I have a 2000 yamaha 250 saltwater series 2 engine. It has been a great engine but recently have had a bogging down issue. Here are the symptoms
1. the first 10 minutes I run the engine at any speed and it is fine.
2. After that at any rpm above 1500 the engine will drop down in speed surge up then drop down and continue "bogging down".
3. It always starts fine and runs at a good planing speed 4800-5000 rpms for around 10 minutes then starts to bog down or surge .
4. The gas is fine. My racor does not have any water in it. The gas tanks are new I replaced them last year. The vents are clear.
5. it seems like it is a fuel issue like it cant get enough fuel at higher rpms.
6. One other thing when the boat hits waves it seems to trigger the hesitation. I
7.. I think the engine has a canister filter are there other filters I should know about. Has any one encountered this before. Any advise. Thanks
1. the first 10 minutes I run the engine at any speed and it is fine.
2. After that at any rpm above 1500 the engine will drop down in speed surge up then drop down and continue "bogging down".
3. It always starts fine and runs at a good planing speed 4800-5000 rpms for around 10 minutes then starts to bog down or surge .
4. The gas is fine. My racor does not have any water in it. The gas tanks are new I replaced them last year. The vents are clear.
5. it seems like it is a fuel issue like it cant get enough fuel at higher rpms.
6. One other thing when the boat hits waves it seems to trigger the hesitation. I
7.. I think the engine has a canister filter are there other filters I should know about. Has any one encountered this before. Any advise. Thanks