Author |
Message |
Topic: Eastern European's Infiltrate |
Dave B
Replies: 85
Views: 148136
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Forum: Other Strokers Posted: Fri Sep 11, 2020 8:36 am Subject: Definitely Diffrent! |
Not mine, or belonging to anyone I know, but this MZ special is certainly different.
https://www.ebay.co.uk/itm/1972-MZ-Lowrider-Bobber-ETS250-ETZ301-Hardtail-Springers-May-P-ex-WHY/164346017480?_ ... |
Topic: The invention of the REAL two stroke engine. |
Dave B
Replies: 3
Views: 7316
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Forum: Petrolhead Chat Posted: Fri Apr 10, 2020 8:57 am Subject: The invention of the REAL two stroke engine. |
We all did! |
Topic: The invention of the REAL two stroke engine. |
Dave B
Replies: 3
Views: 7316
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Forum: Petrolhead Chat Posted: Tue Apr 07, 2020 12:52 pm Subject: The invention of the REAL two stroke engine. |
This is the basis for the entry in Wikipedia. If you want to see all the pictures, you can find the in my book:- Two-Stroke Motorcycle Engine Maintenance and Repair
by Dave Boothroyd. |
Topic: The invention of the REAL two stroke engine. |
Dave B
Replies: 3
Views: 7316
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Forum: Petrolhead Chat Posted: Tue Apr 07, 2020 12:46 pm Subject: The invention of the REAL two stroke engine. |
This is an article I wrote about ten years ago about Joseph Day.
Forgotten Hero
The man who invented the two-stroke engine
By David Boothroyd
You would think that the man responsibl ... |
Topic: Reg The RV125 … 175 … 200 |
Dave B
Replies: 30
Views: 64634
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Forum: Suzuki Posted: Wed Jan 08, 2020 10:04 am Subject: Reg The RV125 … 175 … 200 |
What a great story. Obvoiusly a lot of work and problem solving, but in a very good cause. Thanks for telling us about it. |
Topic: Eastern European's Infiltrate |
Dave B
Replies: 85
Views: 148136
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Forum: Other Strokers Posted: Fri Nov 29, 2019 10:27 am Subject: Eastern European's Infiltrate |
It's a shame you gave up on the ally monocoque. I have a friend who lives Bedford way who made several LCR copies for 80cc race bikes when that class was running. Just like the Louis Christian frames ... |
Topic: YZ/RD 80 Race bike |
Dave B
Replies: 3
Views: 13979
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Forum: Yamaha Posted: Sun Nov 03, 2019 9:10 am Subject: YZ/RD 80 Race bike |
Hi James,
I seem to be constitutionally incapable of leaving things standard, so I can tell you that there were a lot of changes to the porting. To some extent I was a bit ahead of my time in that, e ... |
Topic: YZ/RD 80 Race bike |
Dave B
Replies: 3
Views: 13979
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Forum: Yamaha Posted: Sun Oct 27, 2019 10:14 am Subject: YZ/RD 80 Race bike |
This is my 80cc race bike in its final configuration. It has a YZ80 engine, a cold air box for the carb, an MBA fairing and a CBR600 front brake. At the time I was making computer designed exhaust pip ... |
Topic: Then and Now |
Dave B
Replies: 2
Views: 6631
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Forum: Petrolhead Chat Posted: Fri Oct 25, 2019 10:19 am Subject: Then and Now |
They changed the golf balls for a giant toaster! |
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