hey guys,
i need your oppionion/ advise..Just picked up this honda and it was needing new rings on it..so i went ahead and did that, but now i cant get it to fire, checked the plug good spark, pulled the carb checked and quick cleaned it, it just sits there and turns over like the switch is off no fire what so ever..
i did use the old metal gaskets as they were in top condition..
and i went back through thinking i had an air leak i tighted one of the 2 lower jugs bolt to tight and.... yep i broke it..Any ideas and where to go from here? i would like to resove why its not starting before tearing it back down and extracting the bolt.. any ideas what im doing wrong or not checking? i dont have any way of checking compression.. i did take the time to make sure all rings were the right side up and spaced 120degreesat least apart??
thanks

 

Did you get the timing chain back in the right spot? It could be 180 degrees out.

 

also check to make sure the timming chain didnt slip off the bottom crank other wise you wont understand why its not starting...if the timming chain spins freely its not connected at the bottom..

 

i guess you lost me there.I didnt undue any timing chain..I took the jug off and put new rings on..i didnt mess with any timing chain..Fill me in here you through me for a loop..But it does act like the timings out or somthing..I went back took it all apart and got the broken head screw out, i noticed oil all over the inside of the piston, gaskets, etc..

 

i have to admit its been almost 20 yrs since i did this type of work. the mind and confidence is not like it use to be..
im not sure weather to start over, get all new gasket set and order a wisco piston kit, get it machined or what..
I'm planning on selling it once im done so i really dont want to do that, but i dont want to sell it running less than 100%. so im torn. i already have 2 other ex's so i have to thin out..

give me some more input if u will..this timing thing might be the issue....not sure.. give me some ideas before i put it back together as is one more time. otherwise, im going to order a kit..How abput the valve setting? could that be the issue? i adjusted it a bit before starting it (after new rings installed). set it to .005 but i could see the timimg mark so i may set it to the wrong stroke? after 10-20 tries at starting it i put it back..
along the way it would pop on either the up or down stroke i couldnt tell listening, but i put it back and it was like no gas was getting to the carb...yes i even took the carb off and lightly clean it and checked the fitting once connected...
what stock setting should the carb be at? i think it only has one? 3/4 out or 1-1/2out ? looking for anythingat this point..
i will let it set a few days to ponder/ ideas..thanks guys..
Let me ask this..if you have an air leak aroung the jug could it cause this?

 

i have a 300ex and it maybe a little different,, you should pick up a service manual it will help alot and step by step on disassembly and once fixed the manual may or may not go with the quad...i strongly recommend you grab one it will give more of an idea on whats going on inside..

 

Going by my bad memory, I'm not sure how you can take the jug off without noticing the timing chain. From the top, you have the valve cover, then the head, then the jug. You will see the chain when you take the valve cover off. You can't take the head off without removing the chain. It is possible that the chain fell into the crank, in which case you have to tear the motor down to get it out. I have a Honda service manual for a Recon which is the same motor. If you can wait a day, I can send you the pages you need in an email. The manual is at home and I am at work.

 

sure that would be great..but i must admit i saw no chain..are you sure your talking about a honda 250ex? i sure hope i didnt drop it down inside..you would have sure thought i would have noticed something like that!! i should have waited until the manual arrived..im also doing stupid **** like this and then get myself into a pickle..

 

Well, I never had my Recon motor apart but I have had many 250's and 300's apart. I certainly hope I am wrong about the chain. Here's something simple to try to see if the cam chain is still attached. Take the spark plug out and put your hand over the muffler while you crank it. If you feel air, then you are good. This indicates that the valves are operating, which means the chain is attached. Whether they are operating at the right TIME is another issue. That's where we need to check the manual.

 

this has push rods to actuate the valves..