Carb problem on Yamaha 600 Grizzly

[TnAndy]

2000 model YM600 Yamaha Grizzly

Carb float needle has been letting gas run all the time for quite a while ( we'd have to be SURE to shut the tank petcock off each time, or find a big puddle of gas on the floor )....so I finally ordered a carb kit and rebuilt it.

Got THAT issue fixed by putting new needle and seat in, only to have a new one spring up !

NOW when I back up, and back up ONLY, the machine wants to cough, sputter and bog down.

HUH ?

There was no linkage or electrical tied to the gear box, or wiring.....so WHAT the heck would cause that ? You can throw it in forward, and it runs like a top.....but put it in reverse, and it sputters and dies. Seems better when it warms up thoroughly, but still there some. Slip it into neutral even, and it quits doing the sputter.

Never heard of this one, so if you have, lay some advice on me !

Thanks !

 

[timswi]

Not sure about Y2k models, but some quads have a governor to limit reverse speed...Something to look for.

 

[TnAndy]

Thanks......I'll check the service book for that feature.

 

[nybirdman]

My old Kawasaki has the reverse governor,needs to be pressed to over-ride.On normal reverse it acts fine until you try to give it too much gas.

 

[nybirdman]

On my second thought:having rebuilt the carb on mine.....your float my be out of adjustment.Did you replace when you rebuilt.?You may have to take it apart again.

 

[ruffdog]

When putting it together you may have not installed the needle-to-float spring correctly. (if it had one) Yes, check float height and always check pilot jet(slow speed) when a carb is apart because it is prone to getting plugged with debris.