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Old 12-23-2018, 04:53 PM
n518jh n518jh is offline
Join Date: Jan 2015
Location: Sun City West, AZ
Posts: 35
Smile Rotax Soft Start Module

I have been having some hard start problems, and then some no start. After lots of advice from you guys, it turns out I have/had an after market Conair Soft Start Module, that was bad. bypassing the unit, all is going well. The module left the factory in late 2011, and was sold through

My question is, how important is it to have a soft start module for wear and tear on the engine? And other reasons? I'm wondering whether I can just eliminate it from the ignition stream. Thoughts?

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Old 12-23-2018, 06:56 PM
Join Date: Nov 2007
Location: Jesup, Iowa
Posts: 1,630
Default I'd respond this way - -

Soft-start became standard several years ago. Also changed the flywheel after that to further help prevent starter sprag problems. That indicates Rotax considers it important. Either 'fix' is expensive.
John Bender
Flying RV-12 - Serial #120036
Paid in May ( 5-2019 )
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Old 12-24-2018, 07:00 PM
RFSchaller RFSchaller is offline
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,460

If your engine is anywhere near TBO you might just go to overhaul. If there is considerable time left you might as well bite the bullet and replace the soft start.
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Old 12-25-2018, 08:19 AM
Infidel's Avatar
Infidel Infidel is offline
Join Date: Sep 2011
Location: WV22
Posts: 848

If you are in need of a soft start unit, I have one. New and unused.
RV-4 0320\D3G 160, Whirlwind 200GA 70".
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Old 12-26-2018, 01:08 PM
n518jh n518jh is offline
Join Date: Jan 2015
Location: Sun City West, AZ
Posts: 35
Default Let's talk

If you have the soft start module I need, let's talk 480-249-6543
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