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Old 10-01-2013, 11:35 AM   #1
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Default Trouble after 3" snorkel on Brute Force!

Did the mimb 3" snorkel on my 05 brute 750 and when I fired it up, ran poor and was smoking whiteish maybe blue smoke! Rejetted with a dynojunk kit with 144f 148r mains 38 pilot needle at second clip.Went back and forth on air mix settled on 2 1/4 turns pops slightly but runs great throught throttle but continues to blow light smoke when rev'd and sometimes at idle till engine is hot! Never smoked befor snorkel! Any suggestions? Needle position possibly?
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Old 10-01-2013, 02:54 PM   #2
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Blue smoke would be from oil.
Whitish smoke sounds like a head gasket issue maybe..?
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Old 10-01-2013, 03:30 PM   #3
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Putting on a snorkel doesn't cause an engine to start burning oil.
Just in case, check for oil in the airbox, under the filter.
144-148 DynoJet jets are BIG. Do you have an exhaust system and cams/pistons, etc?
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Old 10-01-2013, 03:53 PM   #4
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Quote: Originally Posted by NovaKaw650 View Post
Putting on a snorkel doesn't cause an engine to start burning oil.
Just in case, check for oil in the airbox, under the filter.
144-148 DynoJet jets are BIG. Do you have an exhaust system and cams/pistons, etc?
No oil in air box, stock motor and cams as far as I know, only had the bike a month or so! Stock exhaust except looks to have had the spark arrester remove and larger diameter tip welded on! Runs really good no stutter or bogs!
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Old 10-01-2013, 07:35 PM   #5
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Any chance it could be a sticking choke plunger?
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Old 10-02-2013, 02:43 AM   #6
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Quote: Originally Posted by MRT71 View Post
Any chance it could be a sticking choke plunger?
The DJ jets are way bigger than stock. Unless it's flowing way more air with the snorkels, it's rich.
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Modded airbox
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Dalton weights
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Other weird stuff

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Mercury Optimax 115hp
Minn Kota 70lb 24v trolling motor
Lowrance Electronics
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