Author Topic: Yamaflop  (Read 4116 times)

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Offline Digga

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1977 Yamaha YZ250D, 1977 Yamaha YZ400D, 1980 Yamaha YZ125G

Offline Tomas

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Re: Yamaflop
« Reply #1 on: August 07, 2016, 06:03:20 PM »
Z spokes, what a "great" idea  ???

Offline 80-85 husky

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Re: Yamaflop
« Reply #2 on: August 07, 2016, 06:31:35 PM »
along with YEIS...Yamaha's Excellent Ideas Syndrome

Offline skypig

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Re: Yamaflop
« Reply #3 on: August 07, 2016, 06:54:24 PM »
I love those articles. Thanks for the link.
Not Yamahas finest moment by all reports!

Offline Hoony

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Re: Yamaflop
« Reply #4 on: August 07, 2016, 08:27:10 PM »
at least the mags told it how they saw it.

were they really that bad ?
Long time Honda Fan, but all bike nut in general, Big Bore 2 stroke fan.    http://www.youtube.com/watch?v=XJoKP6MawYI
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Offline Nathan S

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Re: Yamaflop
« Reply #5 on: August 07, 2016, 08:34:08 PM »
My understanding is that the 84/85 were slugs for the same basic reasons as the 90~93 models were: all of the power producing parts were designed to work at different points of the rev range. Not that the fundamentals were wrong, or that any single part is "wrong", just that the parts didn't work together.

I've had a couple of YZ125Ls. I didn't think they were that bad, but nor were they bikes that I found easy to love.
The good thing about telling the truth is that you don't have to remember what you said.

Offline Lozza

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Re: Yamaflop
« Reply #6 on: August 08, 2016, 10:20:06 AM »
Engine should make really good power, I would look at the PV opening/pipe /ignition mainly the pipe
Jesus only loves two strokes

Offline skypig

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Re: Yamaflop
« Reply #7 on: August 08, 2016, 12:49:46 PM »
Engine should make really good power, I would look at the PV opening/pipe /ignition mainly the pipe

They claim in the article it was extremely difficult to get good power back in the day, no matter what was done, including fitting older model barrels.

Offline Rossvickicampbell

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Re: Yamaflop
« Reply #8 on: August 08, 2016, 01:08:59 PM »
I had an 83 125 for my son - one of the most impressive bikes I have ridden.
1974 Yamaha YZ360B
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Offline Lozza

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Re: Yamaflop
« Reply #9 on: August 08, 2016, 02:28:55 PM »
Engine should make really good power, I would look at the PV opening/pipe /ignition mainly the pipe

They claim in the article it was extremely difficult to get good power back in the day, no matter what was done, including fitting older model barrels.
Well I am very skeptical about analysis from US mx magazines, a similar Yamaha cylinder has no trouble pushing 30hp out even with relatively small 30mm carbies.
Jesus only loves two strokes

Offline fred99999au

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Re: Yamaflop
« Reply #10 on: August 08, 2016, 04:40:03 PM »
Only one way to settle this then Lozza. We need to find you a YZ125L, to carry out some scientific experiments on.

Offline 80-85 husky

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Re: Yamaflop
« Reply #11 on: August 08, 2016, 06:42:14 PM »
yet the it "L" models were good??

Offline Lozza

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Re: Yamaflop
« Reply #12 on: August 08, 2016, 11:51:51 PM »
Only one way to settle this then Lozza. We need to find you a YZ125L, to carry out some scientific experiments on.

Shit yeah , if all the cycle parts break after the first meeting I'll count that as a win  :D :D
Jesus only loves two strokes

Offline James Lee

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Re: Yamaflop
« Reply #13 on: August 09, 2016, 09:00:14 AM »
I had an 83 125 for my son - one of the most impressive bikes I have ridden.
Same here,I had one for years and still believe its the fastest 125 I have ever riden.

Offline skypig

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Re: Yamaflop
« Reply #14 on: August 09, 2016, 09:43:49 AM »
Story claims the '83 was faster than the '84 by a wide margin.
Goes on to say some resorted to fitting '83 cylinders.

It was two steps forward, one back during the steep learning curve of Japanese MX bikes in the crazy rate of development from '73 - '88.

Some would say the '82 RM125 was slower than the "Case Reed" '81. At least it was universally praised as easier to ride. I believe they went back to the Case Reed after two years.

These days it's bold new graphics one year, "revised suspension" settings the next.... Even "total redesigns" are fairly "incremental".