View Full Version : General Q & A




  1. Bleeding air out of steering system.
  2. Need help figuring out water diagram w new headers
  3. 1997 HP 500 octane reqt
  4. 496 Sea Pump Water Pressure
  5. NOS Blackhawk value
  6. In a bind with Trailer Trim
  7. operating @ wot????
  8. 7.4 MPI very sluggish
  9. Newbies questions
  10. 496 HO Electrical problems
  11. what oil to run in motor
  12. When heim joints go bad...????
  13. 320 efi
  14. 78 excalibur 454
  15. 31ft predator cat!! good deal?
  16. need assistance on a part for trim tab indicator please
  17. Number Of Hours Required?
  18. New Borla mufflers??
  19. Looking for a flame arrestor 454 or 502 MPI
  20. bravo cooling hose at gimbal
  21. warm motor boggs down...............
  22. engine hatch actuator help!!!!!
  23. 31ft predator cat. whats it worth?
  24. Stereo install
  25. what else to replace???
  26. 500 EFI Headers
  27. twin 300xs with different fuel burn?!?
  28. Does anyone make a pressure relief valve besides Mercruiser?
  29. 290 volvo hydralic steering add on kits
  30. 502 Mpi- Raise Idle ?
  31. Trim Tab Question..
  32. Exhaust Help
  33. 502 Mpi - Raise Idle ??
  34. One Motor Revs Higher When Trying to Plane
  35. 496 HO hours
  36. What Year was the last year for the 575?
  37. shift lever question
  38. stuck in gear
  39. Need a new cam
  40. motor cutting off
  41. Fuel Guage Pulse!
  42. 496 HO popping at 4000 rpms
  43. Weird Over-rev Issue
  44. 95 502 mpi cold start problem
  45. Wellcraft Nova
  46. 496 mag antifreeze leak
  47. Newbie questions - performance
  48. Carbs spitting while throttling up
  49. Coil Wiring? Thunder Bolt IV
  50. The most beatin into the ground question -- 500EFI Valve Springs
  51. 525SC tuning for 6K feet
  52. Alternate Alternator?
  53. 320 efi heads
  54. engine rebuilder
  55. Thunderbolt gear
  56. 330 454, heads shot, whats options?
  57. transom exhaust cut out Q
  58. Eliminator Daytona 24 handling
  59. Speedo quit working
  60. Hatch Lift Relay
  61. Fuel Pump Problems
  62. Oil Temp Sender Location
  63. Need to set valves and timing
  64. 502 MPI Tach Issue
  65. Engine will not start 525 sc
  66. 496mag repair
  67. need tach help
  68. Scratch Built - wiring Thunderbolt ignitions
  69. Ideas for a boat cover on a non conventional boat shape.
  70. Bolster Supports
  71. throttle plates, intake manifold are coated with a brown /tar/molassis
  72. Swim Ladders
  73. Backfire In Rough Water
  74. Headgasket thickness, how much is too thick?
  75. cavataion plate to bottom of boat distance?
  76. Cant get RPM out of a 454, 330hp
  77. CPProp Mode Switch High
  78. dart iron eagle heads vs merc heads
  79. Pro Charger Carb
  80. Which Marine AC to get?
  81. Testing fuel pressure on 6.2 MPI
  82. Nose Cones
  83. starboard 496 sluggish
  84. Bimini for 32 Foutain
  85. 502 mpi rebuild (used search/beat to death also)have some ???? lso) o
  86. SBC with a Wieand 142 blower ?
  87. Sound like vapor lock / water in tank / fuel pump?? - 6.2 MPI - Help...
  88. Oil pressure dropped!!!
  89. Best Floating Boat Lift
  90. GPS problem
  91. Strange Smartcraft issue
  92. thermostat change-out help needed!!
  93. Biggest cam/ Stainless Marine Std risers
  94. low water pressure fail
  95. Who has the best deals on flame arrestors??
  96. CMI hedder
  97. Cam information
  98. Bravo drive lube leak?
  99. 496HO....what oil
  100. 2009 Baja Outlaw versus 2010 Checkmate 375zt
  101. Bad relay base??
  102. Vibration While Trimming Down
  103. Can I use clamp on mufflers on my dry exhaust?
  104. Headers and reversion
  105. Stereo
  106. 496ho Water Drain Actuator
  107. Need help finding a new boat...
  108. ecm tuning
  109. Throttle handles
  110. Best place for impeller kit?
  111. Rinker Captiva 262 SS performance ???
  112. rusted plugs
  113. 502mpi questions
  114. trim guage problems
  115. 496 water impellar
  116. how much of a pressure should there be when inserting a gimbel alignment tool
  117. 496 is DEAD!!
  118. 454 Mag
  119. vortech supercharged 502 timing ?
  120. 500 efi intake porting
  121. thermostat help needed!!!
  122. Swivel shaft Specs
  123. Vacuum Pump
  124. Hours till oil change?
  125. Donzi Questions
  126. Carb issues
  127. Major Motor Problems
  128. 496 MAG died, crank sensor?
  129. rochester carb on a performer intake Q
  130. Help...Removing an aftermarket nose cone from a Bravo
  131. change from thru hull to drive water pick-up, speed ?
  132. rejet carb after emi thunder install?
  133. Coupler-does anyone besides Merc make these?
  134. GPS antenna battery
  135. max hp Mark IV bowtie block
  136. Stainless Marine Riser Help
  137. Cant get u-joint cups to go in!!
  138. Alternative Speedo Input??
  139. Patriot Alu heads on SBC
  140. Volvo Duoprop to Bravo 3 Question
  141. What all would take out a coupler?
  142. GPS battery
  143. Interior cleaning
  144. Trim tab selection
  145. *****Intake manifold question*********
  146. Sea Water Pump rebuild question
  147. 454 oval or rec port heads
  148. Trs Gimbals
  149. Ignition timing retards
  150. 454 heads
  151. install amp in engine bay compartment???
  152. 496 HO water leakage mystery
  153. Newbie need prop size help!
  154. How far out would you trim a 32 fever
  155. Wht is this??
  156. rings did not seat
  157. Adjusting Throttles ??
  158. Props
  159. New boat, flush questions
  160. Fuel Pump/Fuel Problem
  161. Envision 3200 XS questions
  162. water in Valve cover and Cylinder #1
  163. Need help with an alpha I gen II drive
  164. motor stays running with key off
  165. 454 Build up
  166. milk and reversion
  167. power steering
  168. Popping out the exhaust
  169. fuel pump(s) for 1000/1200hp...help.
  170. Tach Wiring Question
  171. Gauges help needed
  172. oil temp sending unit on Fountain
  173. motor running rough threw code cam sensor fail
  174. What Color is your Drive Oil
  175. Radio issue...
  176. Dextron III in a Velvet Drive...?
  177. 350 Mag Services Manual
  178. New 489 Blown Head Gasket After 2 hrs run time
  179. Blown Head Gasket After 2 hrs run time
  180. how much to build a 496 stroker?
  181. Fuel Regulator Placement??
  182. Any Landscapers around, got a trimmer related question?
  183. 496 MAG HO heating problem
  184. Fuse for accesory power outlet plug
  185. push button shift on Merc trans
  186. how do i post pics
  187. Temperature problem with 454mpi
  188. Can You Convert A 1994 502 Magnum To Carb?
  189. Problem 496 MAG HO with whipple
  190. computer/ecu no good? 502 mag. help please!!
  191. Erratic oil pressure above 4300RPM
  192. stuck engine hatch on 32 fountain fever
  193. New bilge pump not working
  194. Outboard stalls after hot restart
  195. Drive Oil Analysis Lab
  196. GPS question
  197. Ballast Tank Question
  198. Fire Extinguisher ?
  199. 1994 502 Magnum Runing On 4 Cylinders
  200. holley electric fuel pumps
  201. Which HP500 intake gaskets
  202. bad vibration when turning or with the drive tucked in all the way?
  203. Livorsi Speedo quit
  204. Trim tab Indicator
  205. purchacing dry exhaust
  206. New engine tuning
  207. trim limit help please
  208. quicksilver shifter ?
  209. Merc 502... Can I just use a truck starter or is it not the same?
  210. Lake Cumberland
  211. Water pressure guage on closed cooling 525
  212. Gaffrig tach calibration
  213. anode question
  214. Bunk Carpet
  215. Gel coat supplier
  216. Thunderbolt ignition tach wire.
  217. Mufflers for Dry Exhaust
  218. Fuel Pressure Problems
  219. What should fuel pressure be?
  220. Is there an adapter to put 5" hose on a 4" tailpipe?
  221. Timing on a supercharged small block
  222. Bennett trim tab help please
  223. Wema fuel level sender trouble
  224. valve lash
  225. Problem with my 454 Please Help
  226. 91 Octane or 93 Octane w/ Ethanol?
  227. drive swap info
  228. 496ho high idle? please help
  229. Question???
  230. Running lights/Blower causing boat to run like crap
  231. Anyone have troubles with Morel hydraulics?
  232. 575sci with intercooler and 871 upgrade
  233. JL 770 question
  234. pwr strng pump
  235. Motor Surging
  236. Low Compression #4 and #6
  237. Average build time for engine?
  238. Rebuild 502 or repower with 525
  239. MSD Distibutor HELP!!!
  240. More from a 350 mag
  241. Painting my Imco Extension Boxes.....
  242. Old dried up fuel tanks
  243. engine RPM with 25 mirage plus
  244. Need a part description & where to find?
  245. Timing help
  246. gen 6 502's what are they worth/trade
  247. can't get over 3000 rpms on starboard motor
  248. Fuel additive...yay or nay???
  249. timming jumping all over
  250. zero effort shifter cable installation
  251. engine help
  252. 6.2 bearing failures
  253. 454 mpi ps pump
  254. 496 alam every minute
  255. question about drives and lower units
  256. One engine down on RPM at wot
  257. Mercruiser Slow Acceleration Only
  258. Battery Draining
  259. what oilpan for 383 stroker, stock is hitting !!
  260. how much hp 454
  261. Mercury 600sc stalls when shifting imco sc drive
  262. Power Steering turns left, but very hard to turn right??
  263. Best Method for Charging Batteries?
  264. Water Pressure Guage Doesn't Work?
  265. Fuel fill line
  266. Boat pulling to left
  267. xr cavatation plates
  268. 525 vs 496- How many Hours until rebuild?
  269. Fuel Problems. what am i looking at?
  270. Cut filter, have questions
  271. Livorsi Speedo, Garmin antenna
  272. Loss of power/engine coughs then dies
  273. New 525 efi overheating
  274. need muffler
  275. anyone know where to get brass freeze plugs for a 502 ?
  276. engine parts
  277. 598 thoughts please
  278. alternator wiring help
  279. 525 EFI plug fouling
  280. Where to START! Breaker keeps flipping OFF
  281. rooster tail
  282. Timing Issues
  283. trims wont work seperatly
  284. Thanks again RAYLAR
  285. white sludge / film underside valve covers
  286. Holly Carbs New Models
  287. Looking for 2000 Wellcraft Excalibur Windshield
  288. Have you ever had to adjust the camber on your trailer axles?
  289. Pcv sizes
  290. Help! Sneezing and popping coming on to plane.
  291. scanner and workshop manuals
  292. Ignition timing
  293. oil cooler pluming
  294. cut back risers?
  295. Need ideas on how to mount wind deflectors
  296. Trim Tabs drawing power when idle
  297. Timing a Thunderbolt ignition question.
  298. Gps
  299. Mercury systemview trim indicator function
  300. How many hours is a lot on a merc 454?
  301. Tune-up on 7.4 MAG
  302. Running Hot-Help, I need to fix this tomorrow morning!
  303. Gaffrig GPS speedo intermittantly working
  304. p/s pump fitting??
  305. 502zz cam w/ 496 manifolds
  306. 454 Mag Timing
  307. Cam question for water reversion
  308. DPX problem.
  309. How to I.D. Ignition?
  310. TB IV and msd blue box
  311. how much are these motors worth??
  312. water reversion ?
  313. Help With Gauges - Tach Works Randomly
  314. Why so many bb's vs. sb with procharger??
  315. Frozen 500efi... Now i guess i get to build a new one;-)
  316. 25 sunsation impeller change ??
  317. Charging issues
  318. How is water getting in the cylinders of my 496Mag?!?!
  319. Hydraulic hatch cover wont lift *formula boat
  320. gas gauge quit working
  321. Synthetic for an older motor?
  322. Best Oil for a Merlin long Block 540??
  323. Adding 2 stereo batteries
  324. 97 454 Mag stock oil pressure?
  325. alpha one whining
  326. powerglides with twin diesels?
  327. 575sci Intermittant RPM hesitation??
  328. Gauges ??
  329. Oil pressure gauge fluctuating above 3000rpm!!!!
  330. Broken Exhaust Valve Guide SBC
  331. Canfield stud girdles?
  332. 502mag and msd tach adapters:
  333. Stand off box, when do you use them, what size of boat?
  334. HP500 16535 Hydraulic Roller Lifters Cross Reference
  335. RPM issues
  336. oil sandwich adapter
  337. bat boost components
  338. 525SC Stock Jetting?
  339. HP500 Headers and bored over jetting change?
  340. Stock Chevy 454 Timing.
  341. replaced tbolt v with d.u.i. and cant get tach to work
  342. Reverse Rotation Engine
  343. Tb Iv - Help!!!
  344. Fuel Pump Mech. GPH ? which one
  345. 454 mag lean? need advice on what to do
  346. Boat position on the trailer and slings usage
  347. Prop Selection Help Needed
  348. Stock factory hydraulic steering arm leaking
  349. J.c. Marine,,,496 Impeller Kit
  350. prop
  351. I Need a Set of BBC AFR Heads for 598ci. Supercharge
  352. Another Holley Idle Thread - I'm at wit's end!
  353. oil temp sensor placement
  354. Missing alarm check - 496 HO
  355. Speedometer not working with IMCO
  356. 502 MPI hard start when cold
  357. 700sci IAC Fault Code
  358. Air Gap Intake Manifold
  359. How to tap 502mpi fuel rail?
  360. Can't get engine to warm up.
  361. Captain's choice wont stay open
  362. oil line size
  363. 502 -99 wich gasket?
  364. water in oil 454
  365. Constant tension hose clamps
  366. Outdrive Jacks and Stands
  367. msd problems
  368. Exhaust Diverters
  369. Oil T-stat selection and plumbing
  370. Valve guides for Mercury Racing 525 EFI
  371. X-Dimension Help
  372. 4.3 missing
  373. 496 Poppin through exhaust
  374. Blower motor
  375. 502 Ecm
  376. K K Tab Cables???
  377. Ran above 4000 rpm, overheated
  378. Scx Oil
  379. Arneson single cylinder steering
  380. What size/brand line on your box anchor?
  381. New Sarter Motor Or?
  382. batterys
  383. Any idea where these wires go
  384. Bennett Tabs?
  385. bimini top
  386. Special relay for engine hatch actuator???
  387. thermostat housing issues..
  388. Urgent!! Please Read!!
  389. 500 efi rough idle- surge
  390. fuel pressure problem ?
  391. Max HP for Stainless Marine Exhaust
  392. short block or complete???
  393. 525s vs 700
  394. Did I Undercarb my 489?
  395. Seating Capacity 87 Nova III?
  396. 525 Timing Adjustment
  397. B 1 drivr to a XR
  398. Carb/Fuel pump Help
  399. K&N VS. Gaffrig style
  400. Fuel Problem
  401. whats less room on a blower motorI am
  402. Trim Pump Dipstick??
  403. rubber flooring
  404. 502 mpi Fuel Pressure- need help
  405. Steering Helm replacement
  406. Black full cover How Hot?
  407. were to buy new cockpit cover
  408. hp 500 carb jet sizes??
  409. Steering control valve, Saginaw valve
  410. Busted Trim Tab plane
  411. 454 gen 6 H
  412. roller rockers and tall valve covers
  413. 420 Mega Blower B&M
  414. smartcraft
  415. 27 Series Deep Cycle for starting
  416. Baja 250 sport engine throttle cable question.
  417. Plug wires
  418. Converting from 502efi to 525EFI
  419. Can somebody tell me what part I need?
  420. heads? cam? small block stroker build
  421. Costs to rebuild Upper drive Bravo One X?
  422. Wire Size
  423. merc fuel cool system
  424. 525 Problems
  425. Shifter/throttle help
  426. 3X18 Oil Cooler Help
  427. 1987 Baja 240 Sport Hatch Lift
  428. k-plane mounting
  429. Priming Oil Pump
  430. Anyone heard of Xtreme Custom Boats??
  431. Any Jet Boat Techs Here?
  432. What in a Holley carb would cause a mid range miss?
  433. 525 sc Thermostat
  434. Livoris to Garmin
  435. Needed Vst Pump Asap
  436. where to be 140 Thermostat 7.4 mpi 1999
  437. Rebuilding A 525 Efi
  438. Carb size
  439. Fixed vapor lock 454mag mpi's with VST
  440. Mechanical Oil Pressure Gauge
  441. Mercury "O" ring sealant ?
  442. batterys
  443. Best Battery Setup??!!
  444. Fuel mileage 454?
  445. Gen VI 500hp
  446. Hawk 525sc oval port intake with rectangle heads
  447. 502 Mpi Problems Help!!!!!!!!
  448. HP nearly stalls when throttled back to idle
  449. Cmi Etops
  450. who makes a trans for torque 1375 hp
  451. props
  452. need help choosing prop for baja sport 250 with 450hp
  453. Feeler: Whats it worth? 1995 454MAG EFI 120hrs Complete
  454. steering wheel out of center
  455. Holly Marine fuel pumps.
  456. 7.4 Liter vs 6.2 Stroker Rebuild - Need Advice!
  457. Idle adjustment
  458. Baja 240 rpm question
  459. teach me about tunnel tabs...
  460. Help with Merc 5.0 cooling issue
  461. 496 HO Oil in coolant issue
  462. 496 HO Warning buzzer issue
  463. stepping The hull
  464. 825 mighty marine demon
  465. sea doo techs??
  466. K-planes
  467. 496 H.O. and Boost pump
  468. drive couplier
  469. mercruiser lower shift cable
  470. VHF Radio
  471. Exhaust Temp
  472. broken motor mount bolt
  473. engine builder or mechanic in ct
  474. temperature problems
  475. 502 MPI hard start, water temps, steam, riser temps ???
  476. hp 500 carb leaking at throttle shaft
  477. holey or bg demond
  478. holey carb gurus
  479. 525 EFI Service intervals -When and what is recommended
  480. How much water presure is to much ?
  481. Whipple intake manifold.....huh?
  482. Best Engines :-) BPM or Crusader ?
  483. 502 hole in piston, oil everywhere
  484. Intermitent whine around 3000 rpm
  485. Engine Serial Number
  486. Corsa Q&Q+ trouble shooting
  487. Power steering weak??
  488. Vibration / U-Joint / Gimbal question - BIII
  489. Trim Tab Size Question
  490. 496 Mag Rich at Idle & Feels weak over 4k
  491. Floating Boathouse
  492. Nose Bleed Supercharger Boaters?
  493. 502 mpi Fuel Pressure Regulator Question
  494. Idle RPM
  495. 525SC Spark Plugs
  496. 87 Pachanga 22 props anyone?
  497. Newbie Outboard/GelCoat Question?
  498. 502mpi Vapor Lock
  499. Power Steering/ Steering Cable???
  500. steering ram size question