Stalling when coasting in neutral, hard hot starts need throttle

Claviger

Aspiring Student
Joined
Jul 25, 2014
Messages
6,419
Location
Olympia Washington
Ride
'14 R3R, '02 Daytona 955i
I have had this issue since brand new, and I'm not the only one:

2007 Rocket III Classic, stalling when coming to stop?

Stalling when starting warm

brand new R3 stalls out in traffic - YIKES!

Occasional stalling coming to stop

How did you fix your stalling problem?

And there's a whole host of other search results.

Having tried ISCV reset endless times, fueling adjustments, ignition timing adjustments, TB balancing, linkage cleaning/oiling, and then of course all the engine changes, it always amazed me this problem persisted... until 5 minutes ago.

How?

Stupid simple fix, turn the gold screw further in (won't be gold on yours).. This screw sets the minimum opening of the actual primary throttle blades directly. The ISCV isn't the fastest acting device and I believe the stalling has always been a result of it's lag between actually opening the blades far enough to prevent stalling, and being just a tad too slow to prevent it. By turning the screw in you're preventing the blades from closing so far that the bike can't idle, ISCV doesn't know the difference.
20190930_124614.jpg
 

Claviger

Aspiring Student
Joined
Jul 25, 2014
Messages
6,419
Location
Olympia Washington
Ride
'14 R3R, '02 Daytona 955i
Haha,yeah, I always seemed to have missed the "turn the screw part", no idea how I overlooked that.
 

Idaho Red Rocket 3

Living Legend
Joined
Nov 22, 2008
Messages
4,891
Location
Nampa, Idaho
Ride
2006 R3 Standard Bagger w/Fairing
I have had this issue since brand new, and I'm not the only one:

2007 Rocket III Classic, stalling when coming to stop?

Stalling when starting warm

brand new R3 stalls out in traffic - YIKES!

Occasional stalling coming to stop

How did you fix your stalling problem?

And there's a whole host of other search results.

Having tried ISCV reset endless times, fueling adjustments, ignition timing adjustments, TB balancing, linkage cleaning/oiling, and then of course all the engine changes, it always amazed me this problem persisted... until 5 minutes ago.

How?

Stupid simple fix, turn the gold screw further in (won't be gold on yours).. This screw sets the minimum opening of the actual primary throttle blades directly. The ISCV isn't the fastest acting device and I believe the stalling has always been a result of it's lag between actually opening the blades far enough to prevent stalling, and being just a tad too slow to prevent it. By turning the screw in you're preventing the blades from closing so far that the bike can't idle, ISCV doesn't know the difference.
View attachment 79954

Gump ! You are a Genius. Thanks for the trick fix.
 

BeastMaster

.040 Over
Joined
Jan 14, 2019
Messages
99
Location
Ogden Utah
Ride
2012 rocket III roadster & 1995 Magna
I have had this issue since brand new, and I'm not the only one:

2007 Rocket III Classic, stalling when coming to stop?

Stalling when starting warm

brand new R3 stalls out in traffic - YIKES!

Occasional stalling coming to stop

How did you fix your stalling problem?

And there's a whole host of other search results.

Having tried ISCV reset endless times, fueling adjustments, ignition timing adjustments, TB balancing, linkage cleaning/oiling, and then of course all the engine changes, it always amazed me this problem persisted... until 5 minutes ago.

How?

Stupid simple fix, turn the gold screw further in (won't be gold on yours).. This screw sets the minimum opening of the actual primary throttle blades directly. The ISCV isn't the fastest acting device and I believe the stalling has always been a result of it's lag between actually opening the blades far enough to prevent stalling, and being just a tad too slow to prevent it. By turning the screw in you're preventing the blades from closing so far that the bike can't idle, ISCV doesn't know the difference.
View attachment 79954
Once again Claviger to save the day! Just wanted to say thanks man. Since I adjusted my valves (which were all very tight from the factory!), My idle lag in transition got unacceptable. Mostly during hot starts, but I could tell it was starting to become a problem In town to. I dug my way to the adjustment tonight because it was getting really bad. In 30 min my problem solved. I probably owe you a case of beer or what ever by now.
 

Prestaged

.060 Over
Joined
Dec 27, 2007
Messages
164
Location
Riverview, FL USA
Ride
2008 R3T
I have had this issue since brand new, and I'm not the only one:

Stupid simple fix, turn the gold screw further in (won't be gold on yours).. This screw sets the minimum opening of the actual primary throttle blades directly. The ISCV isn't the fastest acting device and I believe the stalling has always been a result of it's lag between actually opening the blades far enough to prevent stalling, and being just a tad too slow to prevent it. By turning the screw in you're preventing the blades from closing so far that the bike can't idle, ISCV doesn't know the difference.
View attachment 79954
Was having slow idle/stalling issues and after doing a search, stumbled onto this. Now all is good. This is a great place.
 

Dawg68

Nitrous
Joined
Apr 1, 2013
Messages
1,352
Location
Chilliwack B.C.
Ride
2014 R3R / 2017 R3T
Both my rockets since new. For me the issue only lasted for about 5000k on each bike and then the issue never returned.
 

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