Slow idle drop

Questions and Answers about the best carb and Head mods available for the KDX.
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jjavaman
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Slow idle drop

Post by jjavaman »

Hi guys, so I got the head and carb mod done and seem to have a problem. When I shut the throttle,the revs don't drop as fast as they used to? It's like the slide takes its time dropping and I am having to pull the clutch in and/or hit the brakes to make a corner instead of shutting the throttle and just coasting?
When the bike is not running and I twist the throttle I can hear the slide snap shut, same as when it's idling, I can feel it shut.
The mods are great, love everything else about this mod, I need to get this thing fixed.
97-220 with a PC pipe. 2015- RB carb and head mod
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6 Riders
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Re: Slow idle drop

Post by 6 Riders »

Sounds like an air leak to me. Try replacing the reed cage gasket and check the clamps to the carb boot on the reed side. Could be a slight leak at the head gasket as well, so check the torque on that too.
newbbewb wrote:^what he said.
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*side note...I'm drunk, so try to read what I'm trying to say, instead of what I actually type
jjavaman
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Slow idle drop

Post by jjavaman »

I'll check that out,put a new piston and boyesen reeds in it as well so I'll start there, thanks eh!
97-220 with a PC pipe. 2015- RB carb and head mod
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bufftester
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Re: Slow idle drop

Post by bufftester »

Hanging like that is usually indicative of an air leak, so as mentioned, check all your boots and clamps.
jjavaman
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Re: Slow idle drop

Post by jjavaman »

Thanks guys, I didn't tighten the reed cage up enough. Problem seems to be fixed!
I'm embarrassed that I missed that.
97-220 with a PC pipe. 2015- RB carb and head mod
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