I rode my brothers 1991 DR 350S to try and help him find out why it dies when riding over hard whoops and hard bumps. The local bike shop has been thru the carperator, valves and all the electrical. It feesl like the gas just shuts off when you hit a ditch or whoops section. Any experience this or have any ideas??
He tried the kick stand switch. It only interupts the starting circuit not the running circuit. Once the bike is running it will run with the kick stand down. Thanks anyway for the tip. Any other ideas on what to check?
I'd guess something electrical, just becuase it only does it when it gets rough and something might be shaking loose, or shorting out, but you said the shop went through it. I'll be interested to find out what the cause is, don't forget to share it when you finally find it.
Thats what we thought but you can feather the throttle and most of the time keep it running. Usually full throllte while it is blubbering away then back to idle and you might lkeep it running. It's a crazy one!
a long shot becuase im not familiar with the bike. My bother inlaw's yz400 was dying once in awhile when he was on the gas hard to the right. We finaly noticed the compression realease cable would tighten up and open the realease hence killin the motor. Maybe he is having similar crap