Search found 4 matches

by upstateNY
Mon Apr 09, 2018 12:00 am
Forum: REPAIRS and MODIFICATIONS
Topic: 90-HP Engine Falls Flat at Full Throttle
Replies: 21
Views: 12541

Re: 90-HP Engine Falls Flat at Full Throttle

I am sorry I have not been on in a while and did not realize I had a question pending. When I was testing the boat, I was using an old, metal, 6-gallon fuel tank because on the [24-gallon] tank I previously used the fuel line was brittle. The problem [of the 90-HP engine running out of fuel at high ...
by upstateNY
Sat Aug 05, 2017 10:24 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 90-HP Engine Falls Flat at Full Throttle
Replies: 21
Views: 12541

Re: 90-HP Engine Falls Flat at Full Throttle

Thanks for all the input. I picked up a length of 3/8-inch inside diameter fuel hose and new in-line filter attached to the 24-gallon fuel tank. Problem is resolved now.
by upstateNY
Sat Aug 05, 2017 1:16 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 90-HP Engine Falls Flat at Full Throttle
Replies: 21
Views: 12541

Re: 90 HP Engine Falls Flat at Full Throttle

I was using a Evinrude six-gallon tank and there is no vent. The fuel line is 5/16. That [may be] the [cause of the engine not being able to run at full-throttle]. I am going to get a length of 3/8 fuel line and try the 24-gallon tank I have. I just grabbed the Evinrude as it had fresh fuel and was ...
by upstateNY
Fri Aug 04, 2017 11:41 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 90-HP Engine Falls Flat at Full Throttle
Replies: 21
Views: 12541

90-HP Engine Falls Flat at Full Throttle

[A 90-HP engine] has been sitting for couple of years. [A 90-HP engine] fired up and ran well on muffs in the driveway. On the river [a 90-HP engine] has great acceleration, but falls flat at maximum throttle after a few seconds; yet it runs well at half-throttle and idles okay. Here is a youtube vi...