View Full Version : General Q & A




  1. fuel pump(s) for 1000/1200hp...help.
  2. Tach Wiring Question
  3. Gauges help needed
  4. oil temp sending unit on Fountain
  5. motor running rough threw code cam sensor fail
  6. What Color is your Drive Oil
  7. Radio issue...
  8. Dextron III in a Velvet Drive...?
  9. 350 Mag Services Manual
  10. New 489 Blown Head Gasket After 2 hrs run time
  11. Blown Head Gasket After 2 hrs run time
  12. how much to build a 496 stroker?
  13. Fuel Regulator Placement??
  14. Any Landscapers around, got a trimmer related question?
  15. 496 MAG HO heating problem
  16. Fuse for accesory power outlet plug
  17. push button shift on Merc trans
  18. how do i post pics
  19. Temperature problem with 454mpi
  20. Can You Convert A 1994 502 Magnum To Carb?
  21. Problem 496 MAG HO with whipple
  22. computer/ecu no good? 502 mag. help please!!
  23. Erratic oil pressure above 4300RPM
  24. stuck engine hatch on 32 fountain fever
  25. New bilge pump not working
  26. Outboard stalls after hot restart
  27. Drive Oil Analysis Lab
  28. GPS question
  29. Ballast Tank Question
  30. Fire Extinguisher ?
  31. 1994 502 Magnum Runing On 4 Cylinders
  32. holley electric fuel pumps
  33. Which HP500 intake gaskets
  34. bad vibration when turning or with the drive tucked in all the way?
  35. Livorsi Speedo quit
  36. Trim tab Indicator
  37. purchacing dry exhaust
  38. New engine tuning
  39. trim limit help please
  40. quicksilver shifter ?
  41. Merc 502... Can I just use a truck starter or is it not the same?
  42. Lake Cumberland
  43. Water pressure guage on closed cooling 525
  44. Gaffrig tach calibration
  45. anode question
  46. Bunk Carpet
  47. Gel coat supplier
  48. Thunderbolt ignition tach wire.
  49. Mufflers for Dry Exhaust
  50. Fuel Pressure Problems
  51. What should fuel pressure be?
  52. Is there an adapter to put 5" hose on a 4" tailpipe?
  53. Timing on a supercharged small block
  54. Bennett trim tab help please
  55. Wema fuel level sender trouble
  56. valve lash
  57. Problem with my 454 Please Help
  58. 91 Octane or 93 Octane w/ Ethanol?
  59. drive swap info
  60. 496ho high idle? please help
  61. Question???
  62. Running lights/Blower causing boat to run like crap
  63. Anyone have troubles with Morel hydraulics?
  64. 575sci with intercooler and 871 upgrade
  65. JL 770 question
  66. pwr strng pump
  67. Motor Surging
  68. Low Compression #4 and #6
  69. Average build time for engine?
  70. Rebuild 502 or repower with 525
  71. MSD Distibutor HELP!!!
  72. More from a 350 mag
  73. Painting my Imco Extension Boxes.....
  74. Old dried up fuel tanks
  75. engine RPM with 25 mirage plus
  76. Need a part description & where to find?
  77. Timing help
  78. gen 6 502's what are they worth/trade
  79. can't get over 3000 rpms on starboard motor
  80. Fuel additive...yay or nay???
  81. timming jumping all over
  82. zero effort shifter cable installation
  83. engine help
  84. 6.2 bearing failures
  85. 454 mpi ps pump
  86. 496 alam every minute
  87. question about drives and lower units
  88. One engine down on RPM at wot
  89. Mercruiser Slow Acceleration Only
  90. Battery Draining
  91. what oilpan for 383 stroker, stock is hitting !!
  92. how much hp 454
  93. Mercury 600sc stalls when shifting imco sc drive
  94. Power Steering turns left, but very hard to turn right??
  95. Best Method for Charging Batteries?
  96. Water Pressure Guage Doesn't Work?
  97. Fuel fill line
  98. Boat pulling to left
  99. xr cavatation plates
  100. 525 vs 496- How many Hours until rebuild?
  101. Fuel Problems. what am i looking at?
  102. Cut filter, have questions
  103. Livorsi Speedo, Garmin antenna
  104. Loss of power/engine coughs then dies
  105. New 525 efi overheating
  106. need muffler
  107. anyone know where to get brass freeze plugs for a 502 ?
  108. engine parts
  109. 598 thoughts please
  110. alternator wiring help
  111. 525 EFI plug fouling
  112. Where to START! Breaker keeps flipping OFF
  113. rooster tail
  114. Timing Issues
  115. trims wont work seperatly
  116. Thanks again RAYLAR
  117. white sludge / film underside valve covers
  118. Holly Carbs New Models
  119. Looking for 2000 Wellcraft Excalibur Windshield
  120. Have you ever had to adjust the camber on your trailer axles?
  121. Pcv sizes
  122. Help! Sneezing and popping coming on to plane.
  123. scanner and workshop manuals
  124. Ignition timing
  125. oil cooler pluming
  126. cut back risers?
  127. Need ideas on how to mount wind deflectors
  128. Trim Tabs drawing power when idle
  129. Timing a Thunderbolt ignition question.
  130. Gps
  131. Mercury systemview trim indicator function
  132. How many hours is a lot on a merc 454?
  133. Tune-up on 7.4 MAG
  134. Running Hot-Help, I need to fix this tomorrow morning!
  135. Gaffrig GPS speedo intermittantly working
  136. p/s pump fitting??
  137. 502zz cam w/ 496 manifolds
  138. 454 Mag Timing
  139. Cam question for water reversion
  140. DPX problem.
  141. How to I.D. Ignition?
  142. TB IV and msd blue box
  143. how much are these motors worth??
  144. water reversion ?
  145. Help With Gauges - Tach Works Randomly
  146. Why so many bb's vs. sb with procharger??
  147. Frozen 500efi... Now i guess i get to build a new one;-)
  148. 25 sunsation impeller change ??
  149. Charging issues
  150. How is water getting in the cylinders of my 496Mag?!?!
  151. Hydraulic hatch cover wont lift *formula boat
  152. gas gauge quit working
  153. Synthetic for an older motor?
  154. Best Oil for a Merlin long Block 540??
  155. Adding 2 stereo batteries
  156. 97 454 Mag stock oil pressure?
  157. alpha one whining
  158. powerglides with twin diesels?
  159. 575sci Intermittant RPM hesitation??
  160. Gauges ??
  161. Oil pressure gauge fluctuating above 3000rpm!!!!
  162. Broken Exhaust Valve Guide SBC
  163. Canfield stud girdles?
  164. 502mag and msd tach adapters:
  165. Stand off box, when do you use them, what size of boat?
  166. HP500 16535 Hydraulic Roller Lifters Cross Reference
  167. RPM issues
  168. oil sandwich adapter
  169. bat boost components
  170. 525SC Stock Jetting?
  171. HP500 Headers and bored over jetting change?
  172. Stock Chevy 454 Timing.
  173. replaced tbolt v with d.u.i. and cant get tach to work
  174. Reverse Rotation Engine
  175. Tb Iv - Help!!!
  176. Fuel Pump Mech. GPH ? which one
  177. 454 mag lean? need advice on what to do
  178. Boat position on the trailer and slings usage
  179. Prop Selection Help Needed
  180. Stock factory hydraulic steering arm leaking
  181. J.c. Marine,,,496 Impeller Kit
  182. prop
  183. I Need a Set of BBC AFR Heads for 598ci. Supercharge
  184. Another Holley Idle Thread - I'm at wit's end!
  185. oil temp sensor placement
  186. Missing alarm check - 496 HO
  187. Speedometer not working with IMCO
  188. 502 MPI hard start when cold
  189. 700sci IAC Fault Code
  190. Air Gap Intake Manifold
  191. How to tap 502mpi fuel rail?
  192. Can't get engine to warm up.
  193. Captain's choice wont stay open
  194. oil line size
  195. 502 -99 wich gasket?
  196. water in oil 454
  197. Constant tension hose clamps
  198. Outdrive Jacks and Stands
  199. msd problems
  200. Exhaust Diverters
  201. Oil T-stat selection and plumbing
  202. Valve guides for Mercury Racing 525 EFI
  203. X-Dimension Help
  204. 4.3 missing
  205. 496 Poppin through exhaust
  206. Blower motor
  207. 502 Ecm
  208. K K Tab Cables???
  209. Ran above 4000 rpm, overheated
  210. Scx Oil
  211. Arneson single cylinder steering
  212. What size/brand line on your box anchor?
  213. New Sarter Motor Or?
  214. batterys
  215. Any idea where these wires go
  216. Bennett Tabs?
  217. bimini top
  218. Special relay for engine hatch actuator???
  219. thermostat housing issues..
  220. Urgent!! Please Read!!
  221. 500 efi rough idle- surge
  222. fuel pressure problem ?
  223. Max HP for Stainless Marine Exhaust
  224. short block or complete???
  225. 525s vs 700
  226. Did I Undercarb my 489?
  227. Seating Capacity 87 Nova III?
  228. 525 Timing Adjustment
  229. B 1 drivr to a XR
  230. Carb/Fuel pump Help
  231. K&N VS. Gaffrig style
  232. Fuel Problem
  233. whats less room on a blower motorI am
  234. Trim Pump Dipstick??
  235. rubber flooring
  236. 502 mpi Fuel Pressure- need help
  237. Steering Helm replacement
  238. Black full cover How Hot?
  239. were to buy new cockpit cover
  240. hp 500 carb jet sizes??
  241. Steering control valve, Saginaw valve
  242. Busted Trim Tab plane
  243. 454 gen 6 H
  244. roller rockers and tall valve covers
  245. 420 Mega Blower B&M
  246. smartcraft
  247. 27 Series Deep Cycle for starting
  248. Baja 250 sport engine throttle cable question.
  249. Plug wires
  250. Converting from 502efi to 525EFI
  251. Can somebody tell me what part I need?
  252. heads? cam? small block stroker build
  253. Costs to rebuild Upper drive Bravo One X?
  254. Wire Size
  255. merc fuel cool system
  256. 525 Problems
  257. Shifter/throttle help
  258. 3X18 Oil Cooler Help
  259. 1987 Baja 240 Sport Hatch Lift
  260. k-plane mounting
  261. Priming Oil Pump
  262. Anyone heard of Xtreme Custom Boats??
  263. Any Jet Boat Techs Here?
  264. What in a Holley carb would cause a mid range miss?
  265. 525 sc Thermostat
  266. Livoris to Garmin
  267. Needed Vst Pump Asap
  268. where to be 140 Thermostat 7.4 mpi 1999
  269. Rebuilding A 525 Efi
  270. Carb size
  271. Fixed vapor lock 454mag mpi's with VST
  272. Mechanical Oil Pressure Gauge
  273. Mercury "O" ring sealant ?
  274. batterys
  275. Best Battery Setup??!!
  276. Fuel mileage 454?
  277. Gen VI 500hp
  278. Hawk 525sc oval port intake with rectangle heads
  279. 502 Mpi Problems Help!!!!!!!!
  280. HP nearly stalls when throttled back to idle
  281. Cmi Etops
  282. who makes a trans for torque 1375 hp
  283. props
  284. need help choosing prop for baja sport 250 with 450hp
  285. Feeler: Whats it worth? 1995 454MAG EFI 120hrs Complete
  286. steering wheel out of center
  287. Holly Marine fuel pumps.
  288. 7.4 Liter vs 6.2 Stroker Rebuild - Need Advice!
  289. Idle adjustment
  290. Baja 240 rpm question
  291. teach me about tunnel tabs...
  292. Help with Merc 5.0 cooling issue
  293. 496 HO Oil in coolant issue
  294. 496 HO Warning buzzer issue
  295. stepping The hull
  296. 825 mighty marine demon
  297. sea doo techs??
  298. K-planes
  299. 496 H.O. and Boost pump
  300. drive couplier
  301. mercruiser lower shift cable
  302. VHF Radio
  303. Exhaust Temp
  304. broken motor mount bolt
  305. engine builder or mechanic in ct
  306. temperature problems
  307. 502 MPI hard start, water temps, steam, riser temps ???
  308. hp 500 carb leaking at throttle shaft
  309. holey or bg demond
  310. holey carb gurus
  311. 525 EFI Service intervals -When and what is recommended
  312. How much water presure is to much ?
  313. Whipple intake manifold.....huh?
  314. Best Engines :-) BPM or Crusader ?
  315. 502 hole in piston, oil everywhere
  316. Intermitent whine around 3000 rpm
  317. Engine Serial Number
  318. Corsa Q&Q+ trouble shooting
  319. Power steering weak??
  320. Vibration / U-Joint / Gimbal question - BIII
  321. Trim Tab Size Question
  322. 496 Mag Rich at Idle & Feels weak over 4k
  323. Floating Boathouse
  324. Nose Bleed Supercharger Boaters?
  325. 502 mpi Fuel Pressure Regulator Question
  326. Idle RPM
  327. 525SC Spark Plugs
  328. 87 Pachanga 22 props anyone?
  329. Newbie Outboard/GelCoat Question?
  330. 502mpi Vapor Lock
  331. Power Steering/ Steering Cable???
  332. steering ram size question
  333. Bill Gibbs Racing Oil
  334. Fuel pump oil
  335. Flushing out impeller pieces?
  336. Can't get the Alternator off
  337. Repower 2 x 36ft Spectres
  338. 10% Ethanol enhanced Fuel in my 525SC
  339. 500 efi alternator?
  340. 500 EFI recirculating pump
  341. cost to polish imco lower?
  342. Raylar Heads and Dana Exhaust
  343. Bravo Drives moving upon acceleration
  344. need help: breaking up, loosing rpm when running hard
  345. Recommended oil cooler size?
  346. Holley Carb Tuning
  347. what oil to use
  348. Port Tach jumping around
  349. Known problems and solutions
  350. Throwing accessorie drive V belts
  351. subwoofer box in rear bench and speakers
  352. Silent Choice Wiring
  353. Engines cross cranking
  354. Help new engine has a miss in the 3800-5000rpm range
  355. Forumla for Horsepower estimate???
  356. Oil Temp, What is normal or acceptable
  357. 496 ho over heating
  358. steering issuess
  359. Bravo Drive trims up, not down.
  360. ECU - Arizonia Speed & Marine
  361. 496 HO wont run, help!!!
  362. holley mech fuel pump
  363. 500HP starts missing in rough water conditions only?
  364. NXT1 Dipstick oil leak
  365. Oil temp sensor?
  366. Seawater Pump Belt Problem
  367. Time for new power, what to do?
  368. RPM/temp QUESTION
  369. engine hatch lift
  370. How bad does your boat leak?
  371. 177 blower pulley question??
  372. Best starter for a slightly modified 454?
  373. Shorepower charging
  374. Need blower carbs
  375. Electric Choke not working....
  376. new lenco hp 25x14 tabs
  377. Gaffrig gauges: what do you guys think?
  378. Horsepower Loss do to Wet Exghaust
  379. Jabsco water pump
  380. Livorsi GPS speedo not reading
  381. Oil level weirdness.......
  382. Fuel Pressure 502 mpi?!?!?!?
  383. flyhwheel
  384. Starter noise, but does not turn over.
  385. Stellings Box on 25 OL.....issues....
  386. Do all cats porpoise?????
  387. Smartcraft Guage problem
  388. Outboard Question?
  389. Help me start this 502!
  390. Exhaust Set Up Dif From 9.8 Block To 10.2
  391. 502 Balancer
  392. fuel pump vent hose
  393. Trailering clips for TRS
  394. Best conventional straight weight for a 700 Hp engine
  395. 600sci stage 2 probs
  396. Mechanical trim indicators are sticking!!! Help please!!!
  397. Fuel Problem ?
  398. Apache font
  399. Carb to MPI swap (gen iv)
  400. Change springs on HP500
  401. powersteering pump ?
  402. Ignition Fuse
  403. 1990 Black Widow coming along
  404. Msd Billet Distributor
  405. Inverter ground
  406. Restrictor in Prochgr FMU Vac Line, Why?
  407. How much drive oil in the sea water/fuel pump resevoir?
  408. Upholstery Question!
  409. thermostat housing/exhaust/hose routing questions
  410. Ever hear of a Brady Valve (vaporlock)
  411. Thackery spring
  412. merc racing pcm upgrades
  413. Starter Slave Solenoid Location -- 500 EFI
  414. repair a trim cylinder?
  415. Bad fuel pump?
  416. wire questions on 502 mpi
  417. 330 breaking up at 4200
  418. Can you guys use ZZ502's?
  419. Steering getting stuck when turned all the way left???
  420. omc ford 460 coupler
  421. Plug wires
  422. Compression Specs...
  423. O2 sensor - need install location
  424. props
  425. Need headers for 10:1 540EFI
  426. decent cd player for the $
  427. Intercoms
  428. 2000 454 Mag Mpi Starter Issues
  429. basic holley carb tuning question
  430. Gas Tank Pickup tube
  431. Drive trim Question???
  432. Oil cooler recommendation HP500
  433. Need advise on mounting anew compass
  434. Any thoughts of All American Drive Service?
  435. 525SC Clone Upgrades
  436. Cooking Gear Lube
  437. Fountain Ballast Tank?
  438. Best Headers?
  439. HP 500 (carb) upgrade options
  440. 38 fountain lightning vibration!!
  441. ??? Blown bravo one drive
  442. Alarm Sounding
  443. 500 EFI starting issue
  444. 502 mpi problem!!! HELP!!!!!
  445. Looks like I need a sea water pump; anyone have one?
  446. Oil leak on BBC
  447. White smoke from port exhaust
  448. Aeromotive fuel pump pressure drop?
  449. can i use a automotive water pump for circulation?
  450. Trim Switch
  451. choke problem ( I think )
  452. 502mpi ps/oil coolers set up on 496 build
  453. biloxy talkoffshore
  454. Stainless Marine OR EMI Replacement For Stock Exhaust Manifolds
  455. prop selection
  456. EMI thunder thread on bolts
  457. Both motors, #5 exhaust valve N/G
  458. mercruiser mpi wont start
  459. 500hp valve spring replacement
  460. corsa, 1 not opening completely?
  461. WIX Racing Oil Filters
  462. 500 hp short block
  463. Bad day on the water for 1 motor
  464. RPM loss on engine rebuild
  465. Does Livorsi still make the post style connection?
  466. Help needed fast intercooler
  467. Merc 500HP "Blue Motor" Cam & Heads
  468. GEN VI flywheel info needed
  469. x dimention
  470. Tubes on drives to induce cavitation
  471. Steering, Has anyone installed the Teleflex HPS rotary helm?
  472. Fresh water flush questions
  473. Bravo 1 forward- reverse clip question
  474. Digital Gaffrig Gps
  475. Steering Question
  476. exhaust muffler tip question?
  477. Exhaust Extention Questions
  478. Trim display outside your normal trim angle
  479. E3 Plugs?
  480. Question about cast iron exhaust and changing risers
  481. choice of 2 cams
  482. K-Plane and Trim pump fluid.
  483. Bravo X vs XR
  484. Help--got Gas??
  485. No Voltage to Port
  486. prop shaft wobble bravo 1
  487. Water temperature for 6.2 liter mercruiser
  488. 10' gw invader
  489. Question for the carb Guru's
  490. 92 Nova Steering Wheel Replacement
  491. need 496 experts again fuel prob?
  492. Gimbal bearing pullers
  493. Upgrades for 2000 7.4 MPI
  494. Intake gaskets
  495. Air hose from valve cover to breather
  496. what is this beeping noise?
  497. warning beep?
  498. 502 Oil filter questions w/HP500 oil Thermostat.
  499. 496ho constant beep
  500. Survey items on 1999 HP 500's?