high idle revs

[biz1980]

can anyone tell me how to lower the idle revs on an 07 yamaha ybr.
cheers

[P.]

theres a screw on the carb you can twist with your hands.

Just turn this and adjust it when the engine is warm, should sit around 1300-1500 warm I think.

[biz1980]

which way should i twist as iv been told that turning the wrong way could blow the engine.....and also i would have to do it when the engine is switched off?

[clancy]

it will not blow the engine. just turn it, if the revs go up then turn it the oposite way so they go down.

do it with the engine running and warm, that way you can hear if the revs are going up or down
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KLX 300r

[biz1980]

ok kool thanks both for the info

[biz1980]

hi sorry to be a pain in the arse but i went out and had a look and could not see any sign of a screw you can turn with your hand.... the only screws i could see in the engine area were 3 small screws next too where the choke is on the opposite side to the choke.

on the upside by looking i noticed a small pipe under the choke had come off so pushed it back on dunno if thats imporntant or not haha.

[biz1980]

hi sorry to be a pain in the arse but i went out and had a look and could not see any sign of a screw you can turn with your hand.... the only screws i could see in the engine area were 3 small screws next too where the choke is on the opposite side to the choke.

on the upside by looking i noticed a small pipe under the choke had come off so pushed it back on dunno if thats imporntant or not haha.

[biz1980]

hi sorry to be a pain in the arse but i went out and had a look and could not see any sign of a screw you can turn with your hand.... the only screws i could see in the engine area were 3 small screws next too where the choke is on the opposite side to the choke.

on the upside by looking i noticed a small pipe under the choke had come off so pushed it back on dunno if thats imporntant or not haha.

[clancy]

if you dont have one that you can do by hand youll need a screw driver to do it.

you know what the carb is yeah ? it will be a tiny flat head srew on the carb
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KLX 300r

[neil.]

[clancy]

[biz1980]

mines not fuel injected.....

[clancy]

[neil.]

In that case it's either a weird import or 05/06 model that was registered in 2007.

Grab the manual - https://dl.dropbox.com/u/175946/U3D9E0.PDF

On page 6-13 is the bit about adjusting idle speed via the carb.

[biz1980]

[clancy]

https://i623.photobucket.com/albums/tt314/clancy_07/Motorcycle-Carburetor-Troubleshooting-2.jpg

will look something like that, roughly. with a load of hoses connected to it, it will be underneath the fuel tank. probably about the size of your fist. its one of those small gold screws you need to turn mate, just turn it small amounts and slowly to make sure you have the right thing
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KLX 300r

[biz1980]

ahh i was lookin at the right thing ye i just looked at the manual part and where it shows the adjust screw thats where i have 3 screws 2 above an 1 below...im guessin the 1 on its own will be the one i need to adjust!....

if you hear a loud bang that'll be my engine hehe

[clancy]

it will probably be at a horizontal angle on its own
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KLX 300r

[biz1980]

NICE JOB IT WAS THE BOTTOM OF THE 3 SCREWS THANK YOU EVERYONE FOR YOUR INPUT ON THIS YOU ALL BEEN A GREAT HELP!

[clancy]

no worrys
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KLX 300r