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175 CT1 oil line diagram confusion -

  • EnduroDan
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175 CT1 oil line diagram confusion - was created by EnduroDan

I inadvertantly broke the oil injection line while taking of the head on my CT1 (I forgot to unbolt it from the head-duh!) I need to either fix it somehow or replace the line.  I am confused what to order.  On the bike the line feed into the head with a banjo bolt with a hole through it to feed the oil (the second picture minus the banjo bolt).  On the diagram in the parts manual, it doesn't look like that at all (the first picture).  I am assuming I need the hose in the diagram.  Is that correct?
 
  
Last edit: 03 Mar 2021 14:58 by EnduroDan. Reason: wrong picture sequence
03 Mar 2021 14:57 #1

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Replied by MarkT on topic 175 CT1 oil line diagram confusion -

There is a banjo bolt fitting on the base of the cylinder and another banjo bolt fitting on top of the pump.  They are connected with a small diameter rubber hose that has special spring clips as hose clamps.

Your picture isn't showing either banjo bolt...  hard to tell but looks like a broken hose sticking up?
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
03 Mar 2021 17:30 #2

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Replied by EnduroDan on topic 175 CT1 oil line diagram confusion -

I have attached a picture of the banjo bolt fitting on the top and it doesn't look like the one in the diagram. The hose in the picture that I circled is broken.  I ordered the hose in the diagram that was circled: I am trying to verify if that is the same as the broken hose in the picture.  The diagram is a little confusing to me.
04 Mar 2021 13:12 #3

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Replied by MarkT on topic 175 CT1 oil line diagram confusion -

That looks like the banjo bolt fitting for the cylinder, the special spring hose clamp, and maybe a small piece of old hose?

I'm not sure if the original hoses were formed or if they harden with age and heat and just take a set over the years.

The new hose you'll get is just a length of special size hose you cut to length.  It's not formed or bent.  See link for picture.

www.partzilla.com/product/yamaha/90445-05M07-00

Does that clear up the confusion?



 
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
Last edit: 04 Mar 2021 13:31 by MarkT.
04 Mar 2021 13:31 #4

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Replied by EnduroDan on topic 175 CT1 oil line diagram confusion -

Yes it does, thanks.  Now that I look closely at that top "banjo delivery pipe" it has the right angle to it - you can barely see it in the diagram.  Again, thanks for he help.
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04 Mar 2021 13:37 #5

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  • RT325
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Replied by RT325 on topic 175 CT1 oil line diagram confusion -

If you buy a hose that needs cutting to length just be careful not to kink it changing angles from pump to cylinder. Pipe should be fairly firm not a soft rubber. One more thing is if you need to remove the banjo on the pump to fit the hose there's a very fine spring in the bolt with a very small ball in the threaded hole that spring sits against, just be careful that's all. Should be able to flick the hose off as it is though but clip will need a help with a screwdriver to lever it off.
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05 Mar 2021 18:00 #6

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Replied by Mothersbaugh on topic 175 CT1 oil line diagram confusion -

And have several spotters standing by to watch for the clip when it flies off and departs for parts unknown behind you in the garage!!
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06 Mar 2021 10:49 #7

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Replied by Gr8uncleal on topic 175 CT1 oil line diagram confusion -

Mothersbaugh wrote: And have several spotters standing by to watch for the clip when it flies off and departs for parts unknown behind you in the garage!!

Sounds like me removing headlight lens clips - I reckon that there are one or two hiding in my garage roof! 

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I guess if it's possible, you could try doing it with someone holding a plastic bag over your hands, at least as much as is practical - if it flies off, it is stopped by the bag.
06 Mar 2021 11:52 #8

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Replied by MarkT on topic 175 CT1 oil line diagram confusion -

I always just slide those little clips down the hose with a screwdriver and away from the fitting...  remove the hose from fitting and then slide clip off end of hose. 

I think if you tried to pry the clip off the hose you'd probably ruin it... but maybe not, never tried it that way.
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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06 Mar 2021 12:19 #9

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Replied by Makotosun on topic 175 CT1 oil line diagram confusion -

MarkT wrote: I always just slide those little clips down the hose with a screwdriver and away from the fitting...  remove the hose from fitting and then slide clip off end of hose. 

I think if you tried to pry the clip off the hose you'd probably ruin it... but maybe not, never tried it that way.

What Mark said.
IF it isn't one thing, it's another.
06 Mar 2021 13:55 #10

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