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Makotosun
76 DT400 flywheel nut
- AirborneSilva
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Replied by AirborneSilva on topic 76 DT400 flywheel nut
Sorry I thought I mentioned that I have a Vape ignition 12v conversion on my DT400, the flywheel doesn't use a key.
2023 Tenere T7
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
19 Jul 2022 07:58
#11
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- Tom P
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Replied by Tom P on topic 76 DT400 flywheel nut
One thing about the way I use a cordless impact wrench is that I wasn't holding the flywheel with a tool, just with my hand. I honestly don't think I could strip either than nut or the crankshaft that way. If I was using a flywheel holder braced against the peg, that might be a different issue. Also by putting a piece of tape on the socket I can see when the nut has turned about 1/8 turn or so, and stop there.
I'm not familiar with the Vape system, and didn't realize it doesn't have a key. That must be very difficult to try to tighten the flywheel while maintaining it at a certain position!
I'm not familiar with the Vape system, and didn't realize it doesn't have a key. That must be very difficult to try to tighten the flywheel while maintaining it at a certain position!
19 Jul 2022 08:30
#12
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- AirborneSilva
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Replied by AirborneSilva on topic 76 DT400 flywheel nut
That's an understatement and the only thing I don't like about the Vape system, other than that it was pretty easy to install, but had to ask a question about one portion of wiring I wasn't sure of, and yeah holding the flywheel from moving while tightening isn't easy. I spent quite a while yesterday, probably close to 3 hours, trying to get it.
2023 Tenere T7
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
19 Jul 2022 08:59
#13
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- Andy_C
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Replied by Andy_C on topic 76 DT400 flywheel nut
Apologies - you did mention it was a Vape.
I didnt realise they dont have a key !!
Andy C
I didnt realise they dont have a key !!
Andy C
Ex Yam DT400C, Triumph Trident 660, Triumph 865, Kawasaki KH 400
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- AirborneSilva
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Replied by AirborneSilva on topic 76 DT400 flywheel nut
No worries Andy, I really wish it did have a key then it would be a perfect kit!
2023 Tenere T7
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
19 Jul 2022 15:45
#15
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- RT325
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Replied by RT325 on topic 76 DT400 flywheel nut
The original yamaha mag crank nut is quite long so not easily stripped. I wonder if it is high tensile steel like the crank would be--if there's such a thing as high tensile nuts!!. I remember at work we used to have a supplier come around & top up the nuts & bolts then oneday a new lot all gave in & stripped before sufficiently tight. Were very low quality. Talking mainly 6 & 8mm. Was a damn pain. I save all the bolts & nuts out of anything that looks good, like my old Honda car i wrecked & alll the bolts had Either a honda sign or something that meant 10 on the tensile scale as far as i know & you could feel the difference, just gave you confidence tightening nuts & bolts. Umm-& that had very little to do with the post sorry.
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- automan
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Replied by automan on topic 76 DT400 flywheel nut
Keys are for indexing only.
They provide 5% of the resistance to spin the flywheel.
cliff
They provide 5% of the resistance to spin the flywheel.
cliff
20 Jul 2022 01:16
#17
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- AirborneSilva
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Replied by AirborneSilva on topic 76 DT400 flywheel nut
RT325 - that gave me a bit more confidence to go ahead and put the cordless impact gun on it like Tom P does, with the tape for reference.
2023 Tenere T7
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
20 Jul 2022 01:34
#18
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- AirborneSilva
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Replied by AirborneSilva on topic 76 DT400 flywheel nut
Good to know but 5% could have made all the difference, speaking from a non-expert person.
2023 Tenere T7
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
1976 DT400C
1975 DT400
1981 DT175H
1972 DT2 250
1980 GT80
1972 JT2
20 Jul 2022 01:35
#19
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- RT325
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Replied by RT325 on topic 76 DT400 flywheel nut
I've mostly only used a rattle gun to undo the nut. I might've used one on a smaller motor to tighten the flywheel nut but not on a 250 or 360. I hear there's some very powerful battery inpact wrenches around these days. Would be interesting to do it up with that if it has a stated torque, then compare where you're at with a manual torque wrench & see if they're close. Trouble is, 'i think'--it's hard to be acurate without backing it off a little with a socket & bar then come up again with the manual torque wrench & see if it goes further around on the nut. Probably just me--& my strange ideas lol.
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