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Fazer Owners Club - Unofficial
»
Bikes, Hints'n'Tips
»
Fazer 1000/FZ1 corner
»
More possible Exup woes
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Topic: More possible Exup woes (Read 2272 times)
1967fazer
Club Racer
Posts: 261
Its not a Rossi rep!
Main bike:
FZS 1000 Gen1
More possible Exup woes
«
on:
13 August 2012, 03:07:59 pm »
Just a quickie, this subject has probably been done plenty of times before but, after fixing the gearbox and putting the engine back in my gen1, every thing seems ok apart from the fact that it won't rev above 8000 rpm!, any suggestions would be greatly apreciated
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MadDogMcQ
Club Racer
Posts: 478
Horwich, Bolton, NW UK.
Main bike:
FZ1 Faired Gen2
- CB250N
Re: More possible Exup woes
«
Reply #1 on:
13 August 2012, 04:39:14 pm »
Stay below 8000rpm
(Sorry)
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QUENTIN TARANTINO - HALLOWED BE THY NAME!
eddie
FOC-U Lost Boy.
GP Hero
Posts: 5,622
Main bike:
FZS 1000 Gen1
Re: More possible Exup woes
«
Reply #2 on:
13 August 2012, 04:45:27 pm »
check airbox for obstruction, throttle cables not adjusted correctly, exup cables in wrong way ,rubber boots to carbs not air tight.
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InTheY2K
Weekend Warrior
Posts: 102
Did *I* do that?
Main bike:
FZS 1000 Gen1
More possible Exup woes
«
Reply #3 on:
13 August 2012, 05:40:44 pm »
I'd go for the obstructed air intake. Cloth, map, rain gear, plastic bag or anything stored under the seat that can get sucked in at high rpm.
A classic cause for irritation :-)
Cheers,
Sascha
Logged
Have you hugged your Fazer today?
kebab19
GP Hero
Posts: 1,607
Main bike:
FZS 1000 Gen1
Re: More possible Exup woes
«
Reply #4 on:
13 August 2012, 08:46:51 pm »
Another vote for something under the seat too near the airbox intake
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1967fazer
Club Racer
Posts: 261
Its not a Rossi rep!
Main bike:
FZS 1000 Gen1
Re: More possible Exup woes
«
Reply #5 on:
13 August 2012, 09:37:06 pm »
Quote from: MadDogMcQ on 13 August 2012, 04:39:14 pm
Stay below 8000rpm
(Sorry)
Ha ha ha you're not the only one to say that! It tops out at 120mph now (which probably isn't a bad thing) on a private track of course!
Thanks for those suggestions, will start with the easy one (airbox) and work my way toward the rest. Incidentally, it doesn't 'alf pop on the over run, not sure if that makes a difference?
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eddie
FOC-U Lost Boy.
GP Hero
Posts: 5,622
Main bike:
FZS 1000 Gen1
Re: More possible Exup woes
«
Reply #6 on:
14 August 2012, 08:20:11 am »
it doesn't 'alf pop on the over run, ......................fueling problem maybe ..carbs need adjustment ?
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ghostbiker
Muck Spreader
GP Hero
Posts: 3,437
Main bike:
FZS 1000 Gen1
- GSX600F Katana
Re: More possible Exup woes
«
Reply #7 on:
14 August 2012, 10:12:51 am »
sounds like an air leak somewhere, check the intake stubbs are sealed and the exhaust isnt blowing.
thats the poping im talking about, i would think it would take a hell of an air leak to stop it reving out, so as said above blocked airbox/filter is most common cause.
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tomlinscote
Club Racer
Posts: 289
Main bike:
FZS 1000 Gen1
Re: More possible Exup woes
«
Reply #8 on:
14 August 2012, 12:46:03 pm »
Isn't popping on the over-run a symptom of unburnt fuel going bang in the exhaust? If so may be your bike is running too rich, maybe 'cos of restricted airbox etc.
I once had a mk2 escort whose autochoke decided to come on when I was going down the M4 it run like a cow, not revving out and a popping like a good 'un, until I hit it and it turned off again!!
Also isn't this the popping on the over-run what some gen2 guys miss hence they fit the FCE, well maybe thats one of their reasons??
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1967fazer
Club Racer
Posts: 261
Its not a Rossi rep!
Main bike:
FZS 1000 Gen1
Re: More possible Exup woes
«
Reply #9 on:
23 August 2012, 12:00:33 am »
So I had a go at setting the Exup correctly today, as there was no obstructions around the airbox and, hey presto, instant healthy bike again! Total transformation, the exhaust is quieter, it'll rev well above 8000rpm, it feels gruntier and it doesn't pop and bang as much on the over run!
Can the Exup being badly adjusted really make such a difference?
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b1k3rdude
Foc-u Helpful Foccer
Global Moderator
GP Hero
Posts: 2,440
Main bike:
FZ1 Faired Gen2
- GSF 1250
Re: More possible Exup woes
«
Reply #10 on:
23 August 2012, 12:32:07 am »
Quote from: 1967fazer on 23 August 2012, 12:00:33 am
Can the Exup being badly adjusted really make such a difference?
Yes, as it wont be opening correctly at the required rpm's. Also when you set the exup cable freeplay it would be no more than about 2 millimeters (
http://www.cartestsoftware.com/fz1/exupmaintenance.html
)
nb. after 7 posts no-one mentioned the obvious straight off, eg the bloody exup and or its cables... If Falcon or some of the other requlars were around they would have set you straight with thier first reply.
«
Last Edit: 23 August 2012, 12:34:18 am by b1k3rdude
»
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Fazer Owners Club - Unofficial
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Bikes, Hints'n'Tips
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Fazer 1000/FZ1 corner
»
More possible Exup woes
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