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HELP NEEDED

  • zachvanduren
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HELP NEEDED was created by zachvanduren

I recently bought a 1975 Yamaha DT175. I know nothing about motorcycles and wanted something cheap that I could learn to fix and ride. I have noticed a couple tubes or lines that come from places but don’t go anywhere, any help as to where they go? I have attached pictures.
03 Aug 2022 15:26 #1

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Replied by Pete-RT1 on topic HELP NEEDED

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 from the UK
First picture looks like battery breather, could be oil thank overflow but I can't see.
Other two are also breathers.
None of them connect to anything.
Good luck with your project.
Yamaha RT-1
Yamaha CT1-B
Yamaha CT1-C
Yamaha AT1-C
Yamaha CT3
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03 Aug 2022 15:35 #2

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Replied by Ht1kid on topic HELP NEEDED

Welcome from Germantown Tennessee 1st hose is the auto lube tank overflow or vent tube or the battery vent tube 2nd is crankcase vent tube 3rd is magneto vent tube. I hope you enjoy your new to you motorcycle 
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03 Aug 2022 15:38 #3

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Replied by zachvanduren on topic HELP NEEDED

The exhaust coming out of the bike is real white. Any ideas why this could be happening?
03 Aug 2022 15:57 #4

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Replied by Ht1kid on topic HELP NEEDED

Need more info is it running? Out the back of the exhaust or front. Post pictures 
03 Aug 2022 16:32 #5

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Replied by AirborneSilva on topic HELP NEEDED

Welcome from the Space Coast of Florida, you've come to the right place for answers/help!
1976 DT400C
1981 DT175H
1972 DT2 250
03 Aug 2022 16:41 #6

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Replied by RT325 on topic HELP NEEDED

Welcome from NZ. First rule--DON"T PANIC. I'd guess its just typical twostroke smoke as burns oil in small quantities in with the fuel Also if it's been sitting for quite a while it can slowly drip oil into the motor by a very minor fault in the oil pump stop valve small ball & spring, but it'll improve with a good road run. It 'is' possible that the exhaust internal noise deadening packing along the exhaust inner walls are soaked with oil so she'll smoke the town out untill that burns off. Always looks worse than it is. Just be sure you have oil in the autolube tank & oil in the transmission. The trans filler dipstick hole is somewhere by the kick start & have it sitting fairly vertical. The oil level in the trans is somewhere down around kick shaft level if no dipstick. Best of luck.
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03 Aug 2022 16:59 #7

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Replied by MarkT on topic HELP NEEDED

Welcome! 

Great bike!  (white smoke sounds normal especially if it's been parked a while and/or not ridden much lately...  two stroke engines are lubricated by oil that mixes with the fuel.  Oil burns and that's where the smoke comes from.

Warm it up and go for a nice ride and see if it mostly clears up.  Also keep an eye on transmission oil level. 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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03 Aug 2022 17:01 #8

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Replied by LETSJET on topic HELP NEEDED

You have a problem if it Stops smoking.
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03 Aug 2022 18:43 #9

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