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Extreme loss of power

  • Thread starter Thread starter x01660
  • Start date Start date
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x01660

Guest
Bike: 1980 Suzuki GS1000G

Modifications: Removed the air filter.

Problem: My bike was running fine, and with plenty of power. I pulled the air filter out. The bike was running fine (albeit on a shot battery, had to push start), then about 1/2 a mile down the road it started to sputter and die. I barely made it to the auto parts store where I was charging up another battery. Put that one in. Same thing. Bike ran well for a little, then lost a lot of power. As in WOT in first and the bike would barely more forward

Do you think that that is because of the lack of an air filter?

I don't have a known good battery yet, so I can't perform the Stator Paper tests yet, but the bike was running fine until I removed the filter.

Please let me know where to start. This is my first motorcycle, and I'm ignorant about a lot of things on it. Thanks.


x01660
 
kdo58 said:
you have to have a filter, or rejet, have you read this
http://members.dslextreme.com/users/bikecliff/
Click to expand...

Thank you for the quick reply. I just got the bike today and it is my first motorcycle. I am going to clean the entire electrical system tomorrow morning.

Yes I've seen that website, and I've read a lot of it. I just haven't read it all yet. But that answered my question. It is the air filter that is causing my problems. Luckily for me it's a reusable type, so I'll clean it and put it back in. Thank you very much.


x01660
 
Sounds like a fuel delivery problem. I would check your petcock.
It'll run fine while the bowls are full but as they are sucked dry one by one you will start losing power. Once the bikes sits for a bit the bowls fill back up and it will run good again until they get sucked dry.

I had a non OEM petcock on my bike when I got it that would only free-flow fuel in one specific position. Any deviation from that specific position would only let the fuel trickle in to the carbs resulting in the exact symptoms you are describing.


Tank
 
Bike won't run properly with out an air filter unless you rejet. Period
 
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