Edelbrock XR250R user manual

INSTRUCTION SUPPLEMENT FOR
1996-2004 HONDA XR250R
Removing stock carburetor and cables
1. Remove seat and gas tank. Make sure fuel petcock is in “off” position.
3. Remove stock carburetor and stock throttle housing.
4. Stuff a dry, clean rag into the intake manifold to ke ep debris from en tering engine.
NOTE: It may be easier to remove sub­frame prior to installation.
Preparing Bike for Carburetor
installation
Once stock carb has been removed, remove all crank case breather lines. The steel breather barb on the crank case needs too be rotated clockwise until it points towards the left frame down tube. This is needed for carb clearance. It can by done by simply using a pair of standard pliers. See figure 1.
Figure 1.
Installing the Edelbrock Carburetor
and Throttle Cables
1. Install the throttle cables into the sup plied throttle housing and place onto clean handlebar end.
2. Remove the rubber carburetor alignment tabs from the manifold using a razor blade or sharp cutters. This sho uld be done with the rag left in the manifold. Be very careful not to
damage the manifold or your hands while doing this!!
3. Remove the h ex pipe plug from the carb cap using a 11mm or 7/16 wrench.
Do not discard plug, as it will be needed later. Install the metering
adjustment tool included in the hardware kit. Do not over-tighten as damage may occur to cap.
4. Install provided fuel line onto fuel inlet banjo and secure with pinch clamp.
5. Place Edelbrock carburetor into manifold. Do not tighten clamp yet.
6. Remove the cable bracket en d from cable bracket using #2 phillips.
7. Install pull cable (see Figure 2) end into the 4:00 position of the cable wheel and the return cable into the 1:00 position. Secure ca bles into cable bracket by replacing end piece an d phillips screw. See figure 3.
Figure 2.
Figure 3.
8. Align carburetor as close to vertical
as possible and tighten manifold clamp.
Pull Cable
9. Adjust pull cable until wide-open throttle is achieved. Adjust return cable to take up the slack. Note:
When throttle cables are adjusted properly, there should be approx. 1/8” of free play in the throttle.
10. After throttle cables have been adjusted the handle bars should be rotated from full right stop to full left stop while opening and closing throttle to ensure smooth operation. Also check to make sure the cables do not catch or bind on anything, i.e., hand guards, stabilizers.
11. Secure clamp around air boot onto back of carburetor.
12. Install remote idle cable into threaded tab on top of carburetor. Refer to main instruction for remote idle cable installation and adjustment.
13. Disconnect the crank vent lines from the stock plenum (some models were not equipped with a plenum. Instead, they had a tee similar to the one provided in the kit. If your motorcycle has a tee from the factory, disregard this and go to step 14.) and replace it with the provided tee fitting. See figure
4.
Figure 4.
14. Reinstall crank vent lines to stock locations.
15. Install fuel tank an d connect fuel line to petcock an d secure with remaining pinch clamp. Turn fuel on and check for leaks.
16. Ope n throttle 3-5 times to prime accelerator pump. Do not open
throttle any more than 5 times as this may flood engine!!
17. Once pump is primed, get motor to TDC and kick through without opening throttle. If Motor will not fire with a few kicks, open idle cable ½ turn and repeat starting process.
NOTE: If flooding occurs, slowly open throttle to wide open and hold. With throttle still open, hold decompression lever and kick motor through 5-10 times. Release throttle and decompression lever and proceed with normal starting procedure.
For any questions regarding tuning or installation of Edelbrock products, please call our toll free tech line M-F 8:00am-12: 30pm, 1:30pm-5:00pm PST. 877-888-7504 ext.2.
Edelbrock #3116 XR250R Carburetor specifications
Bore Size: 30mm wide X 32mm Tall
Needle: 15E @ 10 clicks
Accelerator Pump Bypass: 1.5 turns out.
Alternate Needles: 13E, 17E
Replacement Throttle Cables: #9337
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