fresh "build" on 175 2.5 - used 200 carbs - NO GO- and what is that d-mn beeping

[CircleHook]

1998 2.5 175 merc carb conversion from EFI- 1 new piston/bored 20+ others honed- 45 minute run time on hose and attempted lake run test-
compression 125 psi on old 5 - 120 psi on new piston- new rings can not be set yet- spark good when idling-
I used a set of WMV 18s (200 hp) stock jets - idle ok- at lake when attempting to throttle advanced - bogs out - can not seem to handle the fuel load-
Checked timing- was set at 18^ supposed to be 20^ - TDC set & .462 checked
Book says carbs should be WMV 4/4A for '98 newer ones have WMV 17
Are the 200 carbs just too much fuel?
and what is that damn beeping ? Getting a rapid beep from control box. Oiler removed, idle stabilizer removed, what I would normally call control module is listed as "Lubalert" on this model in book. I have several "control modules" if I should change it. I am sure something I did not hook up or should have hooked up is causing beep-

Converted from EFI to carbs-

ANYBODY GOT SOME 175 CARBS YOU WANT TO SELL?

[tunnelmike]

What size main jets? Mains that are too large will cause that kind of problem.

The jet size is more important than the kind of carb. A rejet is cheaper than a set of carbs.
. Mike.

[CircleHook]

What size main jets? Mains that are too large will cause that kind of problem. Mike.

in the WMV 18s 1 & 2 are .82 3-6 are .80 book say .78 for '98 175

how about re-jetting? 15 total - price $5-10 each (I of course will need all $10 ones) Who would be most likely to have jets in stock?

thanks for response

[perfmarine1]

Have you tried hitting the choke when it bogs to make sure it is not to lean, I know you think it's to rich but anything can cause a lean condition. I don't think a little rich would cause a bog unless the plugs are wet fouled. Did you try a quick rev in neutral then take off?

[CircleHook]

I did not try enricher- it will pull up to 1500/2000 ish under load - then bogs and dies-
I did try open throttle by hand at cam (no timing advance) - same effect but at much lower RPMs

Would low timing combined with too rich do it? Timing was at 18^ - suspose to be 20^

[CircleHook]

Have you tried hitting the choke when it bogs to make sure it is not to lean, I know you think it's to rich but anything can cause a lean condition. I don't think a little rich would cause a bog unless the plugs are wet fouled. Did you try a quick rev in neutral then take off?

Could this be from broken crankshaft sealing ring?

[tunnelmike]

Carbs are all different when it comes to jet sizes. I'm running 70s in a 91 14 petal200 that came with 66s from the previous owner in these wmv carbs that came factory on this motor. I raised the size for 34cc heads. Tried what turned out to be74s drilled out to 80 ish and that's what my Mirage did. When I would let off it would pick up rpm. If I eased into the throttle it was better but still off.

When I was drag racing a stock 2.4 with wh22s I ran 88 and 90 mains. I don't know why they are so different from the WMH carbs on main sizes but I'm slightly rich now at 70s

Try the enrichment trick , rich and lean act similar. Mike

[CircleHook]

Got a set WMV 4s on the way- when I get them on I will try enricher if still acting up
fixed beeping - though I have no idea what did it

[Go Time]

Hook, check the high output of the stator....that rpm range is where it comes in. Also take the lube alert module to the trash, no need for it if premixing.

[eli]

You using wmv carb plate ?

[CircleHook]

You using wmv carb plate ?

?? I have not seem any difference in carb plates from like 95' forward (prior to '95 maybe same also- just I have not messed with prior to '95)- EFI plate is different- but all carb plates I have seen are 43517A9-

[eli]

Wmv plate 'vs wmh are different wmv has little notches for off idle

[CircleHook]

Wmv plate 'vs wmh are different wmv has little notches for off idle

You got picture? so I can learn sumpin

[CircleHook]

Hook, check the high output of the stator....that rpm range is where it comes in. Also take the lube alert module to the trash, no need for it if premixing.

I have $25 voltage Multi-meter- can I do it with that? I do have spare stator(s) so I can swap out.

[eli]

pic of wmv carb plate