20 Mash Scrambler 400 discussion forum:

rough idle and stalling

rough idle and stalling

Bart said 2024-04-14 11:03

After 5-6 months in the garage with half a tank of gas, starts o.k. but when warm, it stalls. While riding seems to get too little gas (or too much air) because no direct throttle response. At trafficlights, it stalls. It only occurs when engine is warm; ´till then everything is fine. Any ideas? O2-sensor, fuelinjector or fuelpump? What is bank-2 on one cylinder engine (see below)? Mash Scrambler Model 2020 injection+ABS. Please help!

OBD info:
TP -11%
IAT 37 degrees
MAP 36 kPa
Sparkadv 8 degrees
STFT-1 0,0
LTFT-1 -5,5 to -10%
STFT-2 -0,8
LTFT-2 -9,4 to +29,7%
ECT 80 degrees
Fuelsyst OL-DRIVE
load PCT 0,0%

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