Question about 1988 Honda CBR 1000 F

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1988 hurricane wont start cold

Wont start cold. If I spray starting fluid into intake it starts. After it warms up it will start within the first 15 minutes after I turn it off. After 15 minutes it wont start. Spark plugs are firing and new. When I move the choke while holding the starter the sound of the engine changes but no fire at all.

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Instructions

    • 1 Lift the CBR onto its center stand. Unlock the seat latch with the ignition key and remove the seat. Remove the clip screws from the top portion of both seat rail covers, positioned below the fuel tank and the seat, using a Phillips screwdriver. Pull the seat rail covers away from the motorcycle's frame.
    • 2 Remove both bolts from the front of the fuel tank, using a socket wrench and a 10 mm socket. Lift the tank up and prop it open using the support rod on the motorcycle's frame. Reach under the tank and unplug the fuel pump's wiring connector and all three hoses from the bottom of the tank. Take note of hoses' locations before removing them for reinstallation purposes. Pull the hairpin clip out from the support rod's base. Unscrew the pivot bolt from the base of the fuel tank, using a 10 mm socket. Lift the fuel tank off of the motorcycle.

    • 3 Unscrew the air box's mounting bolt from the frame's right seat rail, using a 10 mm socket. Loosen the clamps securing the air box's flanges to the carburetors' inlets, using a Phillips screwdriver. Pull the air box towards the rear of the motorcycle to separate its flanges from the carburetors.
    • 4 Loosen the clamps securing the carburetors to the motor's intake manifolds, using a Phillips screwdriver. Pull the carburetors off of the motor and out through the left side of the motorcycle's frame. The carburetors will still be attached to the motorcycle by its throttle and choke cables. Loosen the choke and throttle cables' lock nuts, using a 10 mm wrench. Remove the cables.
    • 5 Hold the carburetors over a large container. Unscrew the drain screws on the side of each carburetor's float bowl, positioned at the very bottom of the carburetor, using a flat-head screwdriver. Allow the fuel trapped within the float bowl to drain completely, then tighten the drain screws.
    • 6 Flip the carburetor over, with the float bowls up, and place it on a clear work space. Unscrew the bolts from the float bowls, using a Phillips screwdriver, then pull the float bowls and their gaskets away from the carburetors.
    • 7 Unscrew the pilot jet from each carburetor, using a flat-head screwdriver. The pilot jet is placed to the left (with the carburetor facing you) of the main jet in the center of the carburetor. Screw a new pilot jet into place with a flat-head screwdriver.
    • 8 Reinstall the float bowls and their gaskets onto the carburetors. Tighten the float bowls' screws with a Phillips screwdriver. Reattach the throttle and clutch cables to the carburetors and tighten the cables' lock nuts with a 10 mm wrench. Slide the carburetors through the left side of the frame. Push the carburetors into the motor's intake manifolds. Tighten the intake manifolds' clamps with a Phillips screwdriver.
    • 9 Pull the air box against the carburetors and push the air box's flanges over the carburetors' inlets. Tighten the flanges' clamps with a Phillips screwdriver. Screw the air box's mounting bolt onto the frame's right seat rail, using a 10 mm socket.
    • 10 Lay the fuel tank onto the motorcycle's frame. Insert the tank's pivot bolt through the hinge at the base of the tank. Screw the pivot bolt's nut into place, using a 10 mm socket. Lift the tank up and reattach the tank support rod to the motorcycle's frame. Insert the hairpin clip into the support rod's base. Prop the tank up on the support rod. Plug the wiring connector into the fuel pump and reconnect all three hoses onto the bottom of the tank. Screw both mounting bolts onto the front of the fuel tank, using a 10 mm socket.
    • 11 Mount the seat rail covers onto the motorcycle's frame. Insert and tighten the covers' clip screws, using a Phillips screwdriver. Lay the seat onto the seat rails, then press the rear of the seat down until the seat latch locks into place.

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

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  • 126 Answers

SOURCE: 1988 GL 1500 Starting Problems

petcock is #4 in this pic:

http://partsfinder.onlinemicrofiche.com/atlanticcycleandpower/Honda_OEM/HondaMC.asp?Type=18&A=58&B=57&Action=O

you should be able to switch between ON and RESERVE with this lever.

sure sounds like its starving for fuel as time went on so something is gumming up,

i would check to see if the fuel filter is clogged (#2 in the above pic) and if you can reach it, disconnect the output of the filter and see how it flows. if its a good stream, then focus on the carbs. if it doesn't, then replace it.

carbs may have gum & tarnish in them. you'll have to remove them and give it a thorough cleaning. if you're not comfortable doing any of this, then take it to a dealer or independant shop. if you're ok with removing the carbs, but not comfortable cleaning them internally, then take them to a shop that can do this.

if you can get them off and want to see just how bad they are, then remove the bowls (#5 in this pic):

http://partsfinder.onlinemicrofiche.com/atlanticcycleandpower/Honda_OEM/HondaMC.asp?Type=18&A=58&B=33&Action=O

and see how bad the gum looks. it will smell like varnish and look either very sticky or very hard. be careful removing the bowls to keep the gasket in one piece. it it tears, then you'll need a new one from honda.

pay particular attention to the jets (#19 & #20 in the pic) as these little holes plug up almost immediately once gas starts going bad. you can remove the main jet and slow jet and give them a cleaning with carb cleaner and a bread tie (with the plastic removed, using it like a pipe cleaner). they are brass so be sure not to deform them with tools.

going any further will take patiences and a little skill, but you can try the above at a minimum and put it back on to see if it will run.

good luck.

pic of your carbs as an assembly on the bike:
http://partsfinder.onlinemicrofiche.com/atlanticcycleandpower/Honda_OEM/HondaMC.asp?Type=18&A=58&B=32&Action=O

Posted on Feb 01, 2009

  • 6 Answers

SOURCE: honda cbr 600 wont start

hi, each lead has the specific number on it. if you do this correctly then they genrally give you an idea to where the sit in the coils( the way they bend :-) ) also i believe the coils are better off been attached to the frame once you are sure leads are in corect order and possitioned correctly in the coils.i just presumed the coils neaded earthing. make sure battery is pleny charged as a bad battery can just hinder. it is also very easy to flood the bike so just check the plugs again. if they are unusually wet then dry them off and try again . otherwise maybe try cleaning all electics.

hope this somehow helped
gavin barraclough

Posted on Apr 26, 2009

  • 2 Answers

SOURCE: honda VF750s wont start when hot

Sounds like valve timing is off,check your tappet settings,allways gets worse when hot.

Posted on Jun 02, 2009

hermit58
  • 33 Answers

SOURCE: Wont start sounds like it doesn't even try to fire

Check the rectifier.

Posted on Jul 12, 2009

  • 1 Answer

SOURCE: my 95 f3 will crank but wont start. everything was

  1. my cbr f3 will start up but but wont stay running for more than 20 mins. just put a new battery and rectifier regulator. can some one help me out

Posted on Jan 17, 2010

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