Yamaha 130.....Won't Go Past 2200 RPM's

[flatsmanedg]

I have a 2000 Yamaha 130 hp. <br /><br />It idles fine, but when throttled up under load, it maxes out at 2200 RPM's. <br /><br />If not in gear, I get the full range of RPM's. <br /><br />I replaced the plugs (quite fouled) with new plugs. <br /><br />The motor ran well for thirty seconds, through the normal RPM range, then bogged down again.<br /><br />On the way back to the ramp, it kicked up to 3500 RPM's, but only for a moment.<br /><br />The motor has run flawlessly up until now and been serviced regularly.<br /><br />Any help would be greatly appreciated.

 

[Ray Neudecker]

Re: Yamaha 130.....Won't Go Past 2200 RPM's

Time to check out the fuel system for a restriction.

 

[flatsmanedg]

Re: Yamaha 130.....Won't Go Past 2200 RPM's

I will replace the fuel/water separator and fuel filter tomorrow afternoon.

 

[rodbolt]

Re: Yamaha 130.....Won't Go Past 2200 RPM's

while replacing the filter after its passed trash/water is nice if the stuff is in the carbs aint but one way to get it out and continuing to run it aint one of them.<br />trick is to keep an eye on the filter, they are cheap.<br /> you may also look into testing the high speed charge coil as per the service manual.<br /> Ray<br /> why do fools spool up a motor with no load? I mean if all ya want is RPM throw the prop away.

 

[Propnuts]

Re: Yamaha 130.....Won't Go Past 2200 RPM's

Just to irratate you Rod bolt!

 

[Ray Neudecker]

Re: Yamaha 130.....Won't Go Past 2200 RPM's

Trying to test the bearings would be my guess. Had a driver try to leave the starting line once with out the motor in gear. The flywheel went through the cowling when the crank broke. Top main failed that test.