View Full Version : General Q & A




  1. Mefi 3 ??
  2. 502 dies at wot
  3. Help Please!!!! 88 Four Winns Liberator 211 is SLOW!!
  4. Oil Temp Issues
  5. Another 525 Header Issue
  6. 496HO: would IAC cause this? 1 engine lagging intermittently lagging 100-400 RPM
  7. 525sc idling at 180* rising to 210*
  8. New GM 502 Vibration above 1500 RPM
  9. Whats TO HOT FOR OIL TEMP
  10. Right thrust washer? Hub?
  11. Firepower control box
  12. Gen 4, 5 and 6 GM heads same plug reach?
  13. over cam'd motor or pump problem?
  14. Need help with Kohler 5ECD Generator...
  15. Russel Performance AN swivel fitting leaking
  16. A/c unit help
  17. 350 mag mpi won't turn off???
  18. is this a sign that the hull was rotten?
  19. 2 Alternators to choose from
  20. blower size help
  21. Replacing stock thermostat housing with Stainless,,,,,
  22. Mercruiser silent choice
  23. How often to clean the air intake 7.4 mpi
  24. Mercruiser Rev Limit Ignition by Firepower
  25. 496 whipple boost
  26. Cigarette 24 info
  27. Led Cockpit lights
  28. Exhaust Problems
  29. Cobra outdrive not pumping water
  30. Trim not moving evenly
  31. 502 water reversion
  32. Ultimate Warlock 24' Euro
  33. Alpha hit something no forward or reverse
  34. FAST Programmable EFI
  35. Oil foaming out of lower unit trim pump reservoir only while trimming lower unit.
  36. Loose/missing exh flapper
  37. Engine won't get boat on plane - ignition issue?
  38. blown 900 ate a distributor gear over the weekend, what now......
  39. Cost to rig a new hull?
  40. Outdrive Control Box
  41. 502 ss trying to get a hold of u bro ??
  42. Morse Controls
  43. Mercruiser Head Gasket Sealing
  44. Why no oil cooler 350 mag MPI
  45. Go Fast needed for a wedding
  46. Noise at Higher RPM's..... Details inside
  47. Rooster tail fittings on Normal drives - What and where?
  48. Removing compass
  49. Another water in oil milkshake thread
  50. Water in motor..need help fast!!
  51. Head Gaskets...head bolts..
  52. Baja 252 motor help
  53. When started, EFI motor will not idle below 3000 rpm
  54. Smart craft trim limit switch
  55. steering question
  56. Serp belt tension
  57. Lubricant for silicone exhaust hose?
  58. Painted boats hull cleaner?
  59. Scratched CMI polished Sport Tubes
  60. corsa solenoids ratling when diverted to prop
  61. wiring questions
  62. timing chain question
  63. transom assembley help
  64. Pondering the thought of doing a LS motor.......
  65. Any wlders in the house?
  66. Junk VST Electric Fuel Pump
  67. Hardin Gen 7 Sea Pump Install
  68. Motion actuator for power bolster seat, I need one from a Fountain or other boat!
  69. New engine ready to fire but WONT! Expierenced techs Please Help!!!
  70. Steering leak at the helm
  71. Boost referencing carbs
  72. recommended manifolds for 540 tall decks 600hp innovation marine
  73. twin engine fuel burn from side to side.
  74. Drain plug adapter
  75. 496 ho
  76. 03 496 ho double beep
  77. Horrible Idle on a holley 800..
  78. Smallbock oil adapter
  79. WTF,, does anyone make a tall life or ski vest for guys 6'-6'+
  80. 900 low oil pressure and cold filter after oil change???
  81. Recommended GPS with depth capabilities ?
  82. more HP for 502 mpi
  83. Lake Texoma Eating
  84. Running rough at low RPM after warmed up
  85. HP500/ BBC short water pump part#
  86. 502 MPI Surging over 4200 RPM
  87. New Oil Coolers? Yes or No?
  88. Gaffrig oil pressure sender
  89. Merc 7.4 Gen V clicking noise
  90. FAST Air Fuel Meter??
  91. RPM Drop in 1 Engine
  92. 12V DC Air Conditioner - Anyone have any experience with them?
  93. 496 with Whipple
  94. Gen IV Heads On Gen V Block Coolant Port ?
  95. Ethanol resistant fuel line?
  96. motor swap, now gauges dont work
  97. flame arrestor
  98. kiekhaefer trim tab manual or information needed...
  99. Throttle response.
  100. Anyone noticed slower speeds with the higher air temperatures?
  101. Heat Alarm wire..
  102. 1999 Donzi 26ZX performance results with new 502
  103. 600sci Impeller DIY?
  104. Replacing trim and drive indicator cables on Bluewater Performance panel HELP!
  105. Who designs custom dashes for older boats?
  106. Seeking a brochure for a 20 foot Cigarette
  107. Cast Iron manifold -> Stainless exhaust pipe
  108. Valve cover removal with exhaust on?
  109. Mando alternator wiring....
  110. Merc Racing 525EFI. SAE or Metric fasteners?
  111. Dana Exhust
  112. Replacing 502 with 496s
  113. Replacing 555 on 496 with MEFI Controller
  114. Exh manifold leak test w/acetone
  115. single 4150 fuel feed recomendations
  116. running hard with or without Silent Choice open
  117. This pizzes me off! Who is CP performance trying to kid
  118. Size of hose on speed master 3
  119. Swapping to a sea pump on sbc...
  120. anyone have 500efi valve cover baffle pics?
  121. fuel/water separating filters
  122. Pump size nozzle on a stock HP500 holley 850..
  123. Sierrs f/w sapartor
  124. Temp problems with 27' Advantage Victory
  125. Mefi 1 ecm bad, ideas??
  126. Need some help guys! Just bought a new boat.
  127. Dual Carb Adapter Gasket On Blower ?
  128. Skag repair on Sportmater lowers
  129. 1997 Gen VI MPI
  130. L-29 heads question?
  131. 7.4 MPI Vapor Lock and "jip joint gas"
  132. Oil cooler location and funny story
  133. exhaust manifold
  134. Oil Cooler Line Diameter
  135. 454 massive carbon build up on spark plugs back of the boat is covered in suit
  136. best prop for 26 Daytona
  137. 7.4 330 oil leak under power?
  138. Baffled by apparent reversion issues with Lightning headers and mild cam
  139. Changing oil with engs out
  140. Motec display with smartcraft?
  141. 525sc died at 70 mph no spark
  142. Bravo one trimming noise!
  143. Holley power valve sizing.
  144. ( A/F ) air fuel ratio for NA 350 vortex
  145. 330hp to 350hp vortec 454
  146. Engine Weight ?
  147. Fuel leaking out of vent ??
  148. Engine Oil Overfull (Due to extended high RPM runs)
  149. Intake Manifold Oil Leak?
  150. 4 Blade vs 6 Blade.
  151. Geico, Seaworthy Ins, Any Horror Stories?
  152. auto technician needed
  153. trouble with 525 sc
  154. looking for two pair of 4.5 flapprs for myexaust p
  155. 2004 47 fountain oil pressure sending unit
  156. Need opinions/suggestions 12volt battery system
  157. 525EFI water pump
  158. Gil Oil coolers
  159. Turbo question! Advice needed
  160. Dyno Day! Question for engine builders - A/F correction factor for dry dyno headers?
  161. 496 HO 2004 - Shutting down when throttling down
  162. anyone running a 5 blade with 525 efi?
  163. Corsa switchable exhaust swap.... Baja 272
  164. What are they worth?
  165. Ocean Marine AC unit reading HPF???
  166. Recommended oil for my 7.4
  167. Need advice about sea strainer on a superboat
  168. U joint shaft bravo2X
  169. 01 38 fountain lightning gen iv bbc what couplers and housings
  170. Anyone bought a new oil cooler that had something rattle in it?
  171. Power Steering Pump Pressure for Ram
  172. Where can I find a eddie marine part that is no longer made....
  173. Fuel Gauge...
  174. 525 Mercury Racing Engine pulling back once it hits 4200 rpm
  175. lying to your insurance company? ??
  176. TB IV and V ign info
  177. Where to place AFR sendor Or Stanless Marine Exhaust
  178. Backfire through exhaust on initial startup
  179. Hardin marine ?
  180. Spun Prop What Else to Look For
  181. EMI risers, cracked one
  182. 99 formula twin 7.4 mpi bIII vibration/hesitation help
  183. motion 30 vs spectre 30 ??
  184. how to I.D a 454 Magnum
  185. How reliable / durable is the Merc 6.2?
  186. Lost oil pressure
  187. Engine rotation
  188. Comp cams 212 Timing cover
  189. Drying out cabin carpet ??
  190. 502 mpi thoughts on pitching injection and going with the carburetor
  191. WPM Steering
  192. 144 blower on stock 350
  193. Oil Temp Question
  194. Here we go! blew up a blower motor
  195. Owners manual, 1991 Sonic 31'???
  196. Overheating problem-more challenging than usual
  197. Corsa quick and quiet exhaust mufflers
  198. gages
  199. Why jetting so staggered with a single plane?
  200. Anyone want a 2012 38' Powerquest? Looks like an auction for unfinished boat
  201. Carbureted 502 MAG Timing And Fuel Help Please!!
  202. Hardwall water hose
  203. Fuel pressure on carb 454
  204. MLS or Performance head gasket
  205. Dyed vinyl question
  206. 6.2 engine torque?
  207. Compression Test
  208. Finding Taco vinyl rubrail insert
  209. Stainless Braided Trim lines and Kplane line extending
  210. Problem !! Electric gremlin I think.. Help..
  211. Correct Flywheel??
  212. 496 Mag HO Rev Limiter ?
  213. Help with Warlock Performace Machine steering ram
  214. 7.4l 330 hp needs a new carb what do you guys suggest
  215. Replace silent choice on my scarab? or keep replacing seals?
  216. ethanol fuel messing up Gas Tank sending unit???
  217. Fuse or not to fuse "That is the question"
  218. Looking for Some Insight on Merc 500 EFI
  219. Where can I get exhaust block off plate
  220. 496 vs 540
  221. O2 sensor without drilling and welding Lightning headers
  222. hydrolic steering question please help
  223. 502 not firing on all cylinders/raw fuel in exhaust
  224. 502 MPI Cool Fuel vapor lock - other options than new electric LP pumps
  225. welding Lightning headers
  226. carbed 454 mag will not idle
  227. Aeromotive Fuel Pump issues
  228. BBC physical size
  229. best exhaust for the dollar
  230. Power steering ram leaking.. need help on finding parts
  231. baja to a sea ray
  232. 496 whipple loading up on idle
  233. Newly rebuilt 525efi will not fire... help!
  234. best place for hp transom assembly
  235. Engine shudders and sometimes stalls when Bravo 1 engages fwd/rev
  236. CROSSOVER help..yes another crossover question..
  237. Stellings Greens VS CMI Etops
  238. what heads 308 darts 290 or 305 afr heads
  239. gen v info?
  240. What makes a "fast hull"
  241. 525 sc ?
  242. Mercruiser 502 EFI stalling question
  243. performance gain???
  244. 500 EFI Issues. Wont Stay running......PLEASE HELP!!
  245. Battery Selector Switch??
  246. Does a K&N spark arrestor help or hurt? 500hp
  247. New water pump done. Problems?
  248. Gen iv gen v whats the difference
  249. Taco Part
  250. Where can I find plastic mipples that go into valve covers for venting??
  251. New or old style head gasket EFI 500 .
  252. Idle poblems 502 mag MPI. Please help!
  253. Please help identify what kind of boat this is!
  254. EMI Thunder Exhaust Manifolds HP limitations?
  255. 496 Mag water pumps not priming with new impellers. Time for new pumps?
  256. 502 mag part # please
  257. Battery Question.?
  258. 383 build opinions
  259. need help with 525 sc engine not going over 5000 rpm
  260. stelling header tails
  261. Changing Gil exhaust from wet to dry pipes
  262. iac duty cycle numbers
  263. Mechanical fuel pump, need some help
  264. Carb Spacers, Whats the low down on them?
  265. Mercruiser Fault Codes??
  266. Need help help
  267. 1978 python boat
  268. Lake Tahoe mechanic needed
  269. Where not to buy boat parts
  270. How to identify Merlin heads....
  271. Mcleod bolster switches.....
  272. 502 MAG not advancing
  273. Wiring up a 10 pin harness in 88 formula help
  274. Need input if anyone has experience with Competition Products crate motors.
  275. Stuck Steering Wheel, HELP
  276. Anyone had oil starvation issues running screens in the lifter valley?
  277. Dire need of an accessory drive pulley for weiand 177
  278. Need help troubleshooting vacu-flush ??
  279. Closed cooling help... wont come up to temp
  280. Mefi 3 idle problems/throttle ??
  281. gen v head swap
  282. Vapor lock fixed for good boys and girls
  283. Power steering cooler needed?
  284. MSD Dist cap center post Failing????
  285. Mounting exhaust tips?.???
  286. Help, Motor won't start. Merc 454 Mag EFI
  287. nother power steering question; fitting sizes...
  288. Looking for surveyor in Chacago.
  289. HP500 water plumbing
  290. Water / oil temperature 35 Cafe racer
  291. outdrive anti-foul spray paint.
  292. Tuning For E10
  293. Engine heating up
  294. New heads
  295. replacing eddie marine manifolds with gills.
  296. 88 top gun fresh water pump location ?
  297. need help to set rpm wire
  298. Drive trim cable set-up
  299. Gen iv 454 365 mag camshaft?
  300. Tech started smoking, and stopps motor???/
  301. 500EFI Throttle position sensor
  302. bravo 1 top cap
  303. 454 Mag Spark Plug wires
  304. Hardin Marine "XS" oil pan install
  305. 525sc pulley
  306. K plane mounting pins frozen
  307. Eliminator Eagle
  308. Closed cooling system
  309. Coil on Plug
  310. EFI tuning question
  311. Single shifter to Dual what ends/calbes needed?
  312. Bad Head Gasket or what ??? Help
  313. Can't' Keep Drives and Tabs Synced with Gauge
  314. Cam and exhaust set up question (reversion)
  315. Can't' Keep Drives and Tabs Synced with Gauge
  316. formula f302 bravo conversation
  317. Warm alternator when charging
  318. Steering Actuator
  319. Who else sells a dual water dump
  320. Blower Information Stamp ?
  321. Strange sound when priming oil pump
  322. CV Products GEN V replacement fuel pump
  323. which oil filter do you
  324. Fuel filter location
  325. Rear Engine Accessory Plate?
  326. Best flowing fuel filter/water separator
  327. first post!! windscreen for baja
  328. help with set up 27 warlock
  329. headers/tailpipes not aligned
  330. excalibur lovers....
  331. Side mounted gas tanks pulling unequally
  332. cause of accident off marco in 2007 ?
  333. Drive oil reservoir swap
  334. 502 to 540 build
  335. 500efi fuel pressure
  336. Classifieds?
  337. heads
  338. Anyone using the Hardin Marine Water pump on LS Motors?
  339. 2001 Wellcraft Excalibur 26 - could anyone please urgently help with a picture?
  340. Two trim pumps, one slower on trim out? ITS XR drives
  341. 7.4 Thermostat housing old or new??
  342. Mooneyham snout and coupler question
  343. Bimini Cover height question
  344. Mercruiser 454 HP425 engine siezed - help!
  345. 454 has ticking noise
  346. To stat or not to stat that is the question
  347. HP500 Fuel Pump?
  348. looking to purchase bravo 1 lower and upper housings only?
  349. best overall spray detailing product?
  350. B&M 250 Blower
  351. Where to connect water press hose on A 525EFI?
  352. Stainless Trim Tab Ram
  353. Rigging experts, I have a question
  354. Anyone using a dry sump oiling system? Need some pics.
  355. valve seals
  356. School me on sea pumps
  357. length of exaust
  358. Who makes this cross over
  359. 2 Quart Filter with Anti Drain Back - Where can I get them?
  360. flywheel vs. flexplate on small block alpha
  361. 496 mag getting hot at idle only
  362. Trim pump tech
  363. Whats it worth ?.
  364. What is a bussbar for? seems like a waste
  365. 500EFI fuel pump test
  366. refreshing the twins (454's)
  367. Glue for bunk carpet??
  368. What happened to kidapache
  369. What coupler for 600+hp
  370. Any ole school merc techs on here?
  371. Silent Choice won't open
  372. Tough gear shifter on my Bravo I any remedies for this
  373. Use "The Right Stuff" in place of circ pump & t-stat gaskets?
  374. Late model vs early model MerCruiser Sea pump question?
  375. Power steering question.....short or long water pump pulley
  376. torque lbs for speedmaster transom assembly
  377. Newbie question bravo steering actuator
  378. Crossover questions...done some searching already...
  379. Shiming bbc oil pump question
  380. 525 idle missing intermittently
  381. 496 Mag spark plug wires
  382. Livorsi tachs
  383. port window clips
  384. 502 MPI Temp Sensor
  385. Removing Corsa Mufflers Need Help Removing or Gut Them?
  386. Which route to go on hydraulic steering?
  387. How much horsepower to go up a prop size
  388. Freshwater pickup.....transom or bottom?
  389. where to get power for elec choke
  390. Retorque head studs after fixing leaks?
  391. What fuel would your run
  392. Valve Cover vent fitting
  393. Milkshake
  394. Throttle and shifter adjustment 1999 26zx?
  395. Bravo 3 tilt switch R&R
  396. why has this been on the market so long ?
  397. Where to Purchase Trailer Bunk Carpet
  398. 280 k planes, what hardware for mounting?
  399. HP500 wiring diagram
  400. Max rpm for using thru-prop exhaust?
  401. Maximum speed with bimini top?
  402. Bravo y pipe weight?
  403. 525 efi rebuilds
  404. Hydraulic Steering Setup
  405. 525 EFI - fuel filter
  406. Weldwood glue for carpet
  407. 525 EFI - Coolant Change
  408. 525 EFI alternator connector ?
  409. what size carb for mercruiser 350 magnum
  410. Another LivorsiGaffrig GPS battery type question
  411. Water Pressure
  412. Dumb? Trim Question
  413. Bennett Trim Tabs not working
  414. Drive Shower Pickups-- Prop Rotation
  415. Sea Water pump rebuild
  416. What am I getting into with a 1998 47' Fountain Lightning that needs new STRINGERS???
  417. water in intake manifold
  418. 575sc blower
  419. Fuel line from duel feed holley
  420. Bravo 3 tilt limit switch
  421. Untra saudade
  422. HP500 Valve spring change....
  423. motors once again shutting off
  424. Props
  425. please help !
  426. dyno exhaust ??
  427. 525SC with crossover...how to route hoses what Tstat housing?
  428. Transmission on 1999 Merc Mag 350
  429. Spark Plug Recommendation
  430. 525 2 stage sea pump vs single stage ?
  431. 2003 Baja Brass boat plug and plate
  432. Lube point 502 Mag
  433. merc manual
  434. Anyone had issues with burrs in the lifter bores on GM Gen VI blocks?
  435. Engine flush kits...
  436. 1997 Falcon 2500 CD
  437. Mounting sea strainer
  438. Replacement of 502 mag mpi heads
  439. 454 mercuiser MPI thermostat
  440. Wiring/ rigging ? Breakers
  441. 502 mpi vortec adjustable fuel pressure regulator
  442. 525 EFI clone
  443. Shifter question
  444. Why this cam in a 420?
  445. 1998 22' scarab owners manual
  446. MSD vs. Mallory electronic
  447. exhaust tips with big turndown
  448. Bravo cut away needed
  449. 454 mag valve interference
  450. Gas shocks (struts)
  451. Heads port size
  452. differance between 365 and 420's
  453. Rebuild 575 SCI's and add closed cooling system
  454. Pin out sheet needed mefi 1 to mefi 4
  455. Information on 31' Aerotech with Twin 600Hp engines
  456. GPS Chartplotter
  457. Another dyno session today
  458. Wiring diagram needed
  459. smartcraft says: estop aserted what to do? 600sci
  460. formula vs. fountain
  461. 700 SC camshaft
  462. Yam outboards: 115 Vs 150
  463. 5.7GSi starts then stalls
  464. Prop Direction and Drive Direction
  465. 496 ho engine hp upgrades?
  466. Fuel Pump Pushrod
  467. merc 525 efi maint.?
  468. 502 Mag Mpi Fuel Pump
  469. looking for procharger guru's
  470. Thru transom cable sealant
  471. high end clever props, are they the biggest rip off ever?
  472. 496 MAG Elbows
  473. Lifter Valley Vents
  474. Gil exhaust question
  475. 525 header removal
  476. Help with serp. Belt 496
  477. Looking for some input on current situation
  478. vessel view on 1999 mag?
  479. Prop Direction
  480. Best flame arrestor
  481. Who made the pistons for Mercury racing in 03?
  482. wiring diagram 700 sci 14-pin connector?
  483. repowing with 1350's?
  484. Imco shorty's on Formula 292 SR-1
  485. HP 630 Lamborghini
  486. 496 MAG HO water issues
  487. XS Power Dry Headers ...Does anyone know what they are worth??
  488. Help Identifying HP500? modified internals and castings
  489. How do you get keepers to release
  490. 525SC upgrades Marine Kinetics Cam
  491. 91 502 MAG Valve Spring and Lifters
  492. Iimor ????
  493. Installing WB 02 in IMCO power flow elbow
  494. Blower on 25 Aggressor
  495. Mystery parts
  496. Oil Pan ?
  497. Cylinder head port sizes.
  498. Need cam help!
  499. Stainless Marine or CMI's
  500. educate me on Sea Strainers