coolinaz2005
New member
I have a 75hp mariner that jus
I have a 75hp mariner that just got tuned up. Runs fine where it got tuned up. Page AZ 3600ft. I took it to the lake by my home in Flagstaff az (6900ft). usto run fine up here I do change the prop but cant remember the size and pitch. 5200 is WOT rpm but only hit 4800 and it wants to go and then cuts back 4600 and then goes again. Before it was tuned up it did hit 5200 rpm at the higher altitude. Have thought about rejetting for higher but have read that you dont really have to. Any suggestions and Help??
I have a 75hp mariner that just got tuned up. Runs fine where it got tuned up. Page AZ 3600ft. I took it to the lake by my home in Flagstaff az (6900ft). usto run fine up here I do change the prop but cant remember the size and pitch. 5200 is WOT rpm but only hit 4800 and it wants to go and then cuts back 4600 and then goes again. Before it was tuned up it did hit 5200 rpm at the higher altitude. Have thought about rejetting for higher but have read that you dont really have to. Any suggestions and Help??