I drilled 4 3/8 " holes in my rear baffle last year. Rode all season with no problems and more power.  I havn't ridden much this year due to shoulder surgury.  Went out for the first time in 4 months. After 6 miles with bike running great it stumbled and popped once. I was in 5th gear at about 60mph.  I slowed to stop for a traffic light and the bike died. I trailered it home.  Removed carb and cleaned it. Reduced white spacer to 1/2 while I had it apart. Re assembled. Bike started up. after warm it will die if you quickly blip the throttle. If you roll it on a little slow it will rev on up.  I rode it, It is hard to launch without dieing but then runs great until you have to stop.  It doesn't die on decel. Just when you gas it to leave the stop.  If i pull the choke out 1/2 it will launch fine. Like an accelerator pump failure on an old car carb.
I,m wandering about the "transient enrichment valve" on the diagram. Any Ideas would be appreciated.  savage is a 95.

I had similar not so long ago....turns out I'd lost the bloody little brass washer from the main jet  

there's one in the tank - well actually a screen - on the petc0ck - and another large debris blocker in the carb that sits above the float needle seat

Thanks for all the pointers.  I pulled the float bowl and removed the main jet to verify the washer was in place.
Replaced it. I removed the pilot jet and cleaned it. I had just sprayed it while installed before.  While these jets were out I gave each oriface a shot of card cleaner.
Put it all back to gether and it fired right up. The problem is 80%better.  Rode it down the road and it has like one little hickup if you instantly go full throttle from stop.  I was not preprared for the difference that White spacer made in power. Amazing!  I think I'll change the plug just to be safe.  Thanks again.

http://www.bikepics.com/pictures/414694/
Above is an Image of the Muffler On Bikepics.  

I let the bike set a day or two and it is worse now. It will start and run for about 60 seconds and quit. Took the carb back off and dissasembled to check.  Find nothing out of place. Have checked header for leaks and even temp plugged holes in muffler but no difference.  Does anybody have a source for rebuild kits for the mikuni.  I have removed the gas and replaced it as well.  If you start it and hold half throttle it will run a bit longer but will eventually die with a load backfire.  This thing failed running down the road, I can't help but think something is damaged.

Edited by Susan to fix picture link. Note to mew7789 -- the pic is so dark, I couldn't really see anything...

Slide carb's, way to go.

Clive W  

The O ring looks great.  I have a feeling the idle mixture screw is not seating. From the photos posted on this site it looks like it is a lot farther down the hole than what I'm seeing on mine. If I'm not seating it then I am counting turns from the wrong place. Could Too rich cause this?   Also,  another post here recommends running some 2stroke oil in the gas to keep the slide lubed. Anybody doin that and how much.    Thanks.

are the jets in the new carb stock?
is there black smoke puffs coming out the end of the muffler?
sounds like its rich to me,check for any air leaks around the carb too