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Old 06-22-2008, 09:51 PM   #8 (permalink)
trucku
New Member
Grand Prix 125
 
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Join Date: Apr 2008
Posts: 28
Cleaned Spark Plugs (Ultrasonic Cleaner)

Update. The fuel pump is working fine. I tested the pump with ignition on and fuel fitting out. I used a screwdriver to depress internal valve and the pump primed up and pushed out lots of fuel. Unfortunately I was never able to find a fuel filter, SOOO... I used the original filter. I back flushed it. No issues with original filter. The only thing new put into my tank pump assembly was new hoses (originals all but disintegrated)

Still Not Start.
After over 5 years (closer to 6) of sitting I was still having trouble starting the bike.
I pulled the plugs and this is what they looked like this



The 2 oxidized were from cylinders 1 and 4.

I broke out the ultrasonic cleaner and started each on 3 cleaning cycles of 8 minutes with heated water.
I also used wired brushed the spark plugs before the last cleaning cycle.

The plug on the right is before wire brush and final clean. The left plug is done.


I checked the gap on the plugs and for a bike with only 1774 miles on it they were from .6mm to .8mm. I gaped the cr9ek to .7mm (both outer electrodes)

Before it is asked, I saw no need to replace these plugs. They were in good shape and just needed a cleaning.
I installed the plugs and coils.

I still had trouble starting the bike, but noticed when the pump primed it didn't sound like it was pushing fuel the the rail. Turns out the valves on the male fitting and female tank fitting didn't seem to be pushing on each other to open (fitting installed). I put a small stainless steel spring in the male fitting. This allowed it when installed to push on the valve on the tank female fitting. Worked like a charm and I could hear the pump prime up a bit longer as it pressurized the fuel rail.

Good news the bike started up like a charm. Everything ran beautifully. I let idle for 30 minutes to make sure nothing failed (thermostat, electric fan).

Now I just have to give her a test ride. I am going to follow advice from a member and try to clean out a seal that may be leaking on the left fork tube.

Last edited by trucku : 06-22-2008 at 09:54 PM.
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