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Title: 07 yamaha bigbear 400 irs snorkel help please!!!! Post by: trailrider77 on June 30, 2012, 11:08:10 AM Hello everyone i just installed a submarine snorkel kit on my 2007 yamaha bigbear 400 took it for a little test drive yesterday and now for some reason it takes for ever to warm up and when im driving and open up the throttle it seems to bog down some and back fire through the snorkle when i bought the kit i read that i didnt have to change the jet in my carb but was i suppose to adjust something and help will be greatly appriciated.
Title: Re: 07 yamaha bigbear 400 irs snorkel help please!!!! Post by: MedicMudder on July 07, 2012, 09:19:46 PM sounds like you have a fuel/air problem,it is my understanding you have to chage the jets when u snork a atv. Due to changing the air/fuel mix.Google some Yamaha forms see if they will help,good luck.
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