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Old 04-13-2008, 05:34 AM   #31
AntonLargiader
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Quote:
Originally Posted by RGregor
This is an early photo of #83. Look at the carbs, the setup looks the same.
The bikes didn't always have race motors in them. One of the pictures (could be this one; there aren't all that many pictures overall) was taken on a weekend where they blew up the motor and grabbed the motor from Udo's street bike. I think they blew that one up also. His street motor wasn't nearly stock, but it did have the inward-facing intakes because he used the regular airbox. There's also a bike out there in some other picture that was more of a practice bike and it had relatively stock intakes also, as did the fuel injected bike. But Udo was pretty clear that all of the race motors, back to 1970, had either rearward or outward facing intakes and the final configuration of #83 was not his work. And the pictures that show the stock-looking intakes don't have the strut going through the horn, if there is a strut at all (I think those appeared mid-76).

I bet the change happened at Johnny's. Maybe someone blew it up, changed the heads for some reason, whatever. Those bikes were always works in progress. I didn't realize Johnny's was racing that bike as early as '78.

Anyone have good pictures of the bike as raced by Johnny's?
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Old 04-19-2008, 06:50 PM   #32
funhouse
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#83 / Daytona '76

Quote:
Originally Posted by RGregor
This is an early photo of #83. Look at the carbs, the setup looks the same.
Rudi: Interesting picture....it shows the aluminum sheet between the carbs and the cylinders.....apparently the barrels were lifting off the engine case at full rpms on the banking, oiling the foot pegs and making for 'rider problems' .... Todd banged them together just before the start and I don't think they were ever used again......not elegant and I didn't consider replicating them during the restoration.....Bruce
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Old 04-19-2008, 06:57 PM   #33
funhouse
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Johnny's BMW

Quote:
Originally Posted by AntonLargiader
The bikes didn't always have race motors in them. One of the pictures (could be this one; there aren't all that many pictures overall) was taken on a weekend where they blew up the motor and grabbed the motor from Udo's street bike. I think they blew that one up also. His street motor wasn't nearly stock, but it did have the inward-facing intakes because he used the regular airbox. There's also a bike out there in some other picture that was more of a practice bike and it had relatively stock intakes also, as did the fuel injected bike. But Udo was pretty clear that all of the race motors, back to 1970, had either rearward or outward facing intakes and the final configuration of #83 was not his work. And the pictures that show the stock-looking intakes don't have the strut going through the horn, if there is a strut at all (I think those appeared mid-76).

I bet the change happened at Johnny's. Maybe someone blew it up, changed the heads for some reason, whatever. Those bikes were always works in progress. I didn't realize Johnny's was racing that bike as early as '78.

Anyone have good pictures of the bike as raced by Johnny's?
Anton: Johnny got the bike at the end of the '76 season when Butler&Smith got out of the racing biz......San Jose got the second and Ft.Worth the third......Johnny's is the only one of the three to survive.....Johnny painted it red to match the then-new '77 R100S.....Ron Pierce won the AMA National at Louden that year on #83, the bike was raced sporadically for the rest of the year and stuffed in the corner of his shop where I found it in '79... I'd have to ask Udo about the carb setup but I know Johnny was not fond of B&S's high compression = horsepower approach to tuning...the bike was easy to bump start on pump gas the entire time I owned it..Bruce
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Old 04-20-2008, 12:47 PM   #34
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As far as I know this is a picture of Daytona '76. Must be early in the season as the bike still has the stock ATE breaks.

Quote:
Originally Posted by funhouse
Rudi: Interesting picture....it shows the aluminum sheet between the carbs and the cylinders.....apparently the barrels were lifting off the engine case at full rpms on the banking, oiling the foot pegs and making for 'rider problems' .... Todd banged them together just before the start and I don't think they were ever used again......not elegant and I didn't consider replicating them during the restoration.....Bruce
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