No.
The TPS is on my list of things to consider, but I don't understand how it works, what it does or how to test it... so have been putting it off.

The revs have been fluctuating a bit on tickover, but this improved by replacing a rusty looking spark plug number 3.

How should I test theTPS? (I have a multimeter and a Haynes manual)

Brett

Hi All,

I seem to have fixed a misfire on my bike but it now has a VIOLENT stutter during full throttle in 1st and 2nd but not in any of the other gears? What could do that? It only stutters in the wheelie/power zone. Fine on motorway at full chat and fine at low rev's.
It's like the whole bike shuts down.

It used to misfire and drop from 4 to 3 cylinders which made the bike change in power 75%/100%. I seemed to fixed that by changing the spark plug caps, spark plugs and cleaning the carbs. But now it stutters between 0%/100% power when on full throttle, full torque in 1st and 2nd gear.

some details:
2001 FZS600, 36,000miles
Had new rectifier and regulator 18mths ago
New spark plug caps
Carbs fully stripped and cleaned and in good order
Scorpion exhaust fitted (has ran fine for the last 3years)
K&N filer (a bit old but apparently good for 50,000miles?)
Coil resistances are fine.
Spark plugs were new 18months ago and I just replaced number 3
recent oil and filter change.
Carb/engine rubbers are in good condition - no holes

Battery seems to drain if sat for over 1 month. Fully charging it doesn't seem to change the problem.

No obvious fuelling restrictions, although I've not looked too closely at the filters as it runs fine at full chat in 3rd gear and up?!

Any suggestions greatly received? Or could you suggest a goo garage that is handy with Fazers in London?

thank you!

Brett