Dt175 Posted November 11, 2012 Share Posted November 11, 2012 Gday im currently working on getting a DT 175 back to its roadworthy self however im having some technical issues with the electrics. I have the original service manual which doesnt offer much assistance in the lighting department. This is my first project and im 17 from Australia. ive rewired the indicators to work, the horn works the neutral and indicator meter bulbs work. BUT the headlight and general meter lamp do not. the Brake light has a bulb blown which i am replacing but the Headlamp and meter lamp are both functioning when given power directly. My question is has anyone had this problem before and if so any tips? Or is the blown brake light obstructing the current to the headlamp? Thankyou for your help Link to comment Share on other sites More sharing options...
Moderator Airhead Posted November 11, 2012 Moderator Share Posted November 11, 2012 the brake light runs from the battery The headlight is totally seperate and is directly powered from the magneto...so needs the key in position 2 possibly and the engine running and switches on. how many positions does your key switch have including OFF ? is it OFF, 1, 2, 3 ? on the left hand control is there an On / Off for lights ? Link to comment Share on other sites More sharing options...
Dt175 Posted November 11, 2012 Author Share Posted November 11, 2012 okay thanks. yeah its OFF 1, 2, 3 strangely it does not have on on/off for the lights only a dim/high beam control. I thought this was because it turned automatically as the engine ran thanks for your help This is the bike thus far by the way, still clearing rust away from when i got it. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted November 11, 2012 Moderator Share Posted November 11, 2012 at a guess it will be posn 2 on the key for lights and the headlight may need the engine running, not 100% sure maybe posn 3 you can withdraw the key? and this could be a parking light... its not a DT175E though Link to comment Share on other sites More sharing options...
Dt175 Posted November 11, 2012 Author Share Posted November 11, 2012 Yeah its locked in place at position three Link to comment Share on other sites More sharing options...
Dt175 Posted November 11, 2012 Author Share Posted November 11, 2012 really? haha they mysterious barn find. what do you think it is? Link to comment Share on other sites More sharing options...
Moderator Cynic Posted November 12, 2012 Moderator Share Posted November 12, 2012 First half of the engine or frame number would be good. Link to comment Share on other sites More sharing options...
Dt175 Posted November 13, 2012 Author Share Posted November 13, 2012 402010175 is its frame number how do you discern it with that? Link to comment Share on other sites More sharing options...
Sacha Posted November 13, 2012 Share Posted November 13, 2012 Is it listed here http://dirtbike.off-road.com/dirtbike/review/yamaha-vintage-dirt-bike-id-guide-21792.html? Link to comment Share on other sites More sharing options...
blackhat250 Posted November 13, 2012 Share Posted November 13, 2012 looks like a CT3 Link to comment Share on other sites More sharing options...
Moderator Airhead Posted November 13, 2012 Moderator Share Posted November 13, 2012 Code 402 is for 1973 DT125A(B ) ? you will normally see the engine displacement shown in the casting at the base of the cylinder Link to comment Share on other sites More sharing options...
Dt175 Posted November 15, 2012 Author Share Posted November 15, 2012 Sorry for the late reply I got the code wrong it turns out its 482010175 not 0 so that probably changes it dramatically, i thought i better double check when you said it might be a 125 haha. i could see the displacement indication at the base of the cylinder but i may just be blind. Link to comment Share on other sites More sharing options...
Dt175 Posted November 15, 2012 Author Share Posted November 15, 2012 I just checked it against this model listing http://home.comcast....Model_codes.pdf And it says its 1974 AG175 I guess now my question is whats the difference between AGs and DTs? Link to comment Share on other sites More sharing options...
Moderator Cynic Posted November 15, 2012 Moderator Share Posted November 15, 2012 In truth. Probably 2 letters.... Link to comment Share on other sites More sharing options...
Dt175 Posted November 15, 2012 Author Share Posted November 15, 2012 haha very confusing! thanks for all your help though. Ive looked around and havent found any AG specific wiring diagrams and advice on which DT diagram i should use then? Link to comment Share on other sites More sharing options...
Moderator Cynic Posted November 16, 2012 Moderator Share Posted November 16, 2012 When i get home tonight i'll see what i can work out. Link to comment Share on other sites More sharing options...
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