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post #1 of 33 (permalink) Old 07-08-2006, 03:11 PM Thread Starter
 
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Need Mechanic Advice

1996 CBR600. STARTER, BATTERY AND SELENOID ARE GOOD. WHEN I ATTEMPT TO START, IT DOESNT CRANK. THEN I OPENNED UP THE SIDE TIMING COVER AND TURN THE ENGINE MANUALLY ALMOST ONE TURN, ( THATS ALL I CAN TURN MANUALLY). ITS A LITTLE LESS THEN A COMPLETE TURN, THEN I TRY TO START, IT CRANKS TILL THE OLD POINT, WHERE IT USED TO BE THEN STOPS, IT DOESNT CRANK ANYMORE, GETS STUCK I THINK. SOMETHING IS HOLDING IT FROM TURNING I GUESS, ANY ADVICE BEFORE I TAKE THE WHOLE ENGINE DOWN? I REALLY APPRECIATE ANY HELP. THANKS . PLEASE E-MAIL [email protected]

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post #2 of 33 (permalink) Old 07-08-2006, 03:57 PM
 
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Hydrolock? Take out all four sparkplugs. Keep them in order. Number one cylinder plug (far left) is probably wet with gas. With all the sparkplugs out, crank the engine. If it cranks and gas is forced out number one sparkplug hole, you have found the problem. Buy new plugs, new float valves and seats, a rebuild kit for the leaking petcock, completely clean the carbs, and you're set. If you take out the plugs and it still won't crank, then you have troubles.
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post #3 of 33 (permalink) Old 07-08-2006, 04:12 PM
 
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check that if it aint, i fear its yur bottom end is fubar possibly
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post #4 of 33 (permalink) Old 07-08-2006, 04:17 PM Thread Starter
 
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whats fubar? sorry i dont know that
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post #5 of 33 (permalink) Old 07-08-2006, 06:13 PM
 
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Quote:
Originally Posted by serkant3
whats fubar? sorry i dont know that
F**ked
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Beyond
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post #6 of 33 (permalink) Old 07-08-2006, 06:24 PM
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I think NW is right but if its worse... you could have thrown a valve as well and that could be wedge inbetween the piston and the head stopping it from cranking which ever piston from moving.




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post #7 of 33 (permalink) Old 07-08-2006, 10:23 PM
 
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When I encountered this failure on my old ZX1000, it was a rod thrown from the crank. I hope your problem is merely hydrolock. total engine teardowns to fix thrown rods suck. trust me I had to do one.
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post #8 of 33 (permalink) Old 07-08-2006, 11:46 PM
 
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what's the history of this bike? was it running fine then it just won't crank one morning? was it sitting for years before being turned on? did you just buy a used bike? did you just service it? did a friend just service it? is it all stock? is it a stunt bike? do you ride wheelies alot? does it have muddy oil? or sluggy coolant? how often was the oil changed? is it modded? if so, does it have an aircleaner?

do tell...

-a|ex
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post #9 of 33 (permalink) Old 07-09-2006, 01:16 AM Thread Starter
 
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i just bought it, the guy said last year someone fixed the timing and a week later a noise came and stopped running, and then sat for a year like that. then i bought it
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post #10 of 33 (permalink) Old 07-09-2006, 02:23 AM
 
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Hate to say it, but your motor needs a teardown going on the description you give. if the timing was fixed, then a noise came, it likely either threw a rod, or a valve hit a piston got bent and now is causing this lack of rotation. might be time to take the bike apart and start preparing the oh crap funds to be spent.
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post #11 of 33 (permalink) Old 07-09-2006, 11:04 AM
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where are you located i have a good motor. PM if interested
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post #12 of 33 (permalink) Old 07-09-2006, 11:37 AM
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Quote:
Originally Posted by King Bob
Hate to say it, but your motor needs a teardown going on the description you give. if the timing was fixed, then a noise came, it likely either threw a rod, or a valve hit a piston got bent and now is causing this lack of rotation. might be time to take the bike apart and start preparing the oh crap funds to be spent.
Yep... just like I said...

Quote:
Originally Posted by rickmancc
where are you located i have a good motor. PM if interested
There ya go... a lot easier fix.




-Chris
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post #13 of 33 (permalink) Old 07-09-2006, 12:05 PM
 
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yur better off pickin that or another motor up, cuz yurs needs to come apart. Jus buy that 1 and part yurs out, prolly break even or make a few bux on the starter, clutch and assorted parts
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post #14 of 33 (permalink) Old 07-09-2006, 12:41 PM
 
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damn, i love doing engine teardowns on bikes. that's when you can blueprint and balance them. rehone the cylinders and reseat valves. Oh, the good ole days.

you just need tools, gasket kit and a shop manual.

-a|ex
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post #15 of 33 (permalink) Old 07-09-2006, 07:53 PM
 
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Quote:
Originally Posted by rickmancc
where are you located i have a good motor. PM if interested
damn rickman, is there anything you DONT have!
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post #16 of 33 (permalink) Old 07-09-2006, 07:55 PM
 
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Quote:
Originally Posted by Back _Marker
damn, i love doing engine teardowns on bikes. that's when you can blueprint and balance them. rehone the cylinders and reseat valves. Oh, the good ole days.

you just need tools, gasket kit and a shop manual.

-a|ex
thats what my sv has in store, im excited, it should be fun. mabye i can pick your brain when the time comes-
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post #17 of 33 (permalink) Old 07-09-2006, 08:32 PM Thread Starter
 
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today i took the engine down , first three spark plugs were so loose, hand tight, when i came to fourth, i was barely able to open it, it was sooo tight, so tight that i realize it hit the valve and piston, made a hole on the piston and ruined the valve :-( luckyly. cylinder and rode were good.
i thank everyone that were trying to help out. if anyone knows an engine or head please let me know caio :-)

Last edited by serkant3; 07-09-2006 at 08:37 PM.
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post #18 of 33 (permalink) Old 07-09-2006, 09:11 PM
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to hear of your problems and I think Rick can help.
Quote:
Originally Posted by serkant3
if anyone knows an engine or head please let me know caio :-)
Quote:
Originally Posted by rickmancc
where are you located i have a good motor. PM if interested

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post #19 of 33 (permalink) Old 07-09-2006, 09:11 PM
 
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not much but
get a clymers manual, there not to bad, its handy to have anyways
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post #20 of 33 (permalink) Old 07-09-2006, 09:25 PM Thread Starter
 
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rick please send the information about the engine, condition, mileage, year, location, price, thank you
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