Posts
110
Joined
8/29/2018
Location
Union Bridge, MD
US
I just got my RMZ250 back together, I had put in two new intake valves and reshimmed all the valves. I finally got it running and although it starts it pops a lot on acceleration and will die after running for like 10 or so seconds unless I keep up on the gas a bit. If I let off, it will die. Any ideas?
I also want to ask... when you replaced the valves.. you didnt throw new valves into that used head right? You sent the head off go get new seats installed and you replaced all 4 valves? If not id be looking into doing it. New valves and old seats dont seal. If theyre leaking youll have all kinds of issues that none of the above suggestions will fix.
The Shop
How old is the fuel?
Have you cleaned the fuel injector or looked at the fuel pump filter?
Did you put in a new cam chain?
The popping can be leaking valves and or a lean fuel mix due to dirt or a leaking exhaust gasket. Did you put in a new exhaust gasket? If not, it will need to be replaced.
Paw Paw
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