Mud in engine


19 replies to this topic
  • IFOL519

Posted March 02, 2009 - 12:42 PM

#1

I recently raced a hare scramble and I got stuck in the mud. It took 5 guys and about two hours to get my bike out. When we got the bike out and started it it made a strange noise but it still ran. When I got home I checked the radiators and they were empty and the I checked the oil and mud started to come out. I used oil and air to try and get it out but some mud is still coming out. What should I do? Do I keep doing this? I have not started the bike again
I run a 2007 yz450f
thanks

  • psellers22

Posted March 02, 2009 - 12:46 PM

#2

I recently raced a hare scramble and I got stuck in the mud. It took 5 guys and about two hours to get my bike out. When we got the bike out and started it it made a strange noise but it still ran. When I got home I checked the radiators and they were empty and the I checked the oil and mud started to come out. I used oil and air to try and get it out but some mud is still coming out. What should I do? Do I keep doing this? I have not started the bike again
I run a 2007 yz450f
thanks


i would at least pull of the crankcase cover on both sides and inspect..but for on the radiators being completely empty i would be reaaaaally worried unless you find a hole in the cores somewhere....goodluck glad it not me :p and if it were me because im ocd with my bike i would take the motor out and tear it down and check everypart on it !!

  • jo-hn1777

Posted March 02, 2009 - 12:46 PM

#3

i'd say if you really want to get it all out you're going to have to split the cases

  • kawasakimx8

Posted March 02, 2009 - 12:51 PM

#4

split the cases, clean inspect, and assemble, and then flush it a couple times using some kind of cheap oil. then dump some good in and run it, after about 45 min, to 1 hour of riden, empty it out and change oil filter and oil.

  • grayracer513

Posted March 02, 2009 - 12:52 PM

#5

No shortcuts. Tear the whole thing down and do it right. The potential expense in the alternative is just too big.

  • IFOL519

Posted March 02, 2009 - 02:46 PM

#6

Thanks for the responses
I will open the motor and clean it out

  • ThumperKid250F

Posted March 02, 2009 - 07:16 PM

#7

i would tear that whole motor apart no questions asked. i wouldent be surprise if you have to replace a lot of parts inside..

ie. clutch, bearings, valves ect..

  • dylans503

Posted March 02, 2009 - 07:21 PM

#8

wow sucks man. its probably best that you tear it down

  • etug321

Posted March 03, 2009 - 08:40 AM

#9

Make sure you disassemble the oil pump and clean it. Grit will grind into the case if left untouched.

  • 642MX

Posted March 03, 2009 - 04:53 PM

#10

Make sure you disassemble the oil pump and clean it.


I would just replace the oil pump and rotor, along with the main bearings and big end bearing (and anything else that doesn't look right).

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  • simonrsv

Posted March 03, 2009 - 05:22 PM

#11

Sorry to here that, I had a wr 426 only 200 miles old that got stuck in deep
mud , we had the same problem the bike would not start ,when we got it running rode 5 miles home,the engine was full of mud so we stripped the motor . I had to change oil pump,engine bearing, camshaft, piston and barrel
, the mud had blocked all the oil feeds and the mud must have been quite sandy because it looked like someone had shot blasted the internals.
I hope you have better luck

  • IFOL519

Posted March 06, 2009 - 09:32 AM

#12

Well as you guys said I took my motor to my mechanic and he opened it up and it was not pretty. Now I need to find alot of part so I was wondering if you guys knew were to get oem parts at low cost.

  • grayracer513

Posted March 06, 2009 - 09:38 AM

#13

Well as you guys said I took my motor to my mechanic and he opened it up and it was not pretty. Now I need to find alot of part so I was wondering if you guys knew were to get oem parts at low cost.

http://shop.thumpertalk.com/oem.asp

  • IFOL519

Posted April 01, 2009 - 02:13 PM

#14

I have purchased some of the parts I need such as the cylinder, piston and gaskets, but the head also was damaged so I need another one, my mechanic says he has one but he doesnt have the buckets that go ontop of the valves. The problem is I cant find were they sell them, I looked at the TT store but I could find them, anyone know were I could purchase them?
thanks for all the help

  • grayracer513

Posted April 01, 2009 - 02:21 PM

#15

I have purchased some of the parts I need such as the cylinder, piston and gaskets, but the head also was damaged so I need another one, my mechanic says he has one but he doesnt have the buckets that go ontop of the valves. The problem is I cant find were they sell them, I looked at the TT store but I could find them, anyone know were I could purchase them?
thanks for all the help

Yamaha (or TT OEM). Right there on the Valve page in the parts book:

3FV-12153-10-00 (5 required )

  • IFOL519

Posted April 01, 2009 - 02:37 PM

#16

I feel stupid now.
I was looking in the wrong place.
thanks

  • schrode

Posted April 01, 2009 - 02:40 PM

#17

upside is you're going to have a brand new motor when all is said and done

  • grayracer513

Posted April 01, 2009 - 03:06 PM

#18

I feel stupid now.
I was looking in the wrong place.
thanks

It takes a while to get the hang of the parts book layout.

  • Stupendous

Posted April 01, 2009 - 03:30 PM

#19

http://shop.thumpertalk.com/oem.asp


www.servicehonda.com (yes they sell Yamaha) is actually cheaper so make sure you get TT to do the 110% price match difference. I just recently priced parts between the two sites when I was purchasing some OEM parts.

  • Pilfer8

Posted April 01, 2009 - 03:53 PM

#20

http://cheapcyclepar...om/Street.aspx#

use the tt price guarantee:thumbsup:





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