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Forum: Engines & props

11 November 2018, 20:35

Replies: 4

Yamaha 70hp lightweight cowling

Views: 780

Posted By Roflhat

Definitely need a cowling for the rules, has to...

Definitely need a cowling for the rules, has to be a standard engine. I've found that losing around 10kg got us from 67.83mph to 70.10mph, which is pretty good going. So a few kilos more removed from...

Forum: Engines & props

11 November 2018, 12:48

Replies: 4

Yamaha 70hp lightweight cowling

Views: 780

Posted By Roflhat

That would be a neat solution, the lower cowling...

That would be a neat solution, the lower cowling is metal so heavier too.
Don’t think I’d be allowed to change the design of the cowling with the rules, would have to stay with the same design but...

Forum: Engines & props

11 November 2018, 12:24

Replies: 4

Yamaha 70hp lightweight cowling

Views: 780

Posted By Roflhat

Yamaha 70hp lightweight cowling

Looking to shave a few kilos off my yam 70hp 2 stroke. It’s already pull start only with no power trim etc. I’ve not weighed the cowling yet but at a guess I’d say it’s 5/6 kilos. Would like to trim...

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