Be sure to check the cam key as well. I'm not sure how common it is on the unicam trxs, but I've seen the cam gear slip on several YZs and RMZs at this point. Being a degree or two off will drive you mad trying to figure out the issue. Also, just to rule it out, get a pressure tester for the fuel pump. I know you said it'll run fine once it's going, but you'd be surprised. A leak down test wouldn't hurt either. Typically with FI motors, it's either valves or the fuel pump with the occasional sensor (TPS, coolant/air temp) malfunction messing with stuff. I don't know anything about the TRX700XX, but I'm sure there's some sort of diag mode. Check the service manual if you can find one.
At this point, I think it's electronic and not a mechanical timing issue. the ECM is getting the wrong info somehow. but what the heck I'll check it out.
@@makeithappen6683 Not saying it isn't possible, but it's very rarely the actual ECM. There's got to be some sort of diag mode or some sort of error you can see with the flashing on the dash cluster.
Be sure to check the cam key as well. I'm not sure how common it is on the unicam trxs, but I've seen the cam gear slip on several YZs and RMZs at this point. Being a degree or two off will drive you mad trying to figure out the issue.
Also, just to rule it out, get a pressure tester for the fuel pump. I know you said it'll run fine once it's going, but you'd be surprised. A leak down test wouldn't hurt either. Typically with FI motors, it's either valves or the fuel pump with the occasional sensor (TPS, coolant/air temp) malfunction messing with stuff.
I don't know anything about the TRX700XX, but I'm sure there's some sort of diag mode. Check the service manual if you can find one.
At this point, I think it's electronic and not a mechanical timing issue. the ECM is getting the wrong info somehow. but what the heck I'll check it out.
@@makeithappen6683 Not saying it isn't possible, but it's very rarely the actual ECM. There's got to be some sort of diag mode or some sort of error you can see with the flashing on the dash cluster.
@MrCodgedodger the only flashing I got from the - cluster. Was when I unplugged fuel injector.