bout to destroy my 225dx- still having problems

[Georgia Boy 666]

seems like when i think i just about to have it, it goes back to running crappy! i have just rebuilt the carburetor- all jets and everything except the float- im still trying to find one that don't cost 35 bucks, it seems to idle fine, but after it has warmed up i will put it in gear, and the idle shoots waaaaay up, and when i try to give it gas, it acts like it is going to flood- just the slightest bit of gas- it wants to die. also the header or exhaust right next to engine gets red from soo much heat " i have adjusted the idle/mix back to factory settings- i have cleaned the fuel filter on the petcock- there wasnt anything on it- but i didnt hurt.... and 1 more stupid thing lol i just bought a battery for it, and seems like there isnt enough juice to get the engine to fire- it turns over fine, mabe just not fast enough...... i just put a new airfilter on it and am wondering if that is why it is acting like it is starving for gas... i dont know, and am about to give up :wondering

[Georgia Boy 666]

i did have it running great a little bit ago, the carb gasket was pouring gas, and the petcock was pouring gas, when i replaced the gaskets- is when i starting having my idle problems.

[Cert88]

Did this ever run good since you got it?

Does it have an airbox? with lid? or just a clamp on air filter?

If you take the fuel line off the carb and turn on the petcock does fuel flow out fast enough?

[yamaha_ripper98]

mine did this from cracked intake boot but never leaked gas from petcock or carb

[Georgia Boy 666]

well i sprayed the intake boot with carb cleaner a while ago, and it did idle up- but found out it was the o-ring between the boot and carb...

and i have only had this bike for a couple months- so i dont really have any history with it- or how it used to run i mean... it has an airbox, and the airfilter kinda plugs the hole that it fits in- lol kinda hard to explain- but it doesnt really attach, it just gets pushed into place, then a cover on the back of the airbox

[daniel_250r]

check the timing maybe its off

[yamaha_ripper98]

yea that is the way they are on 225's its like a little door with fins on the back to hold filter in and up

[night4creeper]

from your description I think it is running too lean. you say the header gets red hot and then you say it wants idle up when you put it in gear i.e. put a small load on it. then you say it wants to die when you crack the throttle. make sure you have a good amount of fuel flowing out of the tank and there is no blockage. you said you rebuilt the carb did you make absolutely sure that every passage in it was clear and not clogged? also what happens when if you choke it when you put it in gear and try to crack the throttle? does it help or get worse?

[yamaha_ripper98]

check the filters on the petcock my dad got the 83 225 i have new and it sat for years and both on and reserve filters were gummy and didnt alow enough fuel into carb fast enough i say lean also glowin headers are never good make sure valves didnt tighten up from heat

[Georgia Boy 666]

i have not checked the timing, i am not too sure how to do that- i really wish they had put points and condenser on it instead of what it has for timing.

but yes i checked the carb for any foreign trash, it is good, i did check the petcock, and those were super clean. and i did choke while it was running- it would bring the idle down, but then got to the point where it started to surge/bog down...
i should try to adjust the fuel mix so it dont run soo hot, but i would like to do that after i have got the whole high idle deal fixed.

[Georgia Boy 666]

i will try running it without the airfilter, and see what happends... i am just baffled about this :confused:

[Georgia Boy 666]

oh yeh.. something i forgot to say in the first post, when i first brought it home- i started it right up.. it was really running crappy- almost sounded like the timing was waaay off, kinda made a knocking sound, and made a hissing sound each time it knocked- that knocking sound would shut the engine off if it just idled and i did not give it throttle. i then checked the gas- and it smelt very old, the oil was old- smelled like deisal fuel... so i replaced all that stuff- the next time i ran it, the knock and hiss kinda went away. but still does it now and then... soo i dont know lol

[Georgia Boy 666]

i have made an adjustment on the float, but it didnt seem to do anything... would any one reccomend a new float?

[crowballs]

You know when your float is out of adjustment when gas won't stop coming out of the drain, that's when it's too high, not sure what happens when it's too low. I just kept bending the tab a tiny bit until she stopped leaking. The timing is super easy on these guys. The timing check hole whatever it's called is next to the pull crank, it's that huge flathead screw, remove that and your timing/cam cover off the head, just two screws. The mark on the sprocket should match up with the large mark on the head, you should be able to make that out from the "timing marks" along the top. When that is lined up, look in the timing hole. There should be a "T" showing. If those two aren't lined up, then the timing is off, readjust the chain til it's lined up then your timing is fixed. Also, mine would do the same thing with spitting and sputtering, any debris in the carby and that could be part of the cause. On the idle issue, is your choke valve in the carby operating freely, or is it sticking? That was another issue I had, just had to work it till it freed up, haven't had the high idle problem since.

[Georgia Boy 666]

well i have to pull the choke pretty hard to get it to pull, of course i have ordered a new cable end. but regardless it is hard to pull. thanks for the info!! i will have to check out my timing probably tommorow- it will give me something to do while im sick lol

[userj8670]

from your description I think it is running too lean. you say the header gets red hot and then you say it wants idle up when you put it in gear i.e. put a small load on it. then you say it wants to die when you crack the throttle. make sure you have a good amount of fuel flowing out of the tank and there is no blockage. you said you rebuilt the carb did you make absolutely sure that every passage in it was clear and not clogged? also what happens when if you choke it when you put it in gear and try to crack the throttle? does it help or get worse?


I agree!!! Just had the same problem on an old snowblower. If the float is not an issue then just adjust the air/mix screw. Normal on most engine is 2-2.5 turns out

[crowballs]

Where you able to get her fixed? Curious what the actual problem was.

[Frankencelery]

Me too. My DX starts and runs good, but seems to run out of gas at the top end. Probably a float issue for me. I haven't torn into it yet.