7 Machine
Home / Kawasaki

Stumped

brute782010-08-12 13:48:49 +0000 #1
Well been at it off and on as i get time working on this dang brute..who at one time purred..i miss those days any ways..the bike just spits,sputters,backfires,smokes and just plain runs bad at low rpm..just got done checking fuel pressure and it was 42psig..i think manual says 40-45..i have replaced plugs,wires,coils,cleaned electrical connections, even checked compression all good..what about valve clearences dont see why these would be off and dont hear ticking but Iam stumped any ideas?
drtj2010-08-12 14:02:15 +0000 #2
how long has the gas been in there?
nmkawierider2010-08-12 14:04:10 +0000 #3
Valves get tighter over time as they wear into the seats not looser. If they leak for too long, the seats burn, then its valve-job time, so better check them. Junk in the injectors can also make it run bad. A bad controler too. Some are also reporting their crank shaft position sencer going bad. More on the 08s though. Oh...you have an 08..Hmmm.
brute782010-08-12 15:03:54 +0000 #4
@drtj just changed the gas..

@nmkawierider will be checking valves then, aslo did pull and clean injectors,when you say bad controller do you mean ecu? and if the crankshaft sensor was out would it trigger an fi light or any thing..thanks again

Reply

Name:
Content:


Other posts in this category