rangereric765
Cadet
- Joined
- Aug 24, 2008
- Messages
- 9
serial number 1B 585306
08 optimax 150
Put it away this last winter running 57.8 gps at 5700 rpm with a 23p trophy plus. Sold the prop switched to a new brand, could only get 52mph with the new prop. tried 5 different props and ran 5200rpm with all of them. went back to original set up and same thing52mph and 5200 rpm. Found out my old grey fuel line need replaced due to the inner linings breaking apart. changed the primer bulb also and fuel filter again. Took it out and tried it, same thing but gained 2 mph. Took of the low pressure fuel pump to see if it had any of the old fuel line pieces in it but it is clean.
I have also replaced the spark plugs, and all look like they are burning good and identical. Any ideas?? im about out of patience and money. Oh and I have no alarms at all. and motor is a rocket out of the hole and all the way up on plane. as soon as the nose starts to come up she stops at 5200rpm trimmed out??? clean idle and throttle and runs like she did when new.
08 optimax 150
Put it away this last winter running 57.8 gps at 5700 rpm with a 23p trophy plus. Sold the prop switched to a new brand, could only get 52mph with the new prop. tried 5 different props and ran 5200rpm with all of them. went back to original set up and same thing52mph and 5200 rpm. Found out my old grey fuel line need replaced due to the inner linings breaking apart. changed the primer bulb also and fuel filter again. Took it out and tried it, same thing but gained 2 mph. Took of the low pressure fuel pump to see if it had any of the old fuel line pieces in it but it is clean.
I have also replaced the spark plugs, and all look like they are burning good and identical. Any ideas?? im about out of patience and money. Oh and I have no alarms at all. and motor is a rocket out of the hole and all the way up on plane. as soon as the nose starts to come up she stops at 5200rpm trimmed out??? clean idle and throttle and runs like she did when new.