z200tlrb hpdi sticky butterflies

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TBTech24

Seaman
Joined
May 3, 2011
Messages
56
Starts up and idles fine. When you give it throttle and come back to idle the butterflies stick open just a little bit. RPMs won't drop back down to 850. Linkage is set cam follower lines up like its suppose to. How do I get the butterflies to close they should. Idle stop screw touches the throttle at.idle like it a suppose to
 
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robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: z200tlrb hpdi sticky butterflies

Maybe check all linkeages for binding or jamming. I've always used a drop of oil on each end of butterfly shafts on the outside of each carb to help reduce wear and prevent binding. Good Luck!
 
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TBTech24

Seaman
Joined
May 3, 2011
Messages
56
Re: z200tlrb hpdi sticky butterflies

thanks will do. i know all the linkage checks out. that was the first step i did. then noticed the butterfly assembly sticks a little bit.
 
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Ldavidgrover

Petty Officer 2nd Class
Joined
Feb 22, 2012
Messages
197
Re: z200tlrb hpdi sticky butterflies

Ive had them stick so bad from salt that I had to replace the entire intake
 
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robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: z200tlrb hpdi sticky butterflies

Maybe butterfly shafts have worn the carb bodies causing sticking? Maybe polish edges of butterflys and carb mouth sufficient for smooth operation. Any deposits in carb mouth that might cause sticking?....like the carbon on mouth of throttle body on cars?
 
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