many others here, PAID $$$$ for our dyno-proven GTM PowerCommander and Autotune setups which are sold in the STORE here. My Stelvio has worked flawlessly for 10 years with it and I have cheerfully received free technical support directly from Todd (GTM), including periodic stored software map data reviews, when I needed it.

PC-V/AT300/GTM 5AM/7SM ECU Flash Tool

Power Commander V w/AutoTune-300 & GTM® ECU Flash Tool Programmer This is a FULLY dynamic system. Includes our GTM Flash Tool with the PC-V and AutoTune-300 – w/two Bosch wide band 02-sensors to replace the OEM narrow band 02-sensors. Note: The stock fuel system is NOT dynamic/adaptable like...

gtmotocycles.com

Sorry. This is a song we have seen here over and over and over. Funny, all these years those guys deny these issues ever happening, but your just the next guy, in a long list of people who have come here asking for help after doing this to themselves and breaking their own motorcycles.

No discussion is permitted about your issue here. See the information at the top of the page, 2nd sentence. (screenshot below)

Sorry Buddy.

 

[GTM®]

In regards to my stelvio ntx 1200 with 20000km I put a beetle map to it wonderful sooooo smooth huge improvement I was getting about 7.3L/100 after the beetle map it went down to 6.8/100. Mark from beetle said it should be better he recommended I adjust the valves .1 and .15 synch the bodies and reset the tps. I messed it up!

So by these first few steps, you didn't mess it up, the advice and stupidity you followed did. The charlatan and thief of maps strikes again! Set your bike to Euro valve specs, undo that map garbage you installed and look to the STORE tab above for solid direction. Scott answered you otherwise. This thread is locked and will be deleted today.