Surging Problem

seawolf · 09-07-2018, 05:36 PM

Looking for help. Recently, 450kms ago I had a bad experience after fuelling up bike. Lots of white smoke horrible smell from exhaust. I filled up from a premium dedicated hose. I positive it was water or some other material as it ran on one cylinder for a bit then the other cylinder fired and smoke cleared. I drained the tank totally of fuel, changed oil and pulled checked plugs. Bike has run great for 450 kms and now I get a really bad surge when running at speed. Doesn't seem to be at idle.This was happening at 1/4 full tank. As well just before the surging the engine starts when I hit the start button twice but, I had to roll the throttle while cranking engine.

My suspicion is that the fuel filter is plugged and while the tank is full the pump is getting enough head pressure.

The price of a new fuel pump is $645 cad which you need because the filter and pump are one assembly.

Anyone ever experience this? If so is there any easy way to prove it out. I have the maintenance manual so I see the methods they use.

Sent from my iPad using Tapatalk HD

**ringadingh** · 09-07-2018, 08:43 PM

You can try to find an aftermarket pump that will be a lot cheaper. Take a look at our Tech section, I think it lists some part numbers for pumps. The pump we have is made by Mitsubishi, and I believe the filters can be removed and cleaned.

09-07-2018, 05:36 PM	#1
seawolf Member Join Date: Feb 2008 Location: Stony Plain, Alberta Posts: 153	Surging Problem Looking for help. Recently, 450kms ago I had a bad experience after fuelling up bike. Lots of white smoke horrible smell from exhaust. I filled up from a premium dedicated hose. I positive it was water or some other material as it ran on one cylinder for a bit then the other cylinder fired and smoke cleared. I drained the tank totally of fuel, changed oil and pulled checked plugs. Bike has run great for 450 kms and now I get a really bad surge when running at speed. Doesn't seem to be at idle.This was happening at 1/4 full tank. As well just before the surging the engine starts when I hit the start button twice but, I had to roll the throttle while cranking engine. My suspicion is that the fuel filter is plugged and while the tank is full the pump is getting enough head pressure. The price of a new fuel pump is $645 cad which you need because the filter and pump are one assembly. Anyone ever experience this? If so is there any easy way to prove it out. I have the maintenance manual so I see the methods they use. Sent from my iPad using Tapatalk HD __________________ John 1964 305 super hawk 1985 500 Shawdow 2006 900 Kawa Classic 2007 1600 Nomad 2013 Voyager Login or Register to Remove Ads Last edited by seawolf; 09-07-2018 at 06:54 PM.
	0

09-07-2018, 08:43 PM	#2
ringadingh Join Date: Aug 2007 Location: Newmarket Ontario Canada Posts: 35,387	You can try to find an aftermarket pump that will be a lot cheaper. Take a look at our Tech section, I think it lists some part numbers for pumps. The pump we have is made by Mitsubishi, and I believe the filters can be removed and cleaned. __________________ 2002 Nomad aka Bountyhunter VBA #27 VROC #18951
	0