hi, clayt...yes thanks for that ile give it a chk over this wkend and check all that out?....the bikes been kept nice and dry though in me garage!..like i said not been used for a few wks?..just hope its not picked up the...red stutttttering virus" ....am hoping its just my plugs?..still got originals in ,but only done 6700 miles from new !!..
Hi everyone, I've been reading this thread and my fazer has similar problems. I've not got the flat spot, but around 8000 - 9000rpm the bike stutters before picking up again. This is when I crack the throttle open quickly from, say 7000rpm. If I roll on slowly, the stutter is still there but less noticeable. If I accelerate from say 2000 - 10000 rpm, the acceleration is normal, no stutter.This happened after I changed the air filter and (foolishly) added a small amount of Redex carb cleaner.Before this the bike was running a bit rich, but other than that fine.So any advice where to start looking would be welcome.I can do a few basic maintenance tasks, but not things like stripping carbs.I did think about putting the old air filter back in to see if that made a difference.Cheers!
I will try the filter back in at the weekend and let you know how I get on.I just had a thought though. A friend checked the bike out for me a few weeks ago and commented that 1 cylinder was running hotter than the others (down pipe was noticeably hotter from startup). The other three cylinders were running a little rich(petrol smell) I will check the plugs at the weekend to to confirm this. Anyway a lean mixture would get even leaner with a new filter, so I wonder if one cylinder is too lean at high rpm and is causing the stuttering? assume a carb balance may be the simple answer as in the long term, I cant simply stick the old, clogged filter back in, to force the bike to run rich.Does this sound plausible though??
Quote from: cnw180 on 07 November 2012, 11:03:04 pmI will try the filter back in at the weekend and let you know how I get on.I just had a thought though. A friend checked the bike out for me a few weeks ago and commented that 1 cylinder was running hotter than the others (down pipe was noticeably hotter from startup). The other three cylinders were running a little rich(petrol smell) I will check the plugs at the weekend to to confirm this. Anyway a lean mixture would get even leaner with a new filter, so I wonder if one cylinder is too lean at high rpm and is causing the stuttering? assume a carb balance may be the simple answer as in the long term, I cant simply stick the old, clogged filter back in, to force the bike to run rich.Does this sound plausible though?? ummmmmm .....not sure about that ......start by swaping the filter...i dont think thats the problem but once swaped you can forget about it .....balancing the carbs is always a good thing do you know when it was last done ?
Did i just read that correctly ???
Sorry, my fault, i'm so used to seeing your name on this post i thought you were red98 I thought it sounded a bit casual........