Don't take it wrong but the Pull start on the SH engines are some of the strongest on the market.............Proper instructions on pull starting a nitro engine would probably stop the problem................That being said there is only one starting system I know of just made for the SH engines and thats a [link=http://xtm-dealer.com/zencart/index.php?main_page=product_info&cPath=13&products _id=180]SURE START[/link] good luck

That would be the way to stop the problem with out learning anything...........LOL