Question about Yamaha DT 360 Motorcycles

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How to install a piston for a 1977 yamaha dt 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 zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
1975 DT175B Rebuild Engine Reassembly
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Posted on May 04, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

bonedivers
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SOURCE: 1977 ke125 looking for a piston ring set

bikebandit.com

Posted on Jul 22, 2009

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SOURCE: what is the spark plug gap for a 1972 yamaha dt

.030

Posted on Aug 16, 2009

bobthebulldo
  • 67 Answers

SOURCE: Yamaha Power Valve System

yes you do need a battery, the best position for thr power valve is half open, then once its started turn it either open for bottom end power or closed for top end,i think that right it might be the other way round ant quite remember, but half open should be best for it to start

Posted on Oct 23, 2009

robotek
  • 1512 Answers

SOURCE: I need 1974 Yamaha DT 250 enduro Parts Diagram and

GDay mate

Took a bit of scrounging bout the net, but I eventually found it!!

You can look at the parts diagram/part numbers for the old girl here

A rating and feedback is a great way to reward me for my efforts to find this for you. Cheers mate!!

regards
robotoek

Posted on Jun 20, 2010

  • 1565 Answers

SOURCE: looking for standard piston rings for Yamaha xs500

http://www.bikebandit.com/houseofmotorcycles/1976-yamaha-xs500c/o/m8265#sch210384

Posted on Jan 21, 2011

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Clearance between piston/ cylinder 74 yamaha dt 360


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 $15 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.
DOWNLOAD NOW Yamaha DT250 DT360 DT 250 360 Service Repair Workshop Manual...
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http://mybikemanuals.com/yamaha/yamaha-dt

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1 Answer

My 1974 dt 250 yamaha enduro has a whole in the piston


Hi, Tim you have what is called "PRE-IGNITION" and the usual suspects are:
1. Spark plug heat range too high.
2. Spark plug loose in the cylinder head.
3. Broken spark plug porcelain with carbon buildup.
4. Foreign particle embedded in the combustion chamber.
5. Excessive carbon deposits on the piston head or in the combustion chamber.
6. Points ignition timing too far advanced due to improper timing plate position.
7. Faulty electronic ignition sensor inputs from the MAP, CKP, CMP to ICM/ECM.
8. Engine overheating due to lack of lubrication or coolant.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Mar 25, 2017 | Yamaha Motorcycles

1 Answer

I can't get my yamaha dt 250 to start. batt is good, fuel is on, plug gets spark. It started 2 weeks ago when I bought it.


work your way back from the spark plug, when you crank it over take the plug out, is it wet? if so the fuels getting to the cylinder but the spark may be good but not be strong enough, try a new plug.

worse aspect is holed piston or piston rings and have next to no compression, chuck an eye through the spark plug hole with a torch and see if you can see any metal filings or damage. otherwise chuck a compression tester on it to be more accurate.

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1 Answer

1977 - 1979 yamaha dt 175


Hi, Skibsy the vast majority of service, parts, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee around $10 sometimes more and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available, then there is eBay where you may be able to find what you need at a very high price because of its age and rarity. Most of the "FREE" manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have.
To download your manual please click on the blue links below. Good luck and have a wonderful day.
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Apr 04, 2012 | Yamaha Motorcycles

1 Answer

1977 YAMAHA MX 400 weak spark from cdi ing i put yz 426 f because there is not a mx in the hole list


Hi, Weszz3 there is no such thing as a weak spark even though dozens of riders will swear that's what they have and are dying to show you, the bottom line is either you have spark or don't have spark there is no in between.
You won't see a dirtbike spark really well, and people only look at it when they have a problem. It is designed to fire under extreme pressure (13:1 compression) and is very robust, but it is not a 1mm bright blue line jumping across a spark plug. It can be white and very hard to see. If you are confident you have weak or no spark prove it by holding the plug in your hand and stark kicking you will be in for a "SHOCKING" surprise!!!!!
60% of these bikes have a flooding issue and/or a fouled plug. 30% need valves adjusted and most of the remaining 10% are something simple in the electrics like a broken kill switch, bad earth on the battery or dead battery, wiring at the steering head damaged or blown fuse.
For more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Aug 02, 2011 | Yamaha Motorcycles

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1977 Yamaha yz400 specs


Hi, Rpm1mil 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 zero $0 you can download another one. For more information about your issue and valuable "Free" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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1 Answer

1977 Yamaha TY 250 wiring diagram


Hi, Lizandgeof 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 zero $0 you can download another one. For more information about your issue and valuable "Free" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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1 Answer

Yamaha DT 250 Enduro wiring diagram


Hi, Keith1171 for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Jan 26, 2011 | 1972 Yamaha DT 360

1 Answer

1977 Yamaha DT 250 parts catalog


Hi, Clare237 the vast majority of service, parts, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee around $10 and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available, for these rare occasions I shall look on eBay and find the cheapest one available. Most of the manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have. To download your manual please click on the blue links below. Good luck and have a wonderful day Spare parts for Yamaha DT250
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Aug 22, 2010 | Yamaha DT 360 Motorcycles

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