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+--- Forum: FZS600 Fazer (https://foc-u.co.uk/mybb/forumdisplay.php?fid=78)
+--- Thread: Restricted??? (/showthread.php?tid=71639)
Re: Restricted??? - Paulfzs - 03-03-15
how odd
i know they make them run lean or rich (not sure which one now) from the factory and an air filter + exhaust fixes the flat spot which to me doesnt say they make it run lean so i have no idea why yours is running like that.
love to get mine dyno tested but seems so expensive for just a bit of info
Re: Restricted??? - red98 - 03-03-15
Did the dyno man check carb balance before the dyno run ?
Re: Restricted??? - Silverlegacy - 03-03-15
The carbs were only balanced about two weeks ago.
So hopefully they wouldn't of moved.
Nothing's been done to the bike since then so it should still be fine.
Not sure where to go from here, been googling it and a lot of pages talking about changing jets then adjusting needles??
Re: Restricted??? - Paulfzs - 03-03-15
you cannot change jets on the fazer to make it work properly!
It doesn't work.
Re: Restricted??? - noggythenog - 03-03-15
Im no expert but that dyno graph line looks pretty healthy to me...ie going in the right direction bottom left to top right until the end of the rev range.....to us basic thinkers anyway then surely ther should be a big spike downwards which then levels out at a lower level if the original symptoms were to show up on the graph.
Theres only one thing for it...........you need a thou
Re: Restricted??? - red98 - 03-03-15
Would have thought the dyno man would have checked them before he started, got to be the best place to start......changing jets is not the answer unless they have already been changed....I had mine dynoed last year , it runs spot on now very smooth and pulls cleanly all the way through the rev range right upto the red line, I'll see if I can find it out and post it here to compare...
Re: Restricted??? - Silverlegacy - 03-03-15
I would love a 1000 again, I had one for a short while as a loan bike.
By the looks of the dyno it seems ok, but guess you can see the patch I was talking about.
Not got the £300+ they want to dyno and jet it though, so trying to work out a better option, although they said its pretty much the only option, although it's a problem, as long as it's not destroying my bike I can live with it.
Not sure what the standard procedure is for a dyno, they could of checked the carbs but he didn't say, I will ask tomorrow.
Re: Restricted??? - red98 - 03-03-15
(03-03-15, 05:44 PM)Silverlegacy link Wrote: Just spoke to garage and he pretty much said the same as earlier and hopefully dyno shows this.
Running lean at between 6-7k rpm.
heres mine...iam no dyno expert but to me they dont look much different, untill you look at the air/fuel, mine tops out at just over 14 ( not sure what the 14 is :o)...yours is a fair bit higher......I have a bit more power than you but my bike is RED :thumbup
Re: Restricted??? - darrsi - 03-03-15
Here's an old one of mine, quite possibly done at the same time it was rejetted, way back in 2010.
It's been put back to normal now and been Dyno'd again since then but unfortunately i never got a copy of the latest graph. :\
Re: Restricted??? - darrsi - 03-03-15
Black is faster, Red
He would've gone faster but i asked him to keep the noise down as i was reading. :lol
Re: Restricted??? - red98 - 03-03-15
Darrsi.....do you have the AIR/FUEL results so we can compare ?
Re: Restricted??? - midden - 03-03-15
http://youtu.be/MYjrt2ko4Kc
Re: Restricted??? - Paulfzs - 03-03-15
my fzs is running 118bhp, i fitted a black powerband and the bike is black!
serious note...
go punch holes in the air filter already
Re: Restricted??? - darrsi - 03-03-15
(03-03-15, 11:13 PM)red98 link Wrote: Darrsi.....do you have the AIR/FUEL results so we can compare ?
No mate, i found that graph on this forum from a 2012 natter.
Re: Restricted??? - Yamazer-92 - 04-03-15
I've only read from page 3 (wheyyy) but can't really understand the issue. The bike runs a little RICH allegedly from standard (not lean, that would create possible damage and not produce good power which would make no sense). It was made in the era before emission policing grabbed bikes by the short and curlys. You can smell they are quite rich, mine smells more fuelly from the exhaust than my dads SV yet gets better MPG. To cure this little bit of "richness", a lot of people (myself included) fit a K&N air filter for about £35 and an exhaust can of your choice. The K&N is pretty cost effective if you plan on keeping the bike a while, it's washable and has unlimited warranty. It's a premium product and fits much better than the standard filter I replaced which was black, gummed up and made a weird mayo sludge in my airbox (dealer claimed bike was serviced when I bought it....) Never had the problem since with the K&N.
As for the exhaust, I don't see how that makes much difference unless you have the baffle out and are over 8k or something. I guess the simple theory is with the K&N you are getting more clean air into the engine, and with an unbaffled straight through end can the exhaust gasses are being expelled faster than the stock can allowing for a more efficient combustion. I don't know how it all works other than basic knowledge, but that makes sense to me.
As for yours, 81bhp is definitely fine for a Fazer at the rear wheel. Some will be more, some less. You can spend hundreds on jet kits and dyno time but a lot on here have tried and not had good results. Standard is the best all round. There is a flat spot yes, for me its about 4500-5200 it just doesn't quite have the go but then after that it's off and pulling hard. Not sure what sort of advice "go and drill holes in your air filter" is, but no just no. If you mean air box, that is also not a great idea and pretty old school bodgery that is all the rage in your local macdonals carpark chav corsa drivers car, along with about £400 worth of halfords anodized tat.
Fit K&N, fit exhaust if funds allow, decide whether baffle in or out (out probs better for high rpm but can make commuting low rpm a bit fluffier), balance carbs again and go and give it a good blast to try and clear it out a bit. Keep it serviced well and all should be great. I'll go and read page 1 and 2 now.
Re: Restricted??? - darrsi - 04-03-15
(04-03-15, 12:31 AM)Yamazer-92 link Wrote: I've only read from page 3 (wheyyy) but can't really understand the issue. The bike runs a little RICH allegedly from standard (not lean, that would create possible damage and not produce good power which would make no sense). It was made in the era before emission policing grabbed bikes by the short and curlys. You can smell they are quite rich, mine smells more fuelly from the exhaust than my dads SV yet gets better MPG. To cure this little bit of "richness", a lot of people (myself included) fit a K&N air filter for about £35 and an exhaust can of your choice. The K&N is pretty cost effective if you plan on keeping the bike a while, it's washable and has unlimited warranty. It's a premium product and fits much better than the standard filter I replaced which was black, gummed up and made a weird mayo sludge in my airbox (dealer claimed bike was serviced when I bought it....) Never had the problem since with the K&N.
As for the exhaust, I don't see how that makes much difference unless you have the baffle out and are over 8k or something. I guess the simple theory is with the K&N you are getting more clean air into the engine, and with an unbaffled straight through end can the exhaust gasses are being expelled faster than the stock can allowing for a more efficient combustion. I don't know how it all works other than basic knowledge, but that makes sense to me.
As for yours, 81bhp is definitely fine for a Fazer at the rear wheel. Some will be more, some less. You can spend hundreds on jet kits and dyno time but a lot on here have tried and not had good results. Standard is the best all round. There is a flat spot yes, for me its about 4500-5200 it just doesn't quite have the go but then after that it's off and pulling hard. Not sure what sort of advice "go and drill holes in your air filter" is, but no just no. If you mean air box, that is also not a great idea and pretty old school bodgery that is all the rage in your local macdonals carpark chav corsa drivers car, along with about £400 worth of halfords anodized tat.
Fit K&N, fit exhaust if funds allow, decide whether baffle in or out (out probs better for high rpm but can make commuting low rpm a bit fluffier), balance carbs again and go and give it a good blast to try and clear it out a bit. Keep it serviced well and all should be great. I'll go and read page 1 and 2 now.
I just drilled the 6 holes a few mm bigger in my exhaust baffle to let the air flow even more, plus it also has even more growl to it now as well, it was way too bloody noisy when i removed it the other day so had to put it back in.
You mean this mayo sludge? I had this in my air box when i first got the bike. :b
Re: Restricted??? - Yamazer-92 - 04-03-15
(04-03-15, 12:41 AM)darrsi link Wrote: I just drilled the 6 holes a few mm bigger in my exhaust baffle to let the air flow even more, plus it also has even more growl to it now as well, it was way too bloody noisy when i removed it the other day so had to put it back in.
You mean this mayo sludge? I had this in my air box when i first got the bike. :b
Darrsi, you chav! :lol Nah that's fair enough, best of both worlds like you say I'm actually considering it with my Mivv. The baffle in is a nice tone but a bit quiet especially low rpm but with it out it's madness. Runs better around town with the baffle in too. Still, drilling your baffle is one thing hacking into your air box is another entirely. Surely all kinds of dirt and water etc will cause problems there?? Yeah, that's the sludge I was on about... Nasty stuff, made mine run like shite after I first bought it. All gone now thankfully. Sorry to hijack Silverlegacy.
Re: Restricted??? - darrsi - 04-03-15
(04-03-15, 12:50 AM)Yamazer-92 link Wrote: [quote author=darrsi link=topic=16061.msg185656#msg185656 date=1425426090]
I just drilled the 6 holes a few mm bigger in my exhaust baffle to let the air flow even more, plus it also has even more growl to it now as well, it was way too bloody noisy when i removed it the other day so had to put it back in.
You mean this mayo sludge? I had this in my air box when i first got the bike. :b
Darrsi, you chav! :lol Nah that's fair enough, best of both worlds like you say I'm actually considering it with my Mivv. The baffle in is a nice tone but a bit quiet especially low rpm but with it out it's madness. Runs better around town with the baffle in too. Still, drilling your baffle is one thing hacking into your air box is another entirely. Surely all kinds of dirt and water etc will cause problems there?? Yeah, that's the sludge I was on about... Nasty stuff, made mine run like shite after I first bought it. All gone now thankfully. Sorry to hijack Silverlegacy.
[/quote]
The Moto GP exhaust always had a raw sound anyway, and i really loved the tone and the feel of it without the baffle in but the volume simply took the piss, i was almost embarrassed when people stared at me, plus it made it illegal, so opening the holes a little and refitting it made perfect sense to me.
And they were done using a pillar drill so it's a nice tidy job, they don't look altered or bodged at all.
[size=78%] [/size]
Re: Restricted??? - Paulfzs - 04-03-15
i drilled around the end of my exhaust on the inside all the way around, picks up a lot better and sounds nicer.
Re: Restricted??? - red98 - 04-03-15
thats a shame...would of been interesting having another good one to compare...