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  1. J

    exhaust flow for old log manifolds vs center risers

    77 vintage 351 merc outdrive powered boat.<br /><br />thinking of repowering. how much horsepower equivalent can be put thru both style exhausts?
  2. J

    formula 30pc t /502 bravo2's speed

    what speed numbers can be expected from this package? any help appreciated
  3. J

    suzuki shifting problem

    well, over the weekend, i encountered a new problem with one of my 200 hp suzuki's (1987's).<br /><br />coming into the dock, one refused to engage reverse. moving the control lever ito reverse started the process, could hear (i presume) the tips of the gears grinding, but no engagement! this...
  4. J

    bia change in ratings?????

    can anyone tell me when the bia changed the HP ratings from flywheel to propshaft??
  5. J

    bia change in ratings?????

    can anyone tell me when the bia changed the HP ratings from flywheel to propshaft??
  6. J

    Exhaust flow questions sbc

    back in the 70's, boat engines had "log type" manifolds.<br /><br />these later evolved into the center riser type manifold which presumably flows better than the old log type.<br /><br />a.) how much hp can be gained by an exhaust manifold replacement?<br /><br />b.) which oem or replacement...
  7. J

    merc # 2 drive packages

    i'm considering taking a ride to look at a boat with twin #2's with 350 chevy's.<br /><br />what i curious about is....<br /><br />purportedly they are counter rotating. (i seem to recall that availability)<br /><br />did mercury do this with counter rotating engines or do it in the...
  8. J

    hello and thanks, rodbolt!!!

    several months ago, you provided some input on my underperforming 200 hp suzuki. at last post, my season had ended and i said i would pursue your suggestions in spring. <br /><br />last sunday, i took the cover(cowl) off and checked the air gaps for the pulser coils on the underperforming...
  9. J

    suzuki 200 *87) static timing

    how is it set, please? manual says it needs to be 22 deg, but how is it set?
  10. J

    trouble shooting suzuki 200 (87)

    trim indicator switch.<br /><br />can someone tell me how to wring out the leads?
  11. J

    translating compression ratio into psi

    compression test on 200 hp suzuki is 110 psi at whatever compression ratio they have. what/how much does the c.r. need to be raised to bring the psi to about 145?
  12. J

    suzuki pulser coil air gap setting

    what is the spec for the air gap on the pulser coils and what is the effect if the gap is either too little or too great?<br /><br />thanks
  13. J

    suzuki v6 cylinder heads

    since its been suggested i need to replace my head gaskets on my 200 (hp suzuki 1987)i may as well install the dual plug heads i have acquired over the years. i also have the rest of the ignition parts in order to do a complete swap.<br /><br />several questions:<br /><br />1.) any good...
  14. J

    head gasket question

    i've had it suggested that a head gasket can leak water into a cylinder despite holding good compression?<br /><br />anyone ever hear this?<br /><br /><br />ever heard of periodic head gasket replacement ?
  15. J

    suzuki v6 experts please!!!

    is ther any adjustment available for the base timing on these engines?<br /><br />looks to me like there isn't but i might be missing something.
  16. J

    suzuki v6 experts please read!!!

    looking for advise on a good technique for installing/adjusting the throttle position switch.<br /><br />in addition, what is the downside for a misadjusted switch.<br /><br />thanks for the help!!!
  17. J

    87 suzuki 200hp questions

    i have a pair of these and one is/has lost some performance.<br /><br />the torque on acceleration is way down (one engine will plane the boat and the "weak" one won't) and max rpm on the weak one is 800-900 lower.<br /><br />i have good compression (110+ in all cylinders with a range of +/-...
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