New top end, starting problem

[kxexvxixn]

Alright guys I'm about my whits end. I'll start with some details. 00' Banshee new pistons and rings, adjustable timing plate(+4), and toomy pipes, stock everything else. I've got it back together and just can not get it to start. I have tried just about everything I can think of. I'm getting fuel, spark, and have good compression. Have tried two different cdi boxes, and stator ohms as good. It seems to fire every few kicks, smokes and even smells like it wants to start, but nothing. Is it possible for a stator to test good but not be enough to fire the bike. It has backfired twice while trying to start making me think something with timing maybe? Have tried kicking and pulling both to start but no luck. Does anyone have any ideas at all? This is driving me crazy..

 

Thanks in advance guys

 

Kevin

[sleeper06]

Is the choke tube in between the carbs,is the woodruff key in the flywheel correctly,is the pick-up coil gapped at .018-.020.Did you pressure test for air leaks,plug caps ohm out,jetting completely off

[kxexvxixn]

I knew I forgot to put some info in the first post. Yes choke tube is installed. I pulled the flywheel off to check the key, all good there. The pick up coil seems a little worn but tried the top of a spark plug box like some say to try and it seems ok. Haven't pressure tested for any leaks, but if there was a leak wouldn't the compression be down? Have went through and cleaned the carbs, floats are installed and adjusted properly, jetting is the same. What are you meaning by ohm plug caps?

[firebanshee]

Do you have your slides in the right cabs? Did you switch them when you had the bike apart?

[kxexvxixn]

I believe I have them installed correctly. But just to make sure which way should the half moon cut at the bottom of the slide be facing? Towards to motor or towards the air box?

[Larry's Shee]

Cutaway faces air cleaner.

[kxexvxixn]

Ok they're in correct then. Anyone else have any ideas? I tried my cdi box on another running banshee and it started with my box so that should eliminate that as being an issue.

[AdrenalineJunky]

I'm having same issue. Mine will fire right up if you prime it and if you then shut it off it will start right back up.

After it cools down and sits it wont start for nothing won't evenvtry then you prime it and fires right up.

[kxexvxixn]

I'm having same issue. Mine will fire right up if you prime it and if you then shut it off it will start right back up.

After it cools down and sits it wont start for nothing won't evenvtry then you prime it and fires right up.

 

That sucks man, but mine won't start at all..

[Jereme6655]

try doing a compression test now...and let us know where its at. When you installed your pistons did you make sure the gap in the ring was lined up with the small pin in the ring-land? i only ask cause ive seen this fuck someone over before.....they pu the rings on wrong and it wouldn't start so they tried pull starting it and wound up having to get it re-bored and a new piston cause it scored the hell outta the both of them.....

 

let us know what your compression is now....it'll help with diagnosing...

[kxexvxixn]

Rings are installed properly. Compression when I checked it earlier was 120-130 on both sides.

[Jereme6655]

i know im gonna get yelled at for this one.......but have you tried a LITTLE bit of starting fluid yet?

 

The problem with using starting fluid alot on a 2stroker is there's no oil in the starting fluid so its like running it without oil in your fuel.....it'll tear your shit up if your not careful with it.

 

The few times i have had to use it on 2-strokes ill take about a 1/4 ouce of 2stroke oil and pour it into the cylinder (helps lube for the starting fluid) then ill use a SMALL amount of starting fluid shot right into the carbs.

[Larry's Shee]

Check that nothing built a nest in your pipes when you had them off. Pick-coil gap .016 - .018 ? Are plugs oiled up from assembly oil? Not trying to be smart a$$, but you sure it's + 4 and not -4 ?

[kxexvxixn]

Haven't really tried starting fluid for that reason. Haven't checked the pick up coil gap. Will check that tomorrow, and will also be trying a stator off a running banshee. And yes sure its +4..

[sleeper06]

I have only seen it twice but flywheels go bad too and cause backfiring when the magnets meet up again in rotation,Pressure test it bro,good compression and a tight motor are two diffrent things,the guage has a shrader valve in so it hold the pressure in(one way).If you have spark why are you changing everything,a spark tester is cheap(inline) and tells the true story on the kick.do the reed cages look good.Is all the TORS wiring eliminated?Its really frustrating but youll get it