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Makotosun
1977 DT400 timing
- 1977-Dt400
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1977 DT400 timing was created by 1977-Dt400
I just want to make sure I am timing this correctly. I just installed the new 12v vape ignition system. I have the dial gauge in the spark plug hole. I turn the rotor to the left/ counter clock wise until I reach top dead center. At this point I move the gauge to zero it out. Then I turn the rotor to the right/ clock wise. My gauge reads inches so one full spin and then 10 more ticks. Carefully take off the rotor line up the lines on rotor and stator and then torque down the nut. Am I missing anything? She doesn't want to start up.
Also trying to attach a short video of myself timing it but it says "failed to create attachment directory" any idea how to solve this?
Also trying to attach a short video of myself timing it but it says "failed to create attachment directory" any idea how to solve this?
21 Jan 2024 13:33
#1
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- Ht1kid
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Replied by Ht1kid on topic 1977 DT400 timing
You can post a link from YouTube
21 Jan 2024 14:58
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- RT325
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Replied by RT325 on topic 1977 DT400 timing
I've forgotten how to read a dial gauge but found this inch gauge link.
So one lap plus 10=90 thou= 2.1mm btdc. Is my maths ok? not sure.
Does vape say 2.1?.
Hope it works out well with the vape.
www.amazon.com/Dial-Indicator-1-x-0-001/dp/B00UMD4DIU
Hold that flywheel solid & tighten it well, especialy if it doesn't run a crank key.
So one lap plus 10=90 thou= 2.1mm btdc. Is my maths ok? not sure.
Does vape say 2.1?.
Hope it works out well with the vape.
www.amazon.com/Dial-Indicator-1-x-0-001/dp/B00UMD4DIU
Hold that flywheel solid & tighten it well, especialy if it doesn't run a crank key.
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- 1977-Dt400
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Replied by 1977-Dt400 on topic 1977 DT400 timing
2.9 is what i'm trying to set it at. Had an issue of it slipping when trying to torque down the rotor nut. I will try and set it again tomorrow. I believe 2.9 mm is .11 inch. Am I wrong thinking one full spin of the dail is .1 and then the 10 more ticks would be the .01 to make it .11? If this is correct ill set it and try to make a clear video to double check with you guys!
21 Jan 2024 18:04
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- RT325
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Replied by RT325 on topic 1977 DT400 timing
I dunno haha. Looking at the gauge in the link its 100 thou full circle!! & i think you need 116 thou.
But am i wrong.
Ok i cheated after writing that & googled 2.9mm in thou & came back @ 114.173 thou.
I'd say ya close enough if going full circle & to the 10 btdc 'i think'.
Row of question marks ????????????????????? lol.
But am i wrong.
Ok i cheated after writing that & googled 2.9mm in thou & came back @ 114.173 thou.
I'd say ya close enough if going full circle & to the 10 btdc 'i think'.
Row of question marks ????????????????????? lol.
21 Jan 2024 22:56
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- Sneezles61
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Replied by Sneezles61 on topic 1977 DT400 timing
Is the plug straight in the head or angled?
Sneezles61
Sneezles61
22 Jan 2024 06:11
#6
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- 1977-Dt400
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Replied by 1977-Dt400 on topic 1977 DT400 timing
The spark plug is straight in the head.
22 Jan 2024 13:54
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- Sneezles61
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Replied by Sneezles61 on topic 1977 DT400 timing
Your gauge will work without removing the head.
Sneezles61
Sneezles61
23 Jan 2024 06:07
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