+- Fazer Owners Club - Unofficial (https://foc-u.co.uk/mybb)
+-- Forum: Bikes, Hints'n'Tips (https://foc-u.co.uk/mybb/forumdisplay.php?fid=66)
+--- Forum: FZS600 Fazer (https://foc-u.co.uk/mybb/forumdisplay.php?fid=78)
+--- Thread: COLD DOWNPIPE (/showthread.php?tid=65613)
COLD DOWNPIPE - jason1 - 22-09-13
Hi all , checking and cleaning the bike today and noticed no3 downpipe on start up takes a lot longer to warm up than the others . Ive checked leads and spark and replaced plugs as a precaution . Still seems the same , has anyone come across this before ? Bike starts on the button and seems to run ok , if slightly down on power. :eek
Re: COLD DOWNPIPE - snapper - 22-09-13
might be carbaration?
Re: COLD DOWNPIPE - Fazerider - 22-09-13
If number 3 chimes in once the throttle's opened up, then it's probably a blocked slow jet.
There are other possibilities though: that carb could be flooding or starved of fuel- fairly easy to test for with a length of plastic tube attached to the drain to check the fuel level.
Of course, if it's not sparks or fuel that are amiss, the other thing is compression.
Re: COLD DOWNPIPE - Paul - 23-09-13
Agree with fazer-rider
I had a similar problem with a fazer that had been stood for a while.
Check the pilot jets.
It's a fag of a job, but you don't need any special tools to do it.
But before you attempt the 'fag of a job' swap the plugs and spark plug caps round and see if the problem changes cylinder.
Re: COLD DOWNPIPE - Slaninar - 23-09-13
I've had that problem this whole season. When the bike is running, the pipes temperature was measured around 140 degrees celsious on all the pipes (+-1 gedree). It sound sweet, runs sweet. Maybe that is just NORMAL for fazers?
I stopped worrying about it. Carbs cleaned, leads checked, spark plugs changed - still the same. But no problems when riding.
Re: COLD DOWNPIPE - Buzz - 23-09-13
+1
Mine's been that way for the last 18 months, a bit hesitant to start some times, but under load it doesn't miss a beat. Cleaning the pilot jets has been on the cards for ages but I've just never got round to doing it. I must get some of darrsi's fave, the "STP fuel system cleaner"!
Re: COLD DOWNPIPE - BorisTheThird - 23-09-13
(22-09-13, 05:44 PM)jason1 link Wrote: Hi all , checking and cleaning the bike today and noticed no3 downpipe on start up takes a lot longer to warm up than the others . Ive checked leads and spark and replaced plugs as a precaution . Still seems the same , has anyone come across this before ? Bike starts on the button and seems to run ok , if slightly down on power. :eek
i've got this, found that no. 3 pilot screw is seized (not tired to fix it yet)
Re: COLD DOWNPIPE - jason1 - 23-09-13
Cheers all , sounds like a common problem . Done my normal 70 mile commute last night and all seemed fine running . Checked again today and still taking twice as long to heat up on no3 downpipe . Spark is very good , leads trimmed back and in good condition . Drained carb 3 also and plenty of fuel in there. Have added some stp fuel cleaner as a long shot .
If that dont work ill take carbs out , recon , clean, plus need new carb to head rubbers anyway as outer rubbers are on last legs and cracking badly , no leaks as yet but winter will finish them off i reckon . :'( [size=78%] [/size]
Re: COLD DOWNPIPE - Lawrence - 23-09-13
I've just checked mine and 1 & 2 were 220C, 3 & 4 were 170C after a 50 mile ride home and idling for a couple of minutes while I found the temp sensor.
It's also running like a bag of shit now :\ Would be very interested to hear what you did if you get yours sorted.
Re: COLD DOWNPIPE - darrsi - 23-09-13
(23-09-13, 09:55 AM)Buzz link Wrote: +1
Mine's been that way for the last 18 months, a bit hesitant to start some times, but under load it doesn't miss a beat. Cleaning the pilot jets has been on the cards for ages but I've just never got round to doing it. I must get some of darrsi's fave, the "STP fuel system cleaner"!
It's got jet fuel in it.......i mean, everybody loves a bit of jet fuel
