CRF50F Help Please?

MattCA · 05-30-2008, 12:34 PM

My friend is giving me $50 to sell his 50 for him. Anyways, I got it to run but there are some problems. First of all, it doesn't idle with out giving it gas. Which screw is the idle screw. Which are the others? Thats the main thing I need to fix. The second problem is, for some reason the choke does the opposite. The engine wont start or run with the choke on but will start and run with it off. Thanks for the help.

EDIT: Nevermind. Fixed the idle. How do I adjust the air screw to reduce the bog off the idle?

turtlemann14 · 05-30-2008, 02:17 PM

turn it out a little to make it run a little leaner
if you turn it to much it will loose power and run a little hotter

Hardtail · 05-30-2008, 09:42 PM

Try 1/4 turn at a time and have extra plugs.

MattCA · 06-12-2008, 12:47 PM

Ive noticed when I turn the middle screw (below the idle, air screw i belive) all the way in it doesnt bog. How come? Where is a safe setting?

05-30-2008, 12:34 PM	#1 (permalink)
MattCA C Rider Join Date: Oct 2007 Posts: 66	CRF50F Help Please? My friend is giving me $50 to sell his 50 for him. Anyways, I got it to run but there are some problems. First of all, it doesn't idle with out giving it gas. Which screw is the idle screw. Which are the others? Thats the main thing I need to fix. The second problem is, for some reason the choke does the opposite. The engine wont start or run with the choke on but will start and run with it off. Thanks for the help. EDIT: Nevermind. Fixed the idle. How do I adjust the air screw to reduce the bog off the idle? Last edited by MattCA; 05-30-2008 at 01:29 PM.

05-30-2008, 02:17 PM	#2 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,443	turn it out a little to make it run a little leaner if you turn it to much it will loose power and run a little hotter __________________ If it does not move at first, get a bigger hammer!! Myspace Kawasaki z1 900 1973 rake extended, big bore block 1127cc, carbs, straight pipe exhaust, coils, and new paint job Kawasaki klx250 1979 custom fiberglass silencer+ Honda xr200r 1985 stock = Dakaw Dk250 2008

05-30-2008, 09:42 PM	#3 (permalink)
Hardtail Pro Mototips Member Join Date: Dec 2006 Location: Southeast V.A. Posts: 1,363	Try 1/4 turn at a time and have extra plugs. __________________ I love the smell of gasoline!! I woke up.....life is good!!!

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06-12-2008, 12:47 PM	#4 (permalink)
MattCA C Rider Join Date: Oct 2007 Posts: 66	Ive noticed when I turn the middle screw (below the idle, air screw i belive) all the way in it doesnt bog. How come? Where is a safe setting?

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