All Things Moto! Web Forums

Go Back   All Things Moto! Web Forums > Dirt Bike - ATV - Suspension Forums > 2-Stroke Dirt Bike Forums > 2-Stroke Dirt Bikes - Yamaha

     
Reply
 
LinkBack Thread Tools
  #1  
Old 01-20-2007, 10:29 AM
Beginner Class
 
Join Date: Jan 2007
Last Online: 06-06-2009 08:28 PM
Location: Southern California
Posts: 44
flasher 1974/1975 Yamaha DT175

Basically I'm fixing one of these up, got the bike for a whopping $25

basically the engine is nearly useless because the bottom end sat without a top end in the elements and to be safe, it would need lots of repairs.

so do you think I should just grab a good bottom end for it? the piston needs replacing and for about $325 I can basically get an engine and piston and the works. or should I try to get my current engine running? looking at the costs there, I'm looking at nearly $500.

Also, does anyone know of any compatible bikes and parts? I'm looking at reed valves and one I want isnt made for my bike, maybe there's a compatible one out there?

The last question is, anyone know where I can get some seat foam or at least automotive foam rubber? (rebuilding the seat with the seat pan)
Reply With Quote
  #2  
Old 01-20-2007, 11:36 AM
Vintage Dave393's Avatar
ATM! Pro Class
 
Join Date: Jan 2003
Last Online: 08-24-2014 12:24 AM
Location: San Antonio, TX
Posts: 2,037
Default Re: 1974/1975 Yamaha DT175

[Only registered and activated users can see links. ]

As far as fixing it, it will depend on what you want it for. It isn't collectible so unless you are just wanting a project, you will never get back the money you put into it to make it right. Don't forget about the little things you will need like, cables, grips, tires, chain, air filter. They all add up in a hurry.

If you decide you really want to go forward and fix it, shoot some photos and keep us informed on your progress.
Reply With Quote
  #3  
Old 01-20-2007, 11:55 AM
Beginner Class
 
Join Date: Jan 2007
Last Online: 06-06-2009 08:28 PM
Location: Southern California
Posts: 44
Default Re: 1974/1975 Yamaha DT175

yeah actually that's the price I was quoting. $300 some odd dollars for most of the parts.

I have almost everything on the bike, (the whole engine, airbox, carb, chain, etc.)

just need the seat (the foam, I have the material to make the cover) new piston and rings (and the stuff to connect it) and the electonic controls and various screws and nuts and bolts (which are actually what add up.. grr)

the major concern is the bottom end, which collected tons of crap over the time it sat out, though the oil in the case protected it from rusting. but it still has dirt in it. wondering if that's even worth ripping apart..

if not I can always part it out or sell it to BBY and buy another DT-175 that works and needs minimal restoration.
Reply With Quote
Sponsored Ads
  #4  
Old 01-20-2007, 01:53 PM
vintageguy's Avatar
Intermediate Class
 
Join Date: Jun 2006
Last Online: 11-22-2012 06:06 PM
Location: BC CANADA
Posts: 285
Default Re: 1974/1975 Yamaha DT175

U can still get most of the OEM parts for it on bikebandit unlike my bike [Only registered and activated users can see links. ]
Reply With Quote
  #5  
Old 01-20-2007, 02:36 PM
Crazy's Avatar
Pro Class
 
Join Date: Sep 2003
Last Online: 01-19-2014 10:57 PM
Location: Cedar Rapids IA
Posts: 1,000
Default Re: 1974/1975 Yamaha DT175

These are the first bike I ever owned. I really wish I would have kept it around I could have given you all the parts I shattered a flywheel on mine but all the rest of it was basically brand new lol.

Good luck finding the parts. I'm sure you will have fun with it.

PS if you do get it running I'd disable the auto oil mixture and just mix it yourself. They are not reliable at all and will cause you a bunch of headaches.
Reply With Quote
  #6  
Old 01-20-2007, 06:18 PM
TUK101's Avatar
Intermediate Class
 
Join Date: Feb 2006
Last Online: 02-02-2012 12:34 AM
Location: N. of Spokane Washington
Posts: 314
Default Re: 1974/1975 Yamaha DT175

I have had several of these over the years. A lot of the parts will fit from other years and other DT's and even some of the older YZ's and MX's (yes, Yamaha made an MX, cross between a DT and a YZ). Even though the bottom end is crudded up, you may still be able to tear it all down and rebuild the bottom end. You would probably need a fully new clutch and some other bearings and things though. That one should have a blue and white tank? Anyways man, if you do have any other questions about working on this bike give me a hollar and if I can help I will. I pretty much got my start working on bikes through maintaining my DT175 and DT400 when I was a kid. We also had the 250, 100, 80 at one time too.
Reply With Quote
  #7  
Old 01-20-2007, 08:08 PM
Mainjet2001's Avatar
ATM! Addict
 
Join Date: Dec 2002
Last Online: 11-16-2014 09:39 PM
Location: Surf City. Huntington Beach Calif.
Posts: 5,141
Default Re: 1974/1975 Yamaha DT175

Shadow.....
Where in SoCal are you?
There is a bike junkyard in Stanton. They have a bunch of stuff.
Reply With Quote
  #8  
Old 01-20-2007, 08:36 PM
Beginner Class
 
Join Date: Jan 2007
Last Online: 06-06-2009 08:28 PM
Location: Southern California
Posts: 44
Default Re: 1974/1975 Yamaha DT175

Ontario.

I would like to use the pre-mix function, there is an adjuster on it, mostly because if I get this thing running and regged for the road, it'd be sweet to ride, run out of gas? fill it up without mixing it.


but I think I may have trouble registering it with the state of california because the engine vin is on a flimsy little sticker (state of california sticker) my friend almost peeled off, and it's so faded you cant even read it, only number I can somewhat make out is a 2.

that's why I was thinking at least getting a new sidecase on that side might be a good thing, or a new bottom end might be worth more than the one I currently have.


Someone suggested to me that flushing the lower end with motor oil may clean it out, but I have serious doubts about that. would that work?

I'm also trying to avoid bikebandit on some things, mostly because they ask ridiculous amounts for some things :S

which brings up my next quetsion. what pistons are compatible with the 1975 DT-175?
Reply With Quote
  #9  
Old 01-20-2007, 10:41 PM
Semper Fidelis
 
Join Date: Dec 2002
Last Online: 02-26-2014 08:31 AM
Location: Barrineau Park, FL
Posts: 7,291
Usflag Re: 1974/1975 Yamaha DT175

I cannot even begin to speak to CA registration laws but all the CT/DT and the 175 MX Yamahas, up to the first mono-shock "Enduros" (about 1978,) are the same. You can check the parts numbers at the on-line parts shops for what years this goes up to, for the pistons and cranks, etc.

Bill
Reply With Quote
  #10  
Old 01-21-2007, 12:05 AM
Beginner Class
 
Join Date: Jan 2007
Last Online: 06-06-2009 08:28 PM
Location: Southern California
Posts: 44
Default Re: 1974/1975 Yamaha DT175

Quote:
Originally Posted by Florida 393 View Post
I cannot even begin to speak to CA registration laws but all the CT/DT and the 175 MX Yamahas, up to the first mono-shock "Enduros" (about 1978,) are the same. You can check the parts numbers at the on-line parts shops for what years this goes up to, for the pistons and cranks, etc.

Bill
aww shame the '79 isnt compatible, would be great because I can score a '79 piston for almost $30 less than what the '74 ot '75's pistons cost

still, good to know. I might be able to find some aftermarket pistons for the MX's.
Reply With Quote
  #11  
Old 01-21-2007, 07:58 AM
Vintage Dave393's Avatar
ATM! Pro Class
 
Join Date: Jan 2003
Last Online: 08-24-2014 12:24 AM
Location: San Antonio, TX
Posts: 2,037
Default Re: 1974/1975 Yamaha DT175

If you are in Ontario, there are salvage yards near you in Riverside and on the way to San Bernandino .
Reply With Quote
  #12  
Old 01-21-2007, 08:54 AM
Semper Fidelis
 
Join Date: Dec 2002
Last Online: 02-26-2014 08:31 AM
Location: Barrineau Park, FL
Posts: 7,291
Usflag Re: 1974/1975 Yamaha DT175

Check the parts numbers for year to year compatibility, I am no expert on any of the compatability issues. I am going on bikes my brother owned and I worked on for him. When the monoshock enduro models came out things changed somewhat. Maybe a trip to the yards Dave and Mainjet mentioned would give some clarification too.

Bill
Reply With Quote
  #13  
Old 01-21-2007, 10:35 AM
Mainjet2001's Avatar
ATM! Addict
 
Join Date: Dec 2002
Last Online: 11-16-2014 09:39 PM
Location: Surf City. Huntington Beach Calif.
Posts: 5,141
Default Re: 1974/1975 Yamaha DT175

Shadow...here you go. (got your message)
I have been here and bought from them. They have a lot of stuff. The place is like a candy store......maybe I'm a little warped!

Stanton
Parts Unlimited (may be closed on Sun. & Mon.)
(motorcycle salvage)
10731 Chestnut St.
Stanton, Ca. 90680
715-828-6260
800-932-9160
Reply With Quote
  #14  
Old 01-21-2007, 10:41 AM
Beginner Class
 
Join Date: Jan 2007
Last Online: 06-06-2009 08:28 PM
Location: Southern California
Posts: 44
Default Re: 1974/1975 Yamaha DT175

I'm not familiar with a yard in Riverside other than the hillside pick-a-part in Pedley/Rubidoux. I think they only do cars, gonna give them a call today about parts for my BMW (well at least see what their hours are.. I know they dont keep inventory)

I know about Neanderthal, but last time I called they didnt have any bike related to mine.

that stanton one may be handy.
Reply With Quote
Reply

  All Things Moto! Web Forums > Dirt Bike - ATV - Suspension Forums > 2-Stroke Dirt Bike Forums > 2-Stroke Dirt Bikes - Yamaha


Bookmarks

Thread Tools


Similar Threads for: 1974/1975 Yamaha DT175
Thread Thread Starter Forum Replies Last Post
1975 Yamaha DT175 bogging down...Need help chadwic10 2-Stroke Dirt Bikes - Yamaha 9 04-03-2009 10:57 PM
Spark gap on a 1975 Yamaha DT175 chadwic10 2-Stroke Dirt Bikes - Yamaha 2 03-16-2009 01:52 PM
1975 DT175 Yamaha Chadwic 2-Stroke Dirt Bikes - Yamaha 0 02-17-2009 03:56 PM
1974 yamaha ty250 2000 cr250rider Vintage Riding 0 04-14-2007 11:15 PM
DT or RT 250 1974? Clutch Stuck? 175DT 1975... jtreed2000 2-Stroke Dirt Bikes - Yamaha 8 10-18-2005 01:26 PM


All times are GMT -6. The time now is 06:07 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright ©2002-2014, JDub Consulting, Inc. All Right Reserved.