Question about Yamaha YZ 250 Motorcycles

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Torque setting for top end head of 1978 yz 250

Posted by Anonymous on

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  • Yamaha Master
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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
torque specs for YZ250 Yamaha 2 Stroke
Dirt Bike Advice Yamaha YZ250F Top End Rebuild Dirt Rider Magazine
YAMAHA YZ250 LC Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Posted on Jul 26, 2016

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 109 Answers

SOURCE: Need cylinder and cylinder head torque specifications 98 XR 250

you dont need torque specs on that just use a 1/2 inch drive with you 14mm or16mm socket hold the wratchet right at the top and tighten it as tight as you could get it like that then use wratchet in normal position and just give it a little snugg it will be perfect i have done it a million time on the same type of bikes...

Posted on Dec 05, 2008

bunnydawg
  • 5158 Answers

SOURCE: 91 kx 250 torque values

Engine Top End:
Auto Decompressor Bolt 104 in·lb
Cylinder Head Cover Bolts 87 in·lb
Cylinder Head Bolts: M10 36 S
M6 104 in·lb S

the S in that means the specified pattern ... just like tightening car tire bolts... please note all that it its INCH lbs....

don't know why it says just 36 for the M10 bolts unless they left out inch lbs

Anything else let me know as i've got a manual for the 250 f... actually i've got a few different ones

Robert

Please take a moment to rate this solution as i've taken a few minutes to find the manual thanks

Posted on Jan 28, 2009

  • 3567 Answers

SOURCE: 1987 yz 125 rebuild

40 foot pounds.

Posted on Mar 13, 2009

robotek
  • 1512 Answers

SOURCE: head bolt torque

Hi bengriffith1
You can download a copy of the engine manual from here
It has all the info you need. Any problems with the download just let me know
regards robotek

Posted on Apr 02, 2009

  • 3567 Answers

SOURCE: need torque specs for 98 yz 250,rebuilding engine

Go to the site below and you can download a free srevice manual for your bike.

http://www.carlsalter.com/motorcycle-manuals.asp

Top rating due on this answer!

Posted on Apr 13, 2009

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CONVERT A YZ 250 INTO A WR 250


The YZ is a dirt bike as is. The WR is a street bike and has more accessories on it.
  • Remove the body parts you do not want to get broken. Turn signals, tail light, speedometer, tachometer and mirrors are the main things. Fenders and headlight are possibilities also but the fenders tend to keep mud off the the engine and your body while the headlight allows you to ride at night.
  • Change to a larger rear sprocket. Two or three teeth will make a difference. This will make the bike to " quicker " off the line and out of turns and provide more torque than stock. Top end is a bit slower but with all the twists and turns you seldom get to top speed anyway.
  • Get a heavier flywheel. Yamaha has one but the cost is about $105.00. An aftermarket flywheel may be an option that would cost less.
Please rate this solution. Thanks!

Mar 18, 2009 | 2003 Yamaha YZ 250

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