April 2nd, 2009, 08:37 PM | #1 |
ninjette.org member
Name: John-Michael
Location: Texas
Join Date: Aug 2008 Motorcycle(s): 2007 EX250 Posts: 133
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48 Hours of..........
Work. (Sorry, this is kind of long)
2 days ago, while en route to fill the bike with gas, I noticed a strange and LOUD noise in the motor. Got home to take a listen with my helmet off and, sure enough, there was a rattling/slapping noise on the top-right side of motor. I shut the bike off and walked into the house, somewhat dejectedly, and took a deep breath. I figured the problem to be somewhat horrific and decided to go ahead and strip the bike down and pull the top cover. Having done it twice before, I knew it would not take long to find the issue. Once the valve cover was off I was expecting to see shrapnel laying in the case. But, to my surprise, I found ABSOLUTELY NOTHING......out of the ordinary. While I was that far into it, I did decide to do a valve adjust. My first attempt, about a year and a half ago, I ended up stripping a locknut. I had the dealership repair the damage and adjust valves. Well.....lets just say that they never actually adjusted them. Nice. After adjusting the valves, I put everything but the plastic back together and went for a ride. Could it have been that I just needed a valve job? Uhhhhh.....NO! Same noise. Now I am back at the computer checking to see if anyone else had the same issue. Did some reading about the cam chain tensioner. So, I go out and pull it. As I am pulling it out I notice that the rod is not even locked into the housing. So, I clean it and lube it and stick it back in (that sounds somewhat pornographic). Fire it up, go for a quick ride.....no noise. Now I am feeling better. So now.....I put all the plastic back on and go to sleep. The next morning I wake up and run outside to double check for any leaks etc. And wouldn't you know it.........I pinched the o-ring in the coolant pipe on the top of the motor and coolant is leaking around the cover gasket. Once again, I strip the bike down and replace the o-ring. In the process I get a couple of ounces of coolant down in the top of the motor (real nice). After putting everything back together, I flushed the motor twice with clean oil. Popped in a new filter and more fresh oil and.....well.....I think I am done. All of that and all I really need to do was remove 2 8mm screws that are within reach without removing a SINGLE piece of plastic. Now, my wife is on the verge of filing divorce and my kids think I must have run away. It was just one of those things that makes you wonder why you go to all of the trouble. Now its time to go for a long ride and reap the benefits of investing in a relationship with the little 250! Thanks for reading...... |
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April 2nd, 2009, 08:43 PM | #2 |
ninjette.org dude
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much.
Blog Entries: 7
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Good work tracking it down, at least! Your wife and kids are lucky they have someone so handy nearby.
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April 2nd, 2009, 08:54 PM | #3 |
Join Date: Nov 2008 Posts: Too much.
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well, next time you take the bike to a dealer to fix, you'll now understand why the labor charges are 10X the parts.
good job... I suspected the CCT was it from the loud clattering noise you described. you sound like you know your way around the 250 engine quite well. yep... time to go for a long nice ride to clear the head and enjoy the fruits of your labor. |
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April 3rd, 2009, 12:05 PM | #5 |
ninjette.org certified postwhore
Name: Steve
Location: Kekaha, Kauai HI
Join Date: Jan 2009 Motorcycle(s): 05 GSX-R 600 2003 EX250: Woodcraft Bars, Levers, Mirrors, Shim'd Mixture, Synthetic, '08 Rear Shock Posts: A lot.
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Remember when sex was safe and motorcycles were dangerous? |
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April 3rd, 2009, 12:15 PM | #6 |
ninjette.org guru
Name: Ryne
Location: West Laf, IN
Join Date: Feb 2009 Motorcycle(s): 2008 Ninja 250R Posts: 290
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This should help at least some people that are experiencing motor noise and do a search for 'noise in the motor.'
Nicely done. Now go for ANOTHER ride haha
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