View Full Version : General Q & A




  1. Can this happen again?
  2. cherry neutral safety switch
  3. Boat Life bunks, carpet or Felt??
  4. Which fuel pump?
  5. boat seems " not level starboard to portside"
  6. Lots of water in oil... stumped!!
  7. imco powerflow hitting power steering pump hoses....
  8. HP 500 fuel/water pump
  9. Warlock 25 SXT prop blowout
  10. Mercury Outboard Trim/Tilt
  11. Which oil thermostat?
  12. carb jetting
  13. Whippled 500 EFI Injector help!
  14. What size are nuts for Gaffrig gauge's?
  15. Carb Wizard needed...?
  16. oil temp, steaming oil...:-(
  17. Broken Valve
  18. What are these?
  19. Starting problems...
  20. 502 pistons
  21. 502 cracked block repair?
  22. Prop Washers
  23. Need Help ASAP...!!!
  24. stock 500 efi push rod lengths question
  25. Bravo Outdrive Oil Cooler
  26. New light mast / flag pole?? need a new one
  27. conditions that will trigger a CONSTANT alarm?? someone please help me???
  28. Trouble getting alpha lower in the upper unit
  29. Powermaster Ultra Torque Starters
  30. CMI Headers and drip
  31. LS V8 outboard
  32. Valve cover caps milky after 30 min on hose - condensation or something else?
  33. Amsoil Z rod
  34. Finally had time to go pick up my boat
  35. Had boat fixed, want to verify
  36. gauge bulbs
  37. BBC oil filter mounting
  38. Opinions wanted....MPI or Carbs
  39. cmi/merc
  40. over heating! HELP please!!
  41. Replacing External Steering Hose
  42. 140 or 160 thermostat
  43. Melted rubber exhaust hose replace with stainless?
  44. Anyone on merc-net now?
  45. starter fuse link
  46. 500efi oil cooler removal
  47. starter bottom mount CBB
  48. serial numbers ?
  49. What do you guys use on holes below the waterline?
  50. 3.4 merc outboard
  51. xr / xz
  52. thunder bolt modules
  53. Prop size mirages
  54. engine / coupler alignment issues..
  55. Opinions needed on rebuilt engine backfiring
  56. Mark Iv Bowtie Blocks
  57. moisture meters
  58. Refigerator Question
  59. speed of a 26' checkmate
  60. formula silent thunder exhaust tips
  61. 496 make loud tone when you trun key
  62. vinyl repair?
  63. 502efi VST Line routing/ locations?
  64. Raw water pumps
  65. Raw water pumps
  66. gas fill cap
  67. Gps Speedo
  68. Probably a simple question
  69. Computer HDD Data Retrieval
  70. remote on back of boat for radio
  71. What heads should i use on a 540cui
  72. estimated speed for baja h2x
  73. 7.4 MPI fuel system
  74. 496 ho water pressure tube ???
  75. Port gauges read low
  76. HOW much HP 604CI?
  77. 700 SCI fuel pump rebuild?
  78. imco valve covers clear T&D rockers
  79. block casting #'s
  80. 500 efi getting hot?
  81. Trying to find an oil filter adaptor
  82. machine marine steering upgrade
  83. Help! Smoke on the Water!
  84. Retractable ski pylon?
  85. 502 mag help
  86. Would you own a boat if it was cool and cloudy the majority of the summer?
  87. timing and jetting.... i need small adjustments
  88. Let's talk ignition systems
  89. 8.1 496HO cam swapping, factory cam gear-1 pink dot, crank gear-pink dot and divit?
  90. Houston we have a problem!
  91. Corrugated Marine Wet Exhaust Hose...??
  92. Garmin GPS TO GPS LIVORSI SPEEDO
  93. Aviation Gas 100/130 or Racing Fuel... Really?
  94. 548 running very rich.. Flame arrestor??
  95. oil temp sender location...
  96. Guys need some supercharger advice ! and boat information
  97. NGK R 5671A-9 plugs
  98. Coolant temp sensor
  99. Adapter for 1" hex to tapered 3/4" steering post?
  100. 454 Marine Power Question
  101. 502 MPI hard to start/won't idle
  102. gen VI cylinder head gasket
  103. Trim pump hose fittings
  104. 500 efi short block questions
  105. Ignition Help
  106. Base timing
  107. Max RPMs for OME PowerSteering and ALT
  108. 2009 700SCI low oil pressure warning
  109. water coming in WTF!!
  110. fuel psi on blown carb motor
  111. Engine temp spike
  112. fuel pump question
  113. Algae in fuel tank
  114. Bad plug wire
  115. problems planing
  116. 496 HO Power Steering Problems
  117. synthetic oil in 500EFI?
  118. No Ignition Mercruiser 350 Mpi
  119. 502 efi/mpi breaking up/ cuts out.
  120. HP500 dyno chart ?
  121. running a flexplate instead of a flywheel
  122. reflash a mefi 3
  123. Teleflex Extreme cable; long length needed
  124. Trim indicator cables -
  125. Am I over carbed??
  126. scarab 22 switch alpha to bravo any tips or thoughts
  127. Plexaglass canopy
  128. Looking for Colored Screws
  129. fuel system needs for 470-500hp setups
  130. oil
  131. Headers-use less water to make louder?
  132. Problem with starter grinding
  133. How do I find out who has the loan on a boat I purchased
  134. do a plug check?
  135. Stud Girdles
  136. Overheat issue…maybe
  137. How do i remove imco gimbal ring
  138. 496 Mag w/Whipple Stage II Stock Thermostat Safe??
  139. Power Trim Hoses
  140. Loose Steering
  141. Tulipped valves
  142. Trim tab starting height?
  143. Oil Temps
  144. So how do you think this 496 will run?
  145. Mag To Ho
  146. Has anyone tried these starters
  147. 2001 454 mpi timing
  148. Can a backfire damage a new starter?
  149. Adding anodes to K Planes.
  150. Corsa exhaust question
  151. cutting out
  152. Crankcase Pressure
  153. Add-on vs. full hydraulic steering
  154. scx/sc water pickup question
  155. Baby Steps, 1st Timer: 1990 Regal Velocity 230
  156. HP500 spark plugs
  157. Tight wrist pins
  158. How much HP will MercTrans take?
  159. Drive help and opinions PLEASE!!
  160. Prop ?
  161. Water leak
  162. Changing TBI to MPI
  163. What's my CFM
  164. RMbuilder phone number
  165. 420 Mega blower
  166. gil manifolds reversion?
  167. no trim under power
  168. boat has a leaning to the left issue and break in info???
  169. Mirage plus 25P
  170. 88 baja force 235 speed question
  171. Any help at all please!
  172. Outboard Help
  173. 700sci's starting hard
  174. 500 efi long blocks
  175. 496HO over heating
  176. Speed specs
  177. 525sc upgrades?
  178. Help!!!
  179. Plumbing question
  180. powder coating???
  181. snapped alpha one pinch bolt
  182. need hatch actuator
  183. TPS AND IAC cross reference
  184. 330hp 454 dies at idle.
  185. powerquest emblem
  186. Looking at 94 29 foot scarab just want some input
  187. Which is better?
  188. Uh oh. 106db. How to get to 86? Or at least 90?
  189. Windshield Trim
  190. 24' obsession torent
  191. Gotta vent ... literally
  192. 454/502 harmonic balancer
  193. Mechanical indicator on the drive...
  194. Fuel Pump & Oil adapter
  195. water pump/blown engines???
  196. Smaller family boat?
  197. Head studs hitting IMCO manifolds
  198. McLeod Booster Failure
  199. 500EFI Whipple idle problems
  200. Livorsi ll gauges
  201. 454 Mag MPI HP rating?
  202. MEFI 1 Tuning
  203. No spark from coil - low voltage across leads
  204. depth finder install
  205. Weird temp/gauge issue going on
  206. what intake you guys running on big blocks
  207. boat carpet
  208. 454 EFI VST Fuel Pump anybody?
  209. Keeps Throwing belt...
  210. Does 502 have rectangle-port heads ?
  211. Driving me nuts (condensation?)
  212. Ilmor questions...
  213. Wiring for tab pumps
  214. Trim control switch options??
  215. 454 chev build
  216. Scan Tool???
  217. Where is Dave_N???
  218. 500 efi erratic idle
  219. engine lacking power
  220. lighting headers good or bad?
  221. One side of 496 leaner than the other-
  222. K planes and trim cylinders.
  223. Engine oil pressure issue... opinions ?????
  224. Whats the correct timing and spark plugs
  225. 1 Drive stuck up
  226. Water in my TRS trans
  227. 525EFI Have Knock Sensor?
  228. Help ID'ing 6.2 MPI
  229. Cool lookin PFD's
  230. Weird stain on Vinyl HELP?
  231. new/rebuilt engine -new oilcooler=water oil mix
  232. 30amp to 50amp adapter marine vs rv
  233. steering problems
  234. Latham Steering
  235. Hatch actuator not working!!!! HELP!!!!!
  236. wiring diagram with sensor for 01' 496ho
  237. Engine starving for fuel?
  238. Gas Guage Doesn't work
  239. Trim Sender / Gauge All over the place
  240. Spark Plugs: What is everyone using?
  241. Need a marine surveyor in Palmdale CA
  242. Machine Shop recommendations in S.D.
  243. 525 EFI slow response??
  244. 496ho Lean burn
  245. very small water leak can i
  246. new 496 head gasket issues
  247. Unknown cam specs
  248. Tach does not look right??
  249. 454 Mag EFI Cyl Head
  250. SBC getting hot at high rpm
  251. 300x vs 300xs comparison
  252. hp500 ideling high
  253. Drive / coupler alignment issue is kicking my ass!
  254. 700sci loading Up
  255. old 502 EFI MPI Tuning Kit
  256. Tachometer calibration
  257. 496 Mag Black Soot on Transom Lots of it
  258. Help Diagnose 525 EFI Stutter
  259. Stagger stringer setup?
  260. new 502 engine.
  261. Orange Fluid on Blower Manifold
  262. Blue Hp 500 vaccum line question
  263. Temp sender???
  264. Garboard drain repair
  265. Cyclone Replacements
  266. Trying to standardize fluids between multiple boats (Volvo & Merc)
  267. thunder bolt IV timing questions
  268. 502 not pumping water out exhaust even with ears on drive
  269. Air fuel ratio...wet exhaust???
  270. Swapping steering
  271. Loss of Power at WOT
  272. 540 build help
  273. RPM differential
  274. What pitch should I use?
  275. Muffler adapter
  276. 1998 454 magnum flywheel problem????
  277. Raylar Kit Install for 496 HO
  278. 211 libb speed
  279. Is there an easy way to check Octane Level
  280. fuel ?
  281. fuel ?
  282. Mercury 525 EFI Water Pressure?
  283. 496ho alarm (i have scanner)
  284. Hot Engine Oil
  285. I think I finally pulled the trigger!!!!
  286. bad performance Wellcraft 233
  287. Throttle cables
  288. Knocking noise possibly in driveline.
  289. #1 cylinder problems
  290. Where to draw power for electric choke and fuel pump?
  291. Do you have to have the PCV in the intake HP500?
  292. Any Corsa 4 wire Solenoids for sale ??
  293. new holley carb plumbing
  294. Help Sync'ing Engines/Throttles at Cruise
  295. 557 vs big cubic inches
  296. MAP Pressure??
  297. 454 mpi idle vacuum
  298. Mercruiser 500 Hp Bulldog
  299. waste holding tank
  300. Muffler Question
  301. Hp 500 Fuel Injector wiring
  302. 7.4 mpi with 454 mag cam question
  303. Center console advice concept, glasstream, etc
  304. Crossover bypass routing?
  305. overheating then hydro-locking engine
  306. 496 HO Plug Choice - Confirm please
  307. Engine temp question
  308. 525 hesitation?
  309. Trailer Brake Issue
  310. best high speed bimini ?
  311. changing throttle cable throw 31 sonic
  312. Anyone using Cheap Ebay HEI distrubutors
  313. water temp all over the place
  314. Switching to a electric fuel pump..got question..
  315. Heat exchangers
  316. Scat 9000 Steel Cast Crank
  317. power steering help...
  318. fuel gauge
  319. Tachs Erractic
  320. K-Plane help
  321. Just installed a 496HO in an Formula 242LS, and the tach does not work?
  322. Amp
  323. New 540 with crossover hotter on starbord side
  324. 700hp scarab
  325. motor will only rev to 2300 RPM under load
  326. Dana Marine 4" s/s exhaust tips
  327. 496 mag ho rpm
  328. power loss--Hard starting after sitting for a hour
  329. 1987 formula 242ss speed problem.
  330. 525 Issues?
  331. Trim Tab Problems
  332. ? reprogramming old MEFI 1 and 2 ??
  333. Riser to ex tip mismatch - how far can hose flex?
  334. 496 raw water pump problems
  335. 454 loss of RPM
  336. water temp / oil temp??
  337. XRP fittings source
  338. coupler questions.
  339. Ignition Issues
  340. Need Help, old 502 EFI only 4950 RPM, rev Limit ?
  341. Powerboat shows on TV
  342. HELP. Backwashing 496 after impeller replacement.
  343. Jetting advice needed for 489 with Holley 800
  344. Need help with my gas hog(boat)
  345. CRT cordless rotary trim.
  346. 2000 Fountain twin 502's which prop goes where...stupid??
  347. New Tach Going Crazy
  348. oil pressure sender
  349. super charger
  350. Oil pressure problem need some advice
  351. motor stumbles and stalls out
  352. Hatch actuator
  353. Lightning Headers Vs Gil Dry Exhaust
  354. Question about a dipstick
  355. Brovo 1 - Reverse Problems
  356. MEFI-1 or MEFI-2 Cost?
  357. Carb HP500 Oil Overheating?
  358. How do I drive/fly my new Tunnel? 22' DCB (Daytona) with a 500 HP i/o
  359. Bravo 3 - no forward gear, gets stuck in reverse.
  360. Converting from MercTrans to BW c72
  361. Tighten to yield bolts - Re-use
  362. Everything completely dead... HELP!!!!
  363. Loose Flywheel Bolts???
  364. thermostat hole
  365. Oil cooler repair?
  366. Help, trying to convert from crossovers to thermostats
  367. NJ engine builders
  368. Gen VI 454 mag base timing.
  369. removing painted stripes/logo's safely
  370. stainless marine and takin a big gulp of water
  371. Cover, Sunbrella or Hot Shot or ??
  372. fuel level?
  373. engine alignment with offshore mounts
  374. Flywheel Issues
  375. Having trouble with circ pump hose with RPM AirGap
  376. Prop,s
  377. CMI Header Temp.
  378. Keith Eikert Oil Pans & a starter that fits it? anyone have Experience?
  379. amp question
  380. new outdrive?
  381. DUI Ignition
  382. Intercooler plumbing question
  383. Trouble with electric hatch actuators
  384. 496 just makes a click?
  385. One side running hot
  386. outboard guys steering question
  387. New Altenator
  388. Star Marine Depot
  389. Proper place to show my boat
  390. TQ on a mercruiser 425 hp?
  391. Subwoofer question
  392. Anyone have the ability to convert oil filter part numbers?
  393. Prop Puller - Stuck Volvo DP front prop
  394. buying a winterized boat
  395. bellows install question
  396. 288 Sunsation.
  397. Viking Boat Lifts
  398. Innovate LM-2 integration questions....
  399. Engine hard to start when cold
  400. question about sea pump?
  401. 350 Mag MPI High Oil Pressure
  402. SS Raw Water Pump
  403. Gil manifold riser gasket
  404. Jetting for Supercharged 502
  405. oil dipstick with aftermarket exhaust
  406. 525 Slow to respond?
  407. 500 efi motor noise
  408. Weird electrical problem
  409. marine a/c what refrigerant type
  410. Help!! Engine Demon's!
  411. water psi bypass
  412. stewart warner gauges
  413. Converting from points to thunderbolt
  414. TRS bell housing oil cooler??
  415. Ignition Module Problem
  416. wtb conversion stuff for mpi to carb
  417. Thunder bolt IV timing question
  418. Battery question
  419. 525efi timing problem
  420. Idle water pressure hp500's
  421. fuel pump cam question
  422. What a difference the right prop makes!
  423. Engines dies when shifting, need help here
  424. best cheap stereo
  425. Bowtie Vortec Heads
  426. quick fuel 830 carb???
  427. Water dumps
  428. Advice please. 496 water intake blockage.
  429. Trim adjustment.
  430. Trim gauge not working
  431. windshield part
  432. fuel pump cam question
  433. What heads for my small block
  434. Instrument lighting
  435. 496 mag sea water pump
  436. GPS units anyone running a GPSMAP 640
  437. Oil Change Pump
  438. Problem with my TRS drives
  439. Lightning headers vs Gil manifolds / risers - pros & cons?
  440. Is 212* rating for Fragola Push-Lok hose sufficient for oil cooler line?
  441. Livorsi leaking
  442. Maybe a dumb question but hey?
  443. I need some replacement coupler info!
  444. 496 mag non ho rev limiter
  445. oil temp sender
  446. carb set up help needed
  447. 500efi serial number location help
  448. BEST fuild to run in BORG W
  449. need new motor...compatibility vortec question
  450. Rev limiter?
  451. water pick up
  452. What are the right head bolts for my set up?
  453. polishing lower unit
  454. mpi to carb conversion
  455. epoxy, gel, fiberglass removel from old tabs?
  456. Differences between a 350 mag MPI motor and a GM 350 HO Ram Jet engine
  457. Boat Bottom Hook
  458. BBC Gen 6 manifold gaskets ?
  459. Trim rings.......
  460. boat covers
  461. Lowrance HDS 7
  462. fuel pump problem
  463. AN fitting and routing help...
  464. portable a/c
  465. Need some Help on Sluggish boat Please!!
  466. 6.2 / 377 merc
  467. Battery Help
  468. Moisture
  469. Tuning software??
  470. Gen IV 454 Cam Retainer Plate?
  471. Water Pickups
  472. 525 water temp
  473. 496 oil filter
  474. CMI rope seals dripping water????
  475. Getting really frustrated!
  476. 89 292 Deck Graphics Opinion.
  477. GPS/ chartplotter NEED HELP!
  478. Testing an ECT sensor
  479. Water in Engine oil Please help
  480. Motors are back in!
  481. Livorsi DATA TACH
  482. Four stroke outboard question
  483. Whipple Intercooler water PSI
  484. Oil Change-- Dumb Question???
  485. Clarion CMV1 - Anyone have one?
  486. Weind 177 - Merc 525... 80 W 90 ?
  487. thunder v ignition
  488. Any Mac tool dealers on here?
  489. cold water cold air cold motor
  490. fuel additive
  491. Need a little more POWER!! Help!
  492. 502 re-power options
  493. Compression test results and Gen V 454 Mag / HP425 Differences
  494. suggestions on pwer ugrade wanted
  495. Twin Drive alignment
  496. Gold Digger
  497. valvetrain geometry check - do I need shorter pushrods?
  498. Donzi 38ZX Electrical Questions.....
  499. 2 BOATS, same price, different years, 525sc or 500efi need input
  500. gfs 10