Did an oil change in my F4i, now it won't start... - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 58 (permalink) Old 10-31-2007, 12:23 PM Thread Starter
 
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Did an oil change in my F4i, now it won't start...

So about a week ago I needed an oil change. No problem, I've done it plenty of times this year. I drain the oil, had a really tough time getting the filter off even though I torqued it to spec, then started filling it back up with GN4 oil and a new K&N filter like I've always been doing.

So I put 3 quarts in, start the engine to fill the filter with no problems, then add more to get the level between the indicators. However I run out of oil just below the lower indicator. No problem, I'll just leave the bike alone and pick up another quart within the next few days then fill it up and start the engine and check the level again.

So I bought 4 quarts of HP4 oil, the sorta semi-synthetic Honda oil, since that's what I was planning on using in my next oil change, whenever that would be. So I topped it off with HP4 then started the engine... sortof. The engine started but idled rough and at about 1000rpms. Oil level seemed fine... I thought, well that's odd, so I drained a little oil thinking I overfilled it then started it again today with the same result. So then I drained all the oil and put my new HP4 in and measured how much I put in this time. All seemed fine and normal but when I went to crank the engine I didn't even hear any combustion whatsoever this time. It cranks over but it doesn't sound like an engine is attached.

What the hell did I do to my bike? The only thing I did differently was top it off with about .2 qts of HP4 instead of GN4.
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post #2 of 58 (permalink) Old 10-31-2007, 12:54 PM
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If you filled the oil correctly to the right level, or are reasonably close, I'm sure oil isn't the problem, and you have something else going on. If you overfilled it, it would bog down and it might blow smoke, and if you underfilled it nothing would happen, unless it was so low that the oil pickup was uncovered, in which case the engine would seize.

Check the usual... fuel, spark, codes, etc...
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post #3 of 58 (permalink) Old 10-31-2007, 01:40 PM
 
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Did you drop the bike by any chance? When the bikes gets tipped the oil can pour into someplace it isnt supposed to, and when you start it, it will sounds very very badly for a little while.

But it should still start. There is something else going on. Chances are you unplugged something while you were messing with it.



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post #4 of 58 (permalink) Old 10-31-2007, 01:54 PM
 
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Quote:
Originally posted by Mister Tee
If you filled the oil correctly to the right level, or are reasonably close, I'm sure oil isn't the problem, and you have something else going on. If you overfilled it, it would bog down and it might blow smoke, and if you underfilled it nothing would happen, unless it was so low that the oil pickup was uncovered, in which case the engine would seize.

Check the usual... fuel, spark, codes, etc...
+1. Pull a sparkplug. If its wet with oil, you know what to check. If its wet with gas, you have to check the ignition. Any chance you disturbed an electrical connection while you were struggling with the old oil filter? How about a pinched fuel or vacuum line?
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post #5 of 58 (permalink) Old 10-31-2007, 02:24 PM
 
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Originally posted by Rundog
+1. Pull a sparkplug. If its wet with oil, you know what to check. If its wet with gas, you have to check the ignition. Any chance you disturbed an electrical connection while you were struggling with the old oil filter? How about a pinched fuel or vacuum line?
Wet with oil? What do you check in that case? Assuming the rings arent shot (shouldnt be, new bike) the only other explanation I can think off is that there is oil in the air box, from either being tipped over, or PCV valve or something...



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post #6 of 58 (permalink) Old 10-31-2007, 03:19 PM
 
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Could be totally unrelated. I know one of my buddies had a F4 and keep getting water in the tank from condensation.
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post #7 of 58 (permalink) Old 10-31-2007, 06:33 PM Thread Starter
 
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Right, I may have been a little over zealous with my oil change. I pulled the #4 plug and got this:



So... how do I fix it?
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post #8 of 58 (permalink) Old 10-31-2007, 06:58 PM
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are you shure your bike is in nuetral? this may sound like a stupid question but i have seen it before.
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post #9 of 58 (permalink) Old 10-31-2007, 07:07 PM Thread Starter
 
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I'm positive. Its in neutral, I haven't dropped it and everything is plugged in just fine. Apparently I'll have to clean out the oil from the cylinders and replace the plugs and try to crank it over until it starts.

It genuinely sucks since I've been doing an oil change for the past week while the weather's been fantastic. Initially I had to keep going back to the hardware store to buy progressively larger tools to remove the oil filter with. I've only had a few minutes a day to work on it which might be why I forgot how much oil I was putting in it... Oops.
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post #10 of 58 (permalink) Old 10-31-2007, 07:09 PM
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did you overfill it with oil!?
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