Still having issues

[beck125]

Just put a 440 kit in my trx, my jetting is at 172 and 42, with k&n and yosh slip on. It is timed corectly this i know, and the valves are new and set fine, and the clearence is set to where it should allow her to start but when i crank on it, it fires once and then dies, and then just cranks ... there is spark, ... and compression, im thinking it is a fuel problem but what should i do to start off with ? oh and the needle is one up from factory...

[honda400ex2003]

well i would go to a 180, 42 pilot, 2.5 turns out on the f/a and put the needle back on the 3rd notch and see how it does then.

otherwise check for leaks and get a new plug also.

what kind of gas is in it? 93 octane?

steve

[beck125]

its 91 pump, i dont have access to high octane, but i was running my 416 with 91 and it was rich as shish, but ok, it seems like a crazy carb problem to me. i will give her a shot

[honda400ex2003]

you wont be ending up at a 172 most likely with a 440 in there thats for sure. maybe with a 450 carb you will but still doubtful at best.

i have only seen a couple 440s run mid 170s for jets.

try the f/a at 2.25 out with the 42 in there instead.

are you using the choke?

steve

[beck125]

Ok the 42 and the 180 or 190? Kinda confused on your post there... so it won't be above 170? I pulled the plug and there's white burns on it so its not getting enough fuel?

[honda400ex2003]

180 would be my guess to start off with. Steve

[JOHNDOE83]

MY 440 used a 200 main jet with a stock carb and a 42 pilot.

My 450r carb uses a 220 main and 50 pilot.

Always starts with no choke right away and runs down high modded 450s at the drag strip.

[beck125]

ok well this did nothing with the 180, and i decided to take it back down to the cylinder to check and see if anything is broke or wrong, and i noticed before i pulled the chain, it was out of time and i timed it right ? what would cause it to jump timing? the chain tension-er? at this point im going to take it into the dealer, i am sick of fighting it

[CJM]

Stretched chain, bad tensioner. You can check the tensioner yourself if you remove it and put a small screwdriver in there and it should spring back up-if not its shot.

[beck125]

as in, into the tension er? or..?

[CJM]

yea, remove the tensioner and theres a screw cap over it. Remove the screw cap and put a small flathead screwdriver in there and turn the tensioner- should spring back-if not its bad.

[beck125]

Ok then its good the push rod springs back out..