rode the f4...realized I STINK! - MVAgusta.net
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post #1 of 22 (permalink) Old 05-21-2009, 08:57 AM Thread Starter
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rode the f4...realized I STINK!

back off randy.

doesn't matter if its a short ride or long, anything i wear really smells like i layed under an tank exhaust pipe for an hour. wonder if it's over rich setting at idle? i need to get it retuned/resynched and dynoed. i still get big shotgun backfires (fun, but can't be good all the time). maybe it's all the same...over rich conditions?

or does every f4 owner, or anyone with an underseat exhaust smell the same way due to the location of the pipes?
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post #2 of 22 (permalink) Old 05-21-2009, 10:44 AM
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My wife always says i stink when i come home too. I consider it a really expensive cologne!

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post #3 of 22 (permalink) Old 05-21-2009, 11:38 AM
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You shouldn't be getting any back fires. Does the bike perform right ?


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post #4 of 22 (permalink) Old 05-21-2009, 11:43 AM
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I get told the same thing. Can't get away with a sneeky trip out before she gets home from work. I just assumed it was normal. Don't get any back fires, just the popping of the EBS when off the throttle.
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post #5 of 22 (permalink) Old 05-21-2009, 11:56 AM
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Well smelling like exhaust is an expensive cologne that comes witht the territory. That sweet smell actually turns my wife on ! But that dosn't matter here The problem is in the mapping and back firing issues. Whens the last time your air filter was cleaned thoroughly ? Lets start witht the obvious and worrk the other way. Clean your filter and if it still back fires try adjusting your PC manually.


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Take off your pants and jacket

01 750S W/1000R engine
01 Ducati 748 W/853 kit
03 Yamaha R1 (SOLD)
01 Kawasaki KX 125
88 Yamaha YSR 50
01 Yamaha R6
03 Suzuki DRZ pitbike
1982 Honda 110 atc
Yamaha PW50
1978 Honda 90 atc
2011 Yamaha Grizzly 700
2008 Yamaha Raptor 660
1975 Kawasaki G5 100
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post #6 of 22 (permalink) Old 05-21-2009, 01:25 PM Thread Starter
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it's been backfiring since i had it tuned with a new bmc in there. i need to take it to another shop. although i'm willing to try anything, i have no idea what i should be doing in terms of adjusting the PCIII manually. i'll schedule a service to get the TB synched/co2 set and get the PC set up again. i am at 14K miles.

gave up on the new cologne story...
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post #7 of 22 (permalink) Old 05-21-2009, 02:44 PM
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Adjusting you PC III manually is really pretty easy. Follow these steps :

* Attatch your 9 volt power adapter to the PC III.

* Make sure the kill switch is in the run position and turn the ignition on.

* Within 5 seconds of turning on the ignition press all three buttons down simutaneously.

* Select the range you wish to adjust; Low, Med, High, by pushing the corresponding button once.

* At this point holding that button down will move the lights down (leaning the map).

* Pushing the button repeatedly will move the light up (richening the map).

* When the two center lights are lit up this is the "0" setting.

* After making your adjustments wait 15-20 seconds before starting or shutting off the bike. This allows the settings to be saved to memory.

* To verify that it is safe to start the bike or turn it off, move the throttle and watch to see if the lights ove up and down the scale. If they do, you may start or turn off the bike.

************************************************** *********************************

!!!!!!!!! If you do not have the power adapter, there are a different set of instructions. Do not attempt to adjust if the adapter is unavailable !!!!!!!!!!

Let me know what you need and I will post instructions for no adapter.

Cooper


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Take off your pants and jacket

01 750S W/1000R engine
01 Ducati 748 W/853 kit
03 Yamaha R1 (SOLD)
01 Kawasaki KX 125
88 Yamaha YSR 50
01 Yamaha R6
03 Suzuki DRZ pitbike
1982 Honda 110 atc
Yamaha PW50
1978 Honda 90 atc
2011 Yamaha Grizzly 700
2008 Yamaha Raptor 660
1975 Kawasaki G5 100
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post #8 of 22 (permalink) Old 05-21-2009, 05:53 PM
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I can't comment on the tuning aspects of this, but for a short while my 750 had the stink problem (without the backfire) and it ended up being a small leak in the fuel connectors under the tank. Because the leak was small, the vapors were not enough to set the thing on fire, but did permeate gear, etc when they came in contact with the hot engine block and the surrounding heat.
May be worth looking at, as it is a commonly reported (and easily fixed) problem with the 750s, and it may be running parallel to the tuning issue.
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post #9 of 22 (permalink) Old 05-21-2009, 05:55 PM
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How did you find this out?
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post #10 of 22 (permalink) Old 05-21-2009, 06:22 PM
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Quote:
Originally Posted by Darkside View Post
How did you find this out?
The smell was bugging me so I took the side fairings off and the first thing I noticed was some small marks on the inside of the right fairing as if coolant drops had splashed and dried. I followed the fuel lines with good light and saw the connectors a bit damp. I then got the bike running and sure enough after a few minutes more fuel begun forming around the connectors.
Replaced them with the Triumph metal option and it worked perfectly.
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