Weird starting problems??

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AKbash

AKbash

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Anchorage, Alaska
Okay guys I'm having a bit of a problem with my T1000 GT.

She won't start. I can't even hear/feel her fire up at all??

Turned the choke on and still won't fire up...

I installed the Blur quick release air filter about 3 days ago (before I went camping)... And right before I left it at home, I started her up.
She fired on the 4th or 5th pull. She did high idle for a couple seconds though before settling down into a normal idle.

Turned off the engine and fired her up again. Started on the 3rd pull with a nice idle. Turned her off and left her home for about 3 days.

Now the weird part.

I get home today and tried to fire her up...

NOTHING.

Tried the choke and nothing. Can't hear/feel her firing up.
Checked the flywheel and coil and it was good...
Sprayed wd40 around the carb and nothing happened...
I did check the plug tho an it seemed to be wet with gas? I don't remember that ever happening but yeah...

What do you guys think it could be?
Could it be the gaskets from the carb when I installed the blur quik release system?
I have a brand new 668 carb that I'm going to install later with brand new gaskets and see why happens... Funny thing it she started right before I left and now, no firing at all...


Help please... If this keeps going im going to be putting a brushless set up and I don't really want to do that just yet... Loving the sound and the run times of gas...
 
if she idle high then went down there is a good chance of an air leak. If the plug is wet then it running rich or you flooded while trying to crank it. Have you tried a new plug?
 
Just checked the plug and I was getting sparks each pull.
So I am guessing that rules out the coil and spark plug?

I do notice though that when I put the plug back at the head, the ps become harder to pull.
 
that is due to compression, when the plug is out there is no compression. You have spark but still try a new plug because it may not have enough spark to fire it up under compression.
 
my km 23cc when id start it would idle a bit hi for a few seconds. i upgraded to a billet CY 29cc does the same thing. only when its cold tho. never attributed it to an air leak because when they warm up they run perfect. should i maybe look for an air leak in mine?
 
by chance you have the killer bee installed? if so recharge your reciever and tx batteries. if rx bat gets low the kb keeps it from running, i found that out after letting mine sit for a spell, and tried to start it with no luck, had spark on pulls and everything, i recharged the rx batt and she fired right up
 
Okay so I checked the coil... But now my PS broke so I gotta use my drill now... Got 2 new spark plugs that I'm gonna check later.
 
Sounds like the engine is flooded to me, take the plug out and turn car over and pull the starter over a few times to expel all the excess fuel...

Did you leave the gas tank cap on tight when you last used it, the pressure build up can push fuel through the carb and into the engine when its left alone for a while, i always unscrew the cap so the pressure is released from the tank..

Just an idea..
 
Finally got her to start!!

So I tried new plugs, checked the coil gap...and nothing.

Switched the carb and gaskets out with a new walbro 668 and 4 pulls later...
BRAAAAPP BRAAP! :)

Set the stock needles to stock since she died after about 20 seconds... The needles when I got it were set to like 2 full turns for both L and H!

Set it at:
L: 1.25 turns
H: 1.5 turns

Started her again and for the most part she started in 1 pull.

Took her out for a little run and one thing that I did notice though is that she won't reach full rpms... Like she's stuck in half throttle?
But when I lift up the rear tires and pull the trigger she reaches full rpms but not while on the ground... Played with the needles a bit but no results... Low speed is smooth as hell but it seems like there is a limiter? It only reaches half throttle speed on the ground.

Any advice on this?

I got a video on the way to show you guys what I'm talking about.
 
Got the video up:

[ame]http://youtu.be/wqTVjAEBd8E[/ame]




As you guys can see I have finally got the engine to start. Only problem is, it won't reach full rpms.

The motor seems to reach full rpms while the rear is lifted but not when on the ground...

and as you guys can hear...it's not like the engine is starting at high idle...so I don't think it's an air leak?
I don't know...this ones got me stumped...I don't even know where to start. I played with the needles a bit and tried to lean both needles out by 1/4 of a turn and no results...

here's a COMPARISON of the OLD speed run video before anything went wrong.
[ame]http://youtu.be/oHZxLFQg454[/ame]


what do you guys think?
 
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ok watching that vid, the top one, sounds to me like engine is hitting close to top rpms, prob i think is your clutch is slippin, think its time for a new pair of clutch shoes.
 
it looks as tho it should fit. mine has the stock shoes still on it and theyre 8000rpm springs like the ones on DDM. hopefully a couple others might chime in also on this, i did look a bit and found one of the guys had posted a needle settings for L and H needles. ya might try locating that, and try one last time resetting needles first before getting the new shoes. from what you said you set them at is a lil off from what i read on here .
 
Alright I figure I'll try to see how she does one more time with a bit of tuning. I'll probably lean her out a bit more since when I was comparing vids, it seems a bit richer than what she used to.

I did notice something a bit weird tho... In that video it's almost as if she was stuck on the "low speed" part of the spectrum and that it's bogging a bit as she switched to the higher rpms...
 
Sadly yes...

So today, I tore the clutxh apart and saw that my clutch had indeed burned off.. I was able to purchase the hpi high response 8000 rpm clutch (15448) from my local hobby store.

Installed it and thought, "finally! I should be able to run her now!"

Went to the park... Ran one short high speed pass and felt the clutch grabbing (as opposed to the other video where it wasn't reaching full speed at all). Which put a smile on my face as I had thought my problems were gone.

Nope!

After that it was weird... The engine had died... And noticed that even in idle the clutch were grabbing a little? So when I would lift the rear up, the tires would roll... And when I drop it down, the engine would bog (I'm guessing because it's trying to move the tires but the load won't let it?)

I tried playing with the needles and nothing... Didn't try the idle screw tho...maybe I'll try tommorow.
 
AKbash said:
Sadly yes...

So today, I tore the clutxh apart and saw that my clutch had indeed burned off.. I was able to purchase the hpi high response 8000 rpm clutch (15448) from my local hobby store.

Installed it and thought, "finally! I should be able to run her now!"

Went to the park... Ran one short high speed pass and felt the clutch grabbing (as opposed to the other video where it wasn't reaching full speed at all). Which put a smile on my face as I had thought my problems were gone.

Nope!

After that it was weird... The engine had died... And noticed that even in idle the clutch were grabbing a little? So when I would lift the rear up, the tires would roll... And when I drop it down, the engine would bog (I'm guessing because it's trying to move the tires but the load won't let it?)

I tried playing with the needles and nothing... Didn't try the idle screw tho...maybe I'll try tommorow.
Click to expand...
You could ask Dan.
 
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