6500 RPM Maximum on 252XE

[jemorgan3]

Having a RPM issue with my 252XE that I can't figure out. Ive replaced the impellers with impeller.com upgrades, replaced the plugs with LFR6A's and confirmed the oil level is good on both engines. Before all that, I was limited to 6500 rpm.. And after all the maintenance, still limited to 6500!!

Am I overlooking anything? im topping out at about 38 with just me on calm water..

Tried to look at making sure the throttle cable was adjusted correctly, but the E-series boats dont seem to have a cable at the throttle body. Do we have the ability to adjust the rpm on E boats?

 

[VitaminSea]

IDK, but have you tried cruise assist? If the issue is your throttles, can you increase the RPMs that way? Looks like Cruise Assist functions up to 7k RPM.

 

[jemorgan3]

Cruise assist doesn’t do anything to help..

 

[FSH 210 Sport]

I suspect you put in impellers with too much pitch. Especially if the engines were running at full rpm before you put those impellers in.