Engine Help - Yamaha FZ6 Forums - International FZ6 Motorcycle Community Forum

Hazardous006 · 08-15-2008, 07:30 PM

Here is my problem. I was recently a part of a hit and run where a Chevy S10 clipped my front tire and took off. No major damage, just scuffs to the bike. But my problem is the since then I have had a loss in MPG to where I am running about 25-30 MPG. Anyone can help? I have a picture. I think its the Mass Airflow Sensor? It was apart when I was checking out the bike. It has a nice crack in it on one side. Could this be the source of my lost mileage?

**sportrider** · 08-15-2008, 08:19 PM

that could cause a problem. do you have any fault codes?

Hazardous006 · 08-15-2008, 09:20 PM

no codes. it just feels like its running very rich. I pulled my plugs and the tops of them were covered with soot.

Cali rider · 08-15-2008, 09:35 PM

Quote:

Originally Posted by Hazardous006

Could this be the source of my lost mileage?

Yes, it's the intake air pressure sensor. If it is compromised the ECU is getting a low vacuum reading all the time, probably interpreting that as a wide open throttle, hence making the mixture rich.

Hazardous006 · 08-15-2008, 09:40 PM

so if I seal that crack, it will help? Can I use epoxy to seal it? Or what do you recommend?

rvbiker · 08-15-2008, 09:53 PM

You can’t make things worst by trying to seal it, give it a go. If it doesn’t work you can always buy a new one.

08-15-2008, 07:30 PM	#1 (permalink)
Hazardous006 Member Join Date: Dec 2007 Location: Tucson, AZ Bike: '06 Yamaha FZ6 Sport Red Posts: 57 Rep Power: 4 Member #1115	Engine Help Here is my problem. I was recently a part of a hit and run where a Chevy S10 clipped my front tire and took off. No major damage, just scuffs to the bike. But my problem is the since then I have had a loss in MPG to where I am running about 25-30 MPG. Anyone can help? I have a picture. I think its the Mass Airflow Sensor? It was apart when I was checking out the bike. It has a nice crack in it on one side. Could this be the source of my lost mileage?

08-15-2008, 08:19 PM	#2 (permalink)
sportrider NOT BANNED Join Date: May 2007 Location: EARTH Bike: 2007 Yamaha YZFR1 Posts: 2,631 Rep Power: 975 Member #127	Re: Engine Help that could cause a problem. do you have any fault codes? __________________ a work in progress...

08-15-2008, 09:20 PM	#3 (permalink)
Hazardous006 Member Join Date: Dec 2007 Location: Tucson, AZ Bike: '06 Yamaha FZ6 Sport Red Posts: 57 Rep Power: 4 Member #1115	Re: Engine Help no codes. it just feels like its running very rich. I pulled my plugs and the tops of them were covered with soot.

08-15-2008, 09:40 PM	#5 (permalink)
Hazardous006 Member Join Date: Dec 2007 Location: Tucson, AZ Bike: '06 Yamaha FZ6 Sport Red Posts: 57 Rep Power: 4 Member #1115	Re: Engine Help so if I seal that crack, it will help? Can I use epoxy to seal it? Or what do you recommend?

08-15-2008, 09:53 PM	#6 (permalink)
rvbiker Junior Member Join Date: Nov 2007 Location: south dakota Bike: 2005 yamaha FZ6 Posts: 192 Rep Power: 6 Member #860	Re: Engine Help You can’t make things worst by trying to seal it, give it a go. If it doesn’t work you can always buy a new one.

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