Author Topic: Yamaha Circuit Magazine. 1977 1978 1979 Road racing and MX GP bikes.  (Read 1518 times)

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Offline Martin I Henry

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Taken from a recently scanned Yamaha Circuit Magazine.





I'll have one of each please !

Dave R.



Offline rosey250

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Re: Yamaha Circuit Magazine. 1977 1978 1979 Road racing and MX GP bikes.
« Reply #3 on: December 30, 2011, 08:45:05 AM »
   TZ750 with 105 bhp ??? Two stroke ?? Have I had my head in the sand all these years ??

Has anyone here heard them go? Has anyone ridden such a beast ??

From Rosey the Ostrich !
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Offline Zorak

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Re: Yamaha Circuit Magazine. 1977 1978 1979 Road racing and MX GP bikes.
« Reply #4 on: December 30, 2011, 10:14:48 AM »
anyone wanting to get a close up look at some nice historic bikes like TZ750's, TZ500's, TZ350's/250's and RGB500's plus a heap of historic Superbikes and Formula1 machines should try and get to Phillip Island over the Australia Day long weekend (January 27th,28th,29th) for the Island Classic meeting. there's usually a team of N.Z and UK PostClassic riders coming over to compete in an event called the 'Forgotten Era International Challenge' which is based on the old Trans-Atlantic series of the 70's and 80's.
i have raced in this event several times and although i'm not racing this time, i'm planing to be there for a look.
http://islandclassic.com.au/
tang tang tang tang tang tang tang tang

Offline mboddy

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Re: Yamaha Circuit Magazine. 1977 1978 1979 Road racing and MX GP bikes.
« Reply #5 on: December 30, 2011, 11:20:26 AM »
For the Sydney guys there is the Barry Sheene on 23rd to 25th March at Eastern Creek.
http://barrysheene.com.au/articles/content-1/press-releases-5.aspx

Or a bit sooner is PCRA Round 1 at Wakefield Park Goulburn on February 4th.

Hopefully I will be at both on my RD250LC and TZR250.

   TZ750 with 105 bhp ??? Two stroke ?? Have I had my head in the sand all these years ??

Has anyone here heard them go? Has anyone ridden such a beast ??

From Rosey the Ostrich !

We have a few of the TZ750s in the PCRA.
I have raced against Marcus riding his. He said he had to remember to always use the rear brake first to get the front down before braking.
I overheard the guys on the 1300cc four strokes wingeing that the TZ750s pull half a dozen bike lengths on them out of corners.
Wayne Gow would spin the rear wheel in the wet changing into top on the Phillip Island straight.
Vinduro Penrite Team
1980 IT125G, 1979 IT175F, 1984 IT200L, 1977 IT250D and IT400D

Offline Zorak

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Re: Yamaha Circuit Magazine. 1977 1978 1979 Road racing and MX GP bikes.
« Reply #6 on: December 30, 2011, 01:07:52 PM »
the fastest TZ750 i raced against was Geoff Brittons #33, but he had a huge crash in corner #1 at P.I. a few years ago and i don't think he ever fully recoved, i remember he was doing 1:44 lap times at P.I. the couple from N.S.W TZ's were ok in a straight line but not that fast overall, same as the N.Z. and U.K TZ's, these usually do mid to high 1:55's lap times. the 500 and 750 2strokes were fast against 90-100hp 4 strokes back in the day, but now with most unlimited 4strokes being around 1100-1300cc and producing 140 hp at the rear wheel (the fastest has 175hp at the rear wheel, mine has 125hp) the 100ish hp from the multi cylinder 2strokes isn't enough. they still sound great though, at 10,000rpm a 2stroke multi is a sweet sound  ;D
tang tang tang tang tang tang tang tang