Walbro WT-990 disappointed.

[Stygian]

Yes.. it can kill fire to the motor preventing it from starting..have you tried a shot of ether in the Carb. Or a shot of gas.if it fires then the carbs not getting fuel to the motor. If it doesn't fire then bypass the fail safe and try again. Also did you make sure your plug is gapped correctly,just cause its a new plug doesn't mean its right.. Those are really the only 3 factors in a 2 stroke running. One last thing. I had a instance once where my throttle got reversed. I pulled for 30 mins wandering what was wrong cause mine start easy every time. Turned out. That little bit of forward throttle the servo gave the truck to start, when reversed it was killing the truck. Good luck, if all else fails take it to your local lawnmower shop.

Will try this tomorrow as it's kinda late now to be trying to fire it up last thing I need is the cops being called lol. I'm sure I will get it and thanks for all the useful tips.

 

[Stygian]

i thought you could get velocity stacks with chokes?

You can, but I didn't think I would need it lol.

 

[andyken]

i thought you could get velocity stacks with chokes?

yes, for "on road", they are not sealed well and suck dirt into the motor...

 

[RampageCrazy26cc]

yes, for "on road", they are not sealed well and suck dirt into the motor...

yea i just read that on ddm.

 

[andyken]

I bet if you do my filter off hand choke it'll start, just a pain.

Just make sure nothing gets sucked in with filter off...

I plan on trying the bag trick soon.

Once started the 990 is awesome.

 

[Stygian]

I bet if you do my filter off hand choke it'll start, just a pain.Just make sure nothing gets sucked in with filter off...

I plan on trying the bag trick soon.

Once started the 990 is awesome.

Going to try what you do in the morning it's too late now

 

[RampageCrazy26cc]

Going to try what you do in the morning it's too late now

cant wait to hear if it works or not.

seeing how much trouble your haveing is making me think about not getting a 990 carb now

 

[Stygian]

cant wait to hear if it works or not.seeing how much trouble your haveing is making me think about not getting a 990 carb now

If the hand trick works, it's not that big of a hassle with this filter has you can just slap it on and tighten down the clamp in just a few seconds.

 

[RampageCrazy26cc]

If the hand trick works, it's not that big of a hassle with this filter has you can just slap it on and tighten down the clamp in just a few seconds.

true.i have my finger crossed

 

[rampagemt]

You guys ever think of throwing a plastic bag over air filter with a rubber band? Works like a dream. Also if correctly tuned it will start really easy!!!

 

[blak__jak]

I've got 990's on both my m/t and d/r. I used to use the bag trick to get them started and it worked fine but now with hpi filters on both all I do now is spray a short burst of quick start on the filter, don't over do it, and both of them will fire up within a couple of pulls. I don't know if this is considered a good practice or not but it works for me.

 

[Greggfromohio]

I've got 990's on both my m/t and d/r. I used to use the bag trick to get them started and it worked fine but now with hpi filters on both all I do now is spray a short burst of quick start on the filter, don't over do it, and both of them will fire up within a couple of pulls. I don't know if this is considered a good practice or not but it works for me.

I don't see a problem with using quick start as long as it a small amount. But one problem with spraying it on the filter is that you are washing the oil off of the filters and possibly forcing dirt through them.

 

[Shalako]

I've got 990's on both my m/t and d/r. I used to use the bag trick to get them started and it worked fine but now with hpi filters on both all I do now is spray a short burst of quick start on the filter, don't over do it, and both of them will fire up within a couple of pulls. I don't know if this is considered a good practice or not but it works for me.

What brand of quick start do you use?

 

[rcgasser]

That is correct any problems with the 990 starting the carb is not tuned right because once its tuned it cranks very easily and screams.

 

[Stygian]

I love you guys, I put my hand over the stock second pull it wanted to pop the third pull it popped took my hand off second pull it fired up and boy is that sucker loud sounded so sweet. Thanks all for your help and support.

 

[Stygian]

That is correct any problems with the 990 starting the carb is not tuned right because once its tuned it cranks very easily and screams.

This is incorrect, because with what you're saying with a factory setting it should fire right up.

 

[andyken]

I seen here some guys richen the low needle for starting, then go back to their tuned setting.

 

[Stygian]

Nice, after I get the wheels and the other odds and ends back on it, I will try that, I'm just happy to know it wasn't a bad carb.

 

[Sergio]

Nice, after I get the wheels and the other odds and ends back on it, I will try that, I'm just happy to know it wasn't a bad carb.

Man i had trouble with The 990 when i first got it but after i got The hang of it was all good

 

[Stygian]

Man i had trouble with The 990 when i first got it but after i got The hang of it was all good

Yeah, it started this morning with the hand trick no problem. going to order another carb air filter and what not too for the XB.