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Self diagnostics Hey, I have a 74 honda cb360 that doesn't want to start. It has spark, fuel is getting to the carbs for sure and will start when I give it a spray with starting fluid. I cleaned the carbs myself and brought them into a mechanic so they should be all good to go. Im at a loss of what to do/check next. Any help is much appreciated

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First thing would be to cheak the compression,has the bike been stood for a long time, if so the piston rings can become seized into the pistons and although it my appear to run on starter fluid sprayed into the carbs its not really running just firing.
If the compression is low then you will need to remove the head and barrel the determine why there is no compression.
I had the same problem on a gsx550 turned out to be frozen ring, removed carefully cleaned well and replaced and it ran ok.

Posted on May 03, 2013

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Posted on Jan 02, 2017

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SOURCE: My 1974 Yamaha 250 Enduro wont start I have

you need good compression ( at least 90 psi , kicking it with the throttle open) , good crankshaft seals for sucking the fuel/air into the botton end, proper point gap and timing set for spark ( spark should be big and fat,if not the source coil is weak,, this is a flywheel magnito ignition and it needs no battery to fire the plug) if you clean the carb, make sure you also clean the choke pickup tube or it wont choke. also make sure you have the slide installed in the right direction ( not backwards and the idle is not set too high at first...compression/****-good spark at the right time-proper fuel/air ratio and it will run

Posted on Aug 17, 2010

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SOURCE: 1995 honda cbr f3 wont start

I would think about investing in a carb re-build kit.

Posted on Dec 22, 2008

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SOURCE: I have a 98 honda foutrax 300 4 wheeler it started

remove all of the old fuel using a siphon bulb and hose. Put in brand new fuel and make sure the line from the tank to the carb. is flowing gas. if not clean or replace the fuel line

Posted on Jun 17, 2009

  • 881 Answers

SOURCE: 74 cb200 wont start

1ST CHECK THE PLUG IS IT DRY AND CLEAN IF ANY DOUBTS REPLACE IT.as spark plug might work good out but under pressure its a bit differant . or check the valve clearance on Exhaust'Ihad the same trouble with my Triumph 5oo years ago

Posted on Oct 06, 2009

Testimonial: "thanks for the reply ill try and let you know how it goes"

SOURCE: i have problem starting my xr 250(enduro)getting

recheck the carbuator...blow compressed air to its jets.Check the float level.Try fitting a new spark plug.
Hope this helps!

Posted on Oct 13, 2009

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