Author Topic: What to check before you start up the engin  (Read 414 times)

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Offline Sora

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What to check before you start up the engin
« on: June 28, 2017, 09:25:17 AM »
I have a 175 duel twin that I'm fixing up and was wondering what I should look at/replace before I try starting up the engine for the first time.
« Last Edit: June 28, 2017, 03:22:18 PM by Sora »

Offline rwgibbon

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Re: What to check before you start up the engin
« Reply #1 on: June 29, 2017, 06:09:07 AM »
No matter what else you do use a oil gas mix.

Good luck and enjoy.

Randy

Offline mnmrider

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Re: What to check before you start up the engin
« Reply #2 on: June 29, 2017, 06:28:26 PM »
Do you mean premix at first to make sure the oil pump is primed?
Marc

Offline rwgibbon

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Re: What to check before you start up the engin
« Reply #3 on: June 29, 2017, 07:19:29 PM »
Correct.

Offline Sora

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Re: What to check before you start up the engin
« Reply #4 on: June 29, 2017, 10:09:09 PM »
How much oil should I mix into the gas?

Offline BS Mechanic

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Re: What to check before you start up the engin
« Reply #5 on: June 30, 2017, 09:38:06 AM »
I'd go 20:1, but the exact ratio isn't critical, you want enough to cover for the injection pump on startup in case the pump has an issue.

Just good insurance against damage if the pump isn't working!  As soon as you're sure the pump is sending oil to the engine you can switch to straight gas.
« Last Edit: June 30, 2017, 09:47:27 AM by BS Mechanic »

Offline Sora

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Re: What to check before you start up the engin
« Reply #6 on: July 01, 2017, 09:28:12 AM »
Is there anything else that I should do?

Offline rwgibbon

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Re: What to check before you start up the engin
« Reply #7 on: July 01, 2017, 02:58:08 PM »
Have you checked or changed your transmission oil?
(I use straight 30 wgt. motor oil)

Is the inside of the tank clean or have you added
fuel filters?

Have you checked for spark and cleaned your carburetors?

Randy



Offline Sora

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Re: What to check before you start up the engin
« Reply #8 on: July 02, 2017, 10:22:53 AM »
Yes I did all of those. Also should I add fuel filters or are they not needed?

Offline BRT-GTR

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Re: What to check before you start up the engin
« Reply #9 on: July 03, 2017, 05:47:08 AM »
          Fuel filters are never a bad idea, especially on an old bike. A single mesh filter was originally fitted to the fuel tap, reserve pick up tube only, the short one but most owners fit one to both pick up tubes, extra insurance. 

  You don't say if you have rebuilt the engine. Would it spin over when you got the bike. The chrome bores tend to chip or bubble if the pistons are sat for a long time. Lift the heads and check if you haven't already done so. Does the clutch free up ? Ignition timing reset ?

    You should then be good to go.                                         Brian
Growing old is compulsory, Growing up is optional.

Offline Sora

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Re: What to check before you start up the engin
« Reply #10 on: July 03, 2017, 09:06:12 AM »
No I have not rebuilt the engine and I still need to free up the clutch and set the ignition timing.

 


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