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Richie_31

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Posts posted by Richie_31

    Question regarding Reed Valve

    in Yamaha Workshop

    Posted

    HI everyone! I would like to ask regarding DT 125 Reed Valve. Is reed valve should totally closed upon inspection? I noticed mine has a gap of about 1 mm, all four petals, though they are correctly installed. Next, can this gap cause combustion leaks? And finally, Can this gap affect my idle? Thanks :)

    DT 125 Problem

    in Classics

    Posted

    Hi everyone! I encountered hard starting with my DT even when the engine is warm. Everytime i check the plug, it's wet. Replacing with dry plug will easily start. I observed a weak spark so i replaced the source coil (reading is 150 ohms). The new source coil has a reading of 420 ohms. Now, i can easily start her but the problem is, she give me a little bit rough ride especially on 3000rpm and rough deceleration from 4K rpm and up to 3K rpm. Idle is ok but unstable. At first start, she gave me 2K rpm idle but after a test run, it will drop to 1k rpm so i need to adjust again. I cleaned the carb, even replace the pilot jet and main jet but it's still the same. It's like a sort of timing problem. Is there a way I can adjust the timing? I'm just wondering, before I have a nice ride with her but after i changed the source coil its different. I tried to reinstall the old one but it can no longer start the bike. Is this an electrical problem? Data for my electrical system are as follows:

    Source coil - 420 ohms (new), 150 ohms (old)

    Ignition Coil

    Primary - 1 ohm

    Secondary - 5K ohms

    Pulse coil - 9 ohms

    Plug cap - replaced with new one

    Plug - NGK B8ES

    Thank you :)

    My DT 125

    in Yamaha Gallery

    Posted

    Oh thanks NEV! I have no idea there is some documents regarding Frame Numbers that exist like this. Anyway, thank you so much for the effort Nev, I really appreciate it. I'm happy i've found this site, you really help us a lot - keep up the good work guys! :)

    Nev, I'll post some of the troubles/ issues i encountered with my bike and i need your opinion together with Oldgitonabike but i think i will post it on a desired forum soon. :)

    My DT 125

    in Yamaha Gallery

    Posted

    SAM_04572.jpg

    Here's my DT 125, 1995 model, aircooled, all stock engine, but i don't know what kind of DT class (is it X?). I've made some modifications recently like lifting the rear until the rear mudguard will just little bit higher than front mudguard by mounting monoshock extender but my sidestand becomes shorter so i'll replace my sidestand with a longer one soon. Also, i installed clear tube from autolube to carb to monitor 2T oil flow. Next, i installed external fuel filter between fuel tap and carb. Then lastly, i installed a smaller mirror.

    Hi Everyone!!! :)

    in New Members Welcome Area

    Posted

    My name is Richie from Philippines. I just love Yamaha bikes since I was a child. I have 2 Yamahas right now: 100 Enduro and DT 125. I am happy I found this YOClub on the net and it's really a privilege to be a part of this club. More power to YOC!!! :)

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