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- RE: 1978 yamaha xs400,
Freud
 , Mar-09-06, 01:14 AM, (1)
- RE: 1978 yamaha xs400,
Freud, Mar-11-06, 06:43 PM, (2)
- RE: 1978 yamaha xs400,
Growl , Mar-12-06, 02:22 AM, (3)
- RE: 1978 yamaha xs400,
cafe canuck, Mar-12-06, 04:55 PM, (4)
- RE: 1978 yamaha xs400,
cafe canuck, Mar-19-06, 00:57 AM, (5)
- RE: 1978 yamaha xs400,
Schurkey , Jun-23-06, 00:56 AM, (6)
- RE: 1978 yamaha xs400,
dmar836 , Jul-05-06, 01:14 AM, (8)
- RE: 1978 yamaha xs400,
Eric , Jul-19-06, 11:30 AM, (9)
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Freud
unregistered user
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Mar-09-06, 01:14 AM (EDT) |
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1. "RE: 1978 yamaha xs400"
In response to message #0
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>Does anybody know anything about these bikes? I'm a honda
>guy but there is one for sale with 6000 mi. I'm wondering
>hp, top speed and does it have a cdi box or points and coil
>ignition? I can't find too much info on the net on these
>bikes but a few of the pictures looked kinda cool. Square
>tank is a bonus.
78 ? ... not sure (points/CDI) ... I'll give a 90% guess that its a CDI
HP? speed? ... its going to be a bit faster than a CB350 ... maybe 5 hp more ... maybe .75 sec in the quarter mile ... I seem to remember the motor was biased for top end HP and was a high revver - ask what the tachs redline is ... and the square tank one .. WAS Yamahas cafe version ... so you have a headstart there ... and I have seen a gloss black painted one - that looked damn good. |
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Freud
Member since Dec-9-02
890 posts |
Mar-11-06, 06:43 PM (EDT) |
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2. "RE: 1978 yamaha xs400"
In response to message #1
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... and ... keep in mind that that bike would have a direct relationship to the vaunted Yam RD frame/chassis heritage ... so it probably handled/stopped very well ... like a Cafe is supposed to **********************************
Save the USA ... kill a lobbyist |
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Schurkey
unregistered user
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Jun-23-06, 00:56 AM (EDT) |
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6. "RE: 1978 yamaha xs400"
In response to message #5
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I had a '79 XS400. Maroon, teardrop tank and sissy bar crap. At that time, it was the fastest accelerating (4-stroke) 400 sold in America. Only the ring-ding RD400 (?) was quicker. Took mine on a 4,000 mile trip the first summer I owned it. Ran 7K all day long, day after day. Had some problems with extra neutrals in the gearbox. This was a recognized, "everyone knows about it, they all do that" thing. Had problems with the screw-type valve adjustment. One backed off during one of those false-neutral WFO throttle deals. Beat hell out of the adjuster, and had problems getting another from Yamaha--they kept sending me shorter screws than what was in the bike. Like every bike from the late '70's and early '80's, it soon succumbed to Japanese Exhaust System Disease. I stuffed a 2-1 header on the bike and had no further exhaust problems. I had to rebuild it at perhaps 12K--15K. I don't really remember the mileage. Sold it soon after, as I had just bought another bike and didn't think I needed two. If I could find that bike again, I'd like to buy it back, warts and all. |
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Eric
unregistered user
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Jul-19-06, 11:30 AM (EDT) |
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9. "RE: 1978 yamaha xs400"
In response to message #5
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the bikes that look like this one are quite hard to find, i've only seen about 5 of them in new york, ohio and pennsylvania and one of those was the one i bought, i was luck enough to get it from a guy who didn't know what he had, for $300, i'm a lucky punk, good luck to you, i love mine, it runs with my rd400 til around 80 and then the rd just continues to pull farther ahead. fast little 400 |
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