901banshee Posted August 3, 2011 Report Share Posted August 3, 2011 Anybody have any experience with these? Tried a search but couldnt find anything. I find it hard to get 5 hp with these. http://www.thunderproducts.com/u_f_o.htm Quote Link to comment Share on other sites More sharing options...
NYUK Posted August 3, 2011 Report Share Posted August 3, 2011 its bullshit. Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted August 3, 2011 Report Share Posted August 3, 2011 We used to do that 10-15 yrs ago with fuel resistant epoxy ....alot cheaper too. Helped the bottom-end on big carbs like 44mm mikunis on zillas. Quote Link to comment Share on other sites More sharing options...
camatv Posted August 6, 2011 Report Share Posted August 6, 2011 its a goofy way to get a shitty ass old carb to work better. there is a reason the round slide carbs disapeared from existance except on yamaha's atv back in the early 80's// i fyou never ever ever ever plan to get rid of the stock carbs they might be a nice improvement to throttle response but i doubt 5hp more?? Quote Link to comment Share on other sites More sharing options...
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