Anyone have a fuel injector go bad or start acting up?.,,
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Grand HDF Member
Joined: Mar 2007
Posts: 4,921
Likes: 264
From: Deep in the heart of New Jersey
Only way I could spend any money, is if you gave me some.,,,,
Outstanding HDF Member
Joined: Jan 2014
Posts: 2,181
Likes: 488
From: Central California
Injectors are mechanical devices and CAN fail. But, they have been proven to be very reliable.
Typically, they get "varnished" over time. The spray pattern will degrade to the point that the fuel sputters and dribbles out rather than a strong spray mist. On my own bike, I think I may have that problem. So, over the winter, I'll remove 'em, and send 'em to a place that specializes in fuel injection to have 'em cleaned and checked.
In your case, you might suspect that one or both are hanging open. If that is the case, it would show up as raw fuel still coming out of the pipe (Black smoke). You fuel mileage would be bad and the plug(s) would be black and sooty. That is the first thing to check.
If it's oil that's burning, the smoke would be blueish. If it's bad the plug would be oily looking if it were really bad.
So, determine what liquid is being used up at an abnormal rate. Fuel or oil? Then pull the plugs and look at 'em. Do a compression check or leakdown check if you suspect excess oil consumption.
Don't guess. Diagnose. Then you'll have a course of action.
Typically, they get "varnished" over time. The spray pattern will degrade to the point that the fuel sputters and dribbles out rather than a strong spray mist. On my own bike, I think I may have that problem. So, over the winter, I'll remove 'em, and send 'em to a place that specializes in fuel injection to have 'em cleaned and checked.
In your case, you might suspect that one or both are hanging open. If that is the case, it would show up as raw fuel still coming out of the pipe (Black smoke). You fuel mileage would be bad and the plug(s) would be black and sooty. That is the first thing to check.
If it's oil that's burning, the smoke would be blueish. If it's bad the plug would be oily looking if it were really bad.
So, determine what liquid is being used up at an abnormal rate. Fuel or oil? Then pull the plugs and look at 'em. Do a compression check or leakdown check if you suspect excess oil consumption.
Don't guess. Diagnose. Then you'll have a course of action.
Road Master
Joined: Sep 2009
Posts: 1,169
Likes: 9
From: Southern Illinois
My 01 had a rear injector hang open, ran great, just a trace of black smoke once in a while. Finally started fouling rear plug, so I ordered new ones from HPI and have not had a problem since.
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Grand HDF Member
Joined: Mar 2007
Posts: 4,921
Likes: 264
From: Deep in the heart of New Jersey
I just changed them out a month or so ago, and they looked fine. Never had any oil consumption issues or even leaks with the bike. Has a little over 66k on it.,,,
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