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Author Topic: RD400 Kickstarter swap into R5  (Read 221 times)

Offline jalbes

  • Posts: 3
RD400 Kickstarter swap into R5
« on: May 22, 2018, 14:04:34 »
I'm a bit rushed, so excuse any lack of information.

My ratchet gear on my kickstarter stripped on my 1970 Yamaha R5. I'm looking at replacing it with and noticed that the RD400 used the same kickstarter assy up until 1978. In 1979 they changed the assy to what appears to be a simpler design. Can anyone confirm if this 1979 RD400 kickstart assy will fit in the R5/RD350 case?

Cheers!

Offline clem

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Re: RD400 Kickstarter swap into R5
« Reply #1 on: May 23, 2018, 18:12:59 »
I have a 79 and the gearing is different on the kickstarter. One year only. You should be able to find a used on on ebay for the R5 for a decent price.
"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline jalbes

  • Posts: 3
Re: RD400 Kickstarter swap into R5
« Reply #2 on: May 24, 2018, 09:00:22 »
OK, thanks. I was hoping it was a direct swap - too bad - I'm not a fan of that ratchet mechanism.

Offline teazer

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Re: RD400 Kickstarter swap into R5
« Reply #3 on: May 24, 2018, 13:53:18 »
Too many years since I had a 2R9 model to remember the differences, but it sounds like you could use a 79 as long as you changed the clutch drum and that probably also requires changes to all the other gears such as oil pump and tacho.

I am busing trying to fit a banshee (RZ350) kickstarter shaft inside a banshee side cover on an RD350/400 bottom end and there's a few more parts to be changed or modified.  Anything is possible but it isn't always cost effective.