Nettet27. mar. 2012 · It basically runs fine under mild/strong acceleration or at full highway speed and seems to idle normally when the bike is started. However, when cruising along about 25-30 mph (in either 2nd or 3rd gear) it is always misfiring and sputtering pretty bad now (had a little hint originally and definitely getting worse now). Nettet18. des. 2014 · On the sides of the plenum, we have a similar issue with the oversized intake runners being a larger diameter than the factory ones. This isn’t as much of a problem as the throttle body, as you’re going from a smaller port to a larger one, but gains in airflow can be had by opening up the factory plenum to match the size of the gasket …
Engine misfires at low speeds Harley Davidson Forums
Nettet31. mar. 2003 · SMOOTH surface becomes reflective and sets up harmonic eddies along the lengths of runners (even stright). Basically trumpets... the longer the runner the … Nettet15. mar. 2024 · Shakes during idle that smooth out while driving can be caused by something as simple as bad motor mounts. It can also point to fouled spark plugs, worn … skateboard thing mechanics use
Rough Idle - Causes And How To Fix It Mechanic Base
NettetOnce all of the rough areas are grounded down, smooth and blend the entire runner so it is a smooth, continuous surface. Intake runners are to be smooth, however, do not … Nettet6. feb. 2009 · But as we don't deal with pure airflow in intake port smooth might not be good, rough surface and turbulence makes the boundary layer speed gradient greater, … Nettet2. feb. 2016 · 1) DO NOT ADJUST the Gap if Iridium tip plugs!!; replace the spark plug if the gap is out of specifications. Electrode gap standard (New): 1.0-1.1 mm (0,039-0,043 inch) 2) Replace the spark plug at the specified interval, or if the center electrode is 'rounded'. 3) Use only spark plugs: a) NKG: IZFR6K11. skateboard thrasher