Fazer Owners Club - Unofficial
Bikes, Hints'n'Tips => FZS600 Fazer => Topic started by: dilboy on 08 May 2015, 12:30:19 pm
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Hello all
Little problem, just bought a 2000 Fazer, had it serviced, new oil, plugs, air and oil filters. Taken it out and its really sluggish on low revs and back firing as well but not constant. Iridium Plugs set to.08.
We've not changed anything else.
Any ideas ?
cheers
dilboy :guitar
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Do a TPS check
Explained here......
http://foc-u.co.uk/index.php/topic,12294.msg136985.html#msg136985 (http://foc-u.co.uk/index.php/topic,12294.msg136985.html#msg136985)
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Cheers for that but you know what I'm going to ask, what's a TPS Check ?
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Yeah, i know, as above. :)
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A dodgy or non working TPS (throttle position sensor) can make the bike run badly, i have personal experience of this twice.
As you've just got it though, if the TPS is fine, then i'm gonna hazard a guess that a carb balance wouldn't go amiss, but that's much more involved.
It's really difficult to pinpoint problems when there's no maintenance history at all on a bike, because it could be anything.
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Did the problem only start after the service, or was it there before?
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Back fires would indicate un burnt fuel getting into the exhaust, ie some sort of spark plug misfire. if you changed the plugs you would obviously have had to pull off the plug caps, check that the ht leads are still tight in the caps, and just as a long shot, did you spray anything into/over the plug caps before refitting ? there are many products out there ie brake cleaner which leaves a conductive surface when it drys. perfect for causing misfires and back fires . The only safe product I've personnally found is WD40,
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Just found this old post :)
http://foc-u.co.uk/index.php?topic=8367.0 (http://foc-u.co.uk/index.php?topic=8367.0)
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Ignore this, my bad.
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That doesn't apply in this case, an FZS600 from 2000 is equipped with carburettors rather than fuel injection. All the TPS does is advance and retard the spark timing slightly.
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That doesn't apply in this case, an FZS600 from 2000 is equipped with carburettors rather than fuel injection. All the TPS does is advance and retard the spark timing slightly.
Duly noted, and altered, cheers.
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Cheers for all the advice.
It didn't happen before the service
When changing the plugs I did not spray anything in.
I have just adjusted the tps and it sounds a lot better, revs are constant.
Will take it out later and or tomorrow and se how it is.
Balancing the carb, home job or at a professional to do it ?
cheers :evil
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Cheers for all the advice.
It didn't happen before the service
When changing the plugs I did not spray anything in.
I have just adjusted the tps and it sounds a lot better, revs are constant.
Will take it out later and or tomorrow and se how it is.
Balancing the carb, home job or at a professional to do it ?
cheers :evil
You need a carb balancing kit for starters, and obviously depends on your own confidence and ability?
Think i paid about £45 for a 2nd hand Morgan Carbtune kit, with the thought that mechanics around my way charge about £50-£60 an hour.
I've used it twice now so i'm quids in already, and the thing is once done the bike can feel soooo much smoother, especially at lower revs.
I did mine last week and my normally very noisy bike has noticably quietened a little bit, even though it wasn't too far out, but i can certainly feel a difference.
If it hasn't been checked for a long time, which is very possible, then the difference in running could be huge.
http://foc-u.co.uk/index.php/topic,91.0.html (http://foc-u.co.uk/index.php/topic,91.0.html)
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Cheers again for the help :D
Will get a kit and have a go :eek
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if ur gonna look at balancing...
here is what i used - you don't have to follow my trick of roping the tank up - i just could not get the fuel pipe off the tank...
roping it up did however mean i could just crack on....and not have to balance the tank on the seat back to front when i want to actually measure the vacuum.....
http://foc-u.co.uk/index.php/topic,15985.msg183713.html#msg183713v (http://foc-u.co.uk/index.php/topic,15985.msg183713.html#msg183713v)
I was concerned about the readings in terms of not being high enough, but its the sync that matters...
those carb vacuum port covers are tricky to get - needle nose pliers for their clips is a must.....and patience :lol
there is also the question of how accurate the gauges are and if they are calibrated properly....i have no idea but i was happy eventually they all read reasonably close...
oh and read the scales the correct way as i did not initially!
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Well i took the bike to a local bike merchanic and stright away he said it was only running on 3 cylinders,so ive left it in his capable hands.
:)
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ah, lol, yes you need 4 ideally :b
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i guessed that when he looked at me with dismay :lol
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If it was running o.k. before you did the service it could be that one of the new plugs was faulty. Not common but not unknown either. Or as someone already said a plug cap not pushed on fully.
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Thats was mentioned but left it with BURY BIKES hopefully back by the weekend ;)
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Do they bury all the bikes or just for special customers !!!!!!!!!!
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Most likely the plug cap and wires.
Roll back the boots on the coil leads, unscrew the plug caps from the coil leads cut about 10mm off the end of the wire. Screw the plug caps back on until tight. Put some vaseline in around the top of the caps and the leads and roll the boot back on to the top of the plug caps.
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Well I had put the wrong caps on the plugs :wall and now it runs like a dream :D
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Silly boy. But at least it's a cheap fix
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how did you put the wrong caps on a set of spark plugs - not saying that in a funny way, i literally mean i did not even think about changing those things - i have seen custom ones, what was wong with yours, i thought as long as the coils were stock....
do different caps affect the spark plugs then?
I have seen different colors of leads as well...
assuming you had some of the wrong resistance or other propert?
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i think he means the wrong lead on the wrong plug,as in firing order,easy done.....another lesson learnt ;)
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ah - ok, so yes that i understand...
still now its unleashed a wrathe of ideas in my small mind......can i put on different color leads and caps :b
hmmm..... http://www.ebay.co.uk/itm/7mm-HT-Ignition-Lead-Cable-Copper-Core-PVC-Red-/230777676927?pt=LH_DefaultDomain_3&hash=item35bb6be47f (http://www.ebay.co.uk/itm/7mm-HT-Ignition-Lead-Cable-Copper-Core-PVC-Red-/230777676927?pt=LH_DefaultDomain_3&hash=item35bb6be47f)
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Think he meant he swapped the leads over by mistake so lead 1 went on plug for cylinder 2 and lead 2 on to cylinder 1 plug
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ah - ok, so yes that i understand...
still now its unleashed a wrathe of ideas in my small mind......can i put on different color leads and caps :b
hmmm..... [url]http://www.ebay.co.uk/itm/7mm-HT-Ignition-Lead-Cable-Copper-Core-PVC-Red-/230777676927?pt=LH_DefaultDomain_3&hash=item35bb6be47f[/url] ([url]http://www.ebay.co.uk/itm/7mm-HT-Ignition-Lead-Cable-Copper-Core-PVC-Red-/230777676927?pt=LH_DefaultDomain_3&hash=item35bb6be47f[/url])
the ht leads on the fazer are moulded into the coils so not an easy job....I have seen joints in leads but not keen on them...
something else I spotted whilst looking at outboard boat engine parts was coloured fuel lines.......cant really see them on the fazer though....
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yes wrong leads it was,3 on 4 and 4 on 3 :o
But it runs like a dream, did a 200 mile round trip on Saturday, it flew when needed, lovely ride :evil
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its nice when you have a good ride out - i have not been out since end of March!!!!
:b
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That was the first good ride I've had on the bike since I bought it, really enjoyed it, shame you've not been out since march
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yeah, i bought it in January, and did 1500 miles Feb, really got back into things, really enjoyed it then went and buggered it all up!
Learned a hell of a lot and should be back on the road June 12th ish.....thats the MOT date :lol
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Got mine back on the road yesterday been 2 months for Motad to get replacement downpipes to me. Not been a run yet only trip to work and back
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Rode to work on mine tonight and was very tempted to jump on the motorway and call a sickie,but alas i didnt :'(