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Discussion Starter · #1 ·
I am really in a pickle. I have an 02 recon ES completely stock
it started to make noises up top like its was the valves. and it stoped running
turned out the exhaust valve was to tight.
I adjusted the valves then it wouldnt start.
I cleaned the card and the idle jet was clogged and thing always acted like
it falls on its face before i cleaned it
now the damn thing wont run unless i put my hand over the carb hole with the coke all the way on, and it smokes really bad like a blueish black color. and after i take my hand off sometimes it squirts gas out the carb.
Stock jets adjusted fuel/air screw and nothing in or out
cleaned vent hoses and put them in there original places
new filter good compression new plug

Any help or suggestions would be awesome Thanks :hail:
 

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Welcome to the forums. It sounds like it's flooding if you're getting black smoke. Maybe your float valve is stuck open.
 

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I am really in a pickle. I have an 02 recon ES completely stock
it started to make noises up top like its was the valves. and it stoped running
turned out the exhaust valve was to tight.
I adjusted the valves then it wouldnt start.
I cleaned the card and the idle jet was clogged and thing always acted like
it falls on its face before i cleaned it
now the damn thing wont run unless i put my hand over the carb hole with the coke all the way on, and it smokes really bad like a blueish black color. and after i take my hand off sometimes it squirts gas out the carb.
Stock jets adjusted fuel/air screw and nothing in or out
cleaned vent hoses and put them in there original places
new filter good compression new plug

Any help or suggestions would be awesome Thanks :hail:
most times..valves won't make a nosie..unless they are loose..after you adjusted the valve..and it wouldn't start..sounds to me they aren't adjusted right..as for it won't run..unless your hand is covering the carb..tells me your valves aren't timmed..or adjusted right..i know this sounds stupid..but..if the valves aren't in time..then it won't draw gas into the top end right...as for your carb acting stupid..take it back off..give it a very good cleaning..worst case..get a oem carb rebuild kit..and if your tight on money..purchase a after market rebuild kit...you said your got good compression..what was it when you tested it ?..or did you just use the old finger test ?.
 

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Discussion Starter · #4 ·
that makes perfect sense, i adjusted the valves .005 on both, I figured it had good compression because the pull rope is harder then hell to pull (I can kick start my yz 250 with my hand) both valves are closed on the compression stroke so im positive its timed right but is there a possibility it is the timing chain
 

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that makes perfect sense, i adjusted the valves .005 on both, I figured it had good compression because the pull rope is harder then hell to pull (I can kick start my yz 250 with my hand) both valves are closed on the compression stroke so im positive its timed right but is there a possibility it is the timing chain
take the rocker box back off..take the inspection cap off the flywheel side..take the spark plug out..remove the flywheel cover cap...with a socket..i think they are 17mm..turn the fly wheel until you see the T mark line up on the flywheel...once thats lined up..look at the timming chain cam sprocket..it has either a punch mark on the outter side or 2 lines..they should be facing horizonal to the edge of the head -- o -- < --- like this..after it looks like that..your cam lobes should be facing down..if they aren't..means you jumped time...if all that is ok..you could have bent a valve..in order to check that..you will need to pull the head off..turn the head upside down with the valves facing you..pour some gas down into the valves..if you have a bent valve..it will leak past the valves.... < this is the easy way to check for bent valves without taking them out of the head >...if they leak gas through..you will need to take them out and replace them..you can not straighten them by any means. good luck..keep us posted.
 

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that makes perfect sense, i adjusted the valves .005 on both, I figured it had good compression because the pull rope is harder then hell to pull (I can kick start my yz 250 with my hand) both valves are closed on the compression stroke so im positive its timed right but is there a possibility it is the timing chain
take the rocker box back off..take the inspection cap off the flywheel side..take the spark plug out..remove the flywheel cover cap...with a socket..i think they are 17mm..turn the fly wheel until you see the T mark line up on the flywheel...once thats lined up..look at the timming chain cam sprocket..it has either a punch mark on the outter side or 2 lines..they should be facing horizonal to the edge of the head -- o -- < --- like this..after it looks like that..your cam lobes should be facing down..if they aren't..means you jumped time...if all that is ok..you could have bent a valve..in order to check that..you will need to pull the head off..turn the head upside down with the valves facing you..pour some gas down into the valves..if you have a bent valve..it will leak past the valves.... < this is the easy way to check for bent valves without taking them out of the head >...if they leak gas through..you will need to take them out and replace them..you can not straighten them by any means. good luck..keep us posted.
The recon doesn't have an overhead cam. The cam is in the bottom of the engine and it has push rods running up through the engine to the rockers. I believe Honda changed all their engines to this design when they changed to the longitudinally mounted engine.
 

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that makes perfect sense, i adjusted the valves .005 on both, I figured it had good compression because the pull rope is harder then hell to pull (I can kick start my yz 250 with my hand) both valves are closed on the compression stroke so im positive its timed right but is there a possibility it is the timing chain
take the rocker box back off..take the inspection cap off the flywheel side..take the spark plug out..remove the flywheel cover cap...with a socket..i think they are 17mm..turn the fly wheel until you see the T mark line up on the flywheel...once thats lined up..look at the timming chain cam sprocket..it has either a punch mark on the outter side or 2 lines..they should be facing horizonal to the edge of the head -- o -- < --- like this..after it looks like that..your cam lobes should be facing down..if they aren't..means you jumped time...if all that is ok..you could have bent a valve..in order to check that..you will need to pull the head off..turn the head upside down with the valves facing you..pour some gas down into the valves..if you have a bent valve..it will leak past the valves.... < this is the easy way to check for bent valves without taking them out of the head >...if they leak gas through..you will need to take them out and replace them..you can not straighten them by any means. good luck..keep us posted.
The recon doesn't have an overhead cam. The cam is in the bottom of the engine and it has push rods running up through the engine to the rockers. I believe Honda changed all their engines to this design when they changed to the longitudinally mounted engine.
lol..figures..they change the simple stuff..and make it worse..give me old school engines any day.
 

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take the rocker box back off..take the inspection cap off the flywheel side..take the spark plug out..remove the flywheel cover cap...with a socket..i think they are 17mm..turn the fly wheel until you see the T mark line up on the flywheel...once thats lined up..look at the timming chain cam sprocket..it has either a punch mark on the outter side or 2 lines..they should be facing horizonal to the edge of the head -- o -- < --- like this..after it looks like that..your cam lobes should be facing down..if they aren't..means you jumped time...if all that is ok..you could have bent a valve..in order to check that..you will need to pull the head off..turn the head upside down with the valves facing you..pour some gas down into the valves..if you have a bent valve..it will leak past the valves.... < this is the easy way to check for bent valves without taking them out of the head >...if they leak gas through..you will need to take them out and replace them..you can not straighten them by any means. good luck..keep us posted.
The recon doesn't have an overhead cam. The cam is in the bottom of the engine and it has push rods running up through the engine to the rockers. I believe Honda changed all their engines to this design when they changed to the longitudinally mounted engine.
lol..figures..they change the simple stuff..and make it worse..give me old school engines any day.
The only good thing about it is that it makes it a lot easier to change the piston and rings, because you don't have to mess with the timing.
 

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The recon doesn't have an overhead cam. The cam is in the bottom of the engine and it has push rods running up through the engine to the rockers. I believe Honda changed all their engines to this design when they changed to the longitudinally mounted engine.
lol..figures..they change the simple stuff..and make it worse..give me old school engines any day.
The only good thing about it is that it makes it a lot easier to change the piston and rings, because you don't have to mess with the timing.
what happends when the cam goes out ??..you have to split the case in order to replace the cam ??..sheshh..if thats the case..i'll never own a new model..lol.
 

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lol..figures..they change the simple stuff..and make it worse..give me old school engines any day.
The only good thing about it is that it makes it a lot easier to change the piston and rings, because you don't have to mess with the timing.
what happends when the cam goes out ??..you have to split the case in order to replace the cam ??..sheshh..if thats the case..i'll never own a new model..lol.
No, you don't have to split the case. On the Foreman, you take the side cover off where the clutches are and remove both clutches and then remove the chain and unbolt the cam sprocket and then unbolt the cam retaining bolt and the pull the cam out. On the Rancher, you take the flywheel cover off and take the flywheel off and the cam pulls out that side. I'm not sure which side the cam comes out of on the Recon.
 

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The only good thing about it is that it makes it a lot easier to change the piston and rings, because you don't have to mess with the timing.
what happends when the cam goes out ??..you have to split the case in order to replace the cam ??..sheshh..if thats the case..i'll never own a new model..lol.
No, you don't have to split the case. You take the side cover off where the clutches are and remove the chain and unbolt the cam sprocket and then unbolt the cam retaining bolt and the pull the cam out.
which means..you drain the oil in order to remove the cam..nope..give me old school models any day.
 

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what happends when the cam goes out ??..you have to split the case in order to replace the cam ??..sheshh..if thats the case..i'll never own a new model..lol.
No, you don't have to split the case. You take the side cover off where the clutches are and remove the chain and unbolt the cam sprocket and then unbolt the cam retaining bolt and the pull the cam out.
which means..you drain the oil in order to remove the cam..nope..give me old school models any day.
With those longitudinally mounted engines, it's a lot harder to get to the engine to work on it. For example, taking the clutch cover off. You just about have to take the engine off to work on them, where as on the older ones you can do just about anything to them with the engine still in the frame. It's real easy to put piston and rings or head on one, though, without pulling the engine.
 

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Discussion Starter · #13 ·
DAmn i have been busy working on a cr 250(love 2ts) but the way u guys are talking this is going to be a pain in the butt I keep u all posted thx for the imput
 

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If you know for sure that you adjusted your valves right, then I would say you just have a carb problem.
 
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