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Air silencer off

"Well, he was probably talking

"Well, he was probably talking about output torque, in ft/lbs. I cannot find a spec on the output torque at 5000 rpms, so I will not speculate.

OK...my personal opinion...no experience other than my own...
High 80s for compression is too low. I would be rebuilding it if it were mine. I would consider it worn out.
I have one running compressions right at 95 on all cyls, and to me it just seems worn out. Will not get above 5000 rpm at WOT and fully trimmed.
That bit about 90 psi from the factory is an out and out lie from Robert.
You remember I bought my 96 200 motor from him? Well he said and was very proud...used it as a selling point....that the comp was 110 on all cyls. I went down there to pick it up, and verified it in his shop...110 across the board.
Take it for sure...he lied to you about 90 psi being spec from the factory.

Grinding huh, are you shifting very slowly? You can't shift it slowly into gear. You gotta briskly push it from neutral into gear. Don't linger thru the shifting process. Should sorta "clunk" once."
 
The only thing wrong that I re

The only thing wrong that I remember about last compression test I did was that I did not warm up the motor before testing and did not open the controller to WOT nor opened it at all...doubt that gave me the low reading...

Dough: how big is your boat and how much it weights???
 
"Hurricane Fundeck 22.5 ft.
A

"Hurricane Fundeck 22.5 ft.
About 2500 lbs with engine, 2000 lbs without.
Had a 96 200 on it, would run 5500 rpm, 47 mph trimmed out.
Put this 98 200 on it, 95 lbs compression, and now it barely makes 42, and only turns 5000 rpm.
Same prop, 14.5 x19.
I am building a powerhead right now to fix this issue!!! I figure it is just "worn out" and doesn't have the "push" it had before.

http://www.godfreymarine.com/cf/featuresheets_2009/fs_index.cfm?modelName=FD%202 26%20RE%20OB&series=fundeck"
 
"Nice boat... about the issues

"Nice boat... about the issues of "going in to gear" if I just yank it to gear, the boat jerks and tries to go fast and the people in the lake are buttheads about no-wake zone (the ramp is in the no wake zone), that is why I would like to lower RPM just a little, about the your carbs I love to have them, as soon as figure out the exact year and model of my “Franky” power head I'll buy them from you, I just want to make sure they will fit..., I’ll take some pics of the air silencer of mine, as I started to develop a theory about it, it appears as “some” of the holes thru which the air come in are half blocked by the other half of the air box, hard to explain but I’ll post some pictures, that could be a reason why w/o the air box the motor actually achieves higher rpms than with It ( but I’m not going to take chances and run the motor w/o it), the run w/o it I actually went 53000 rpms and got ~45 MPH IAW my GPS"
 
No comment about the lie Rober

No comment about the lie Robert told u?
Any thoughts on "low compression engine and only 90 psi from the factory"?
 
Horsepower = torque * RPM

Horsepower = torque * RPM / 5250.

So at 5250 a 200HP engine should produce 200 lb-ft of torque and at 5000 RPM torque should be 210 lb-ft
 
"Now that is just the best thi

"Now that is just the best thing I have learned today!!
Thanks for responding, Noel.
This site is great."
 
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