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Lost RPM's
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38 
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 Lost RPM'sWent out ffor a little ride today amd the motor started running at top speed 29.0 3900 RPM's which i was running 4000 RPM's at 31.7 the other day. After a little while the boat felt slugglish looked at my RPM's I was only turning 3400 RPM's max now out the water u am only turning 3200 RPM's and 3100 max in water....I have 35 GTR hoyts stage 1 set up? Any idea what can be going on the motor has only 5 hours on it?
_________________ 18x60 Center Console 35 GTR |
| Fri May 01, 2009 6:14 pm |
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MMT Elite Member  Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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Re: Lost RPM's Sounds like it is lonesome to go see Hoyt again...
Wants Stage II ??? _________________ Eat - Sleep - Hunt ! ! ! "It is good to have an end to journey toward; but it is the journey that matters, in the end." |
| Fri May 01, 2009 7:07 pm |
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MMT 1000 Club  Joined: Tue Jan 13, 2009 9:46 pm Posts: 4596 Location: East TEXAN Proud
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Re: Lost RPM's Small adjustment to the sprang thang to me !!! Call Hoyt and git "dialed" in ...... you should be jumpin' all over 4k !!!!
GoodLuck !!!! _________________ Git a Gator-Tail or ride in mines wake ...... MtrFact !!!!! '05 Model .... Still Number One on the Water !!!! |
| Fri May 01, 2009 9:27 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's Yea, the only thin I can image is that they key is sheared?????????.......All i have is the GT shop # if anyone has a way of getting in touch wit hoyt please PM me the # I know they in Iowa for that demo deal
_________________ 18x60 Center Console 35 GTR |
| Fri May 01, 2009 9:53 pm |
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MMT Pro Member  Joined: Tue Jan 13, 2009 4:53 pm Posts: 457 Location: Loreauville
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Re: Lost RPM's IS the motor hard to start? does it take a while for it to pop off? that would be the first sign that the key is sheared,
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| Fri May 01, 2009 10:02 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's Yea it does have trouble starting that is why i thought it could be a sheared key
_________________ 18x60 Center Console 35 GTR |
| Sat May 02, 2009 8:20 am |
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MMT Pro Member Joined: Tue Jan 13, 2009 4:53 pm Posts: 457 Location: Loreauville
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Re: Lost RPM's |
| Sat May 02, 2009 3:08 pm |
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MMT Member
Joined: Wed Feb 04, 2009 7:33 am Posts: 5
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Re: Lost RPM's Rumble, it's the bracket that is holding the throttle cable that is cracked. Briggs changed something in their bracket and they started cracking. Call the shop we made a fix for this last week, and we will ship you one out.
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| Sun May 03, 2009 8:03 pm |
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MMT Sponsor
Joined: Tue Jan 13, 2009 7:07 pm Posts: 16608
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Re: Lost RPM's _________________ 17x48 extreme stage 2 GTR 20X60 DUAL RIG BOWFISHING ADDITION http://www.scalesandtailsbowfishing.com |
| Sun May 03, 2009 8:25 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's _________________ 18x60 Center Console 35 GTR |
| Sun May 03, 2009 8:32 pm |
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MMT Pro Member Joined: Tue Jan 13, 2009 4:53 pm Posts: 457 Location: Loreauville
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Re: Lost RPM's does the motor spin over for a long time before it cranks up, and when it does do you almost have th feather the throttle?
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| Sun May 03, 2009 8:38 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's _________________ 18x60 Center Console 35 GTR |
| Sun May 03, 2009 8:39 pm |
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MMT Pro Member Joined: Tue Jan 13, 2009 4:53 pm Posts: 457 Location: Loreauville
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Re: Lost RPM's its the timing key.
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| Sun May 03, 2009 8:47 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's _________________ 18x60 Center Console 35 GTR |
| Sun May 03, 2009 8:50 pm |
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MMT Elite Member  Joined: Tue Jan 13, 2009 6:08 pm Posts: 5282 Location: Meraux,La.
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Re: Lost RPM's The timing key is the problem behind the hard to start issue,the low rpms may be what was mentioned earlier about the cracked bracket.
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| Sun May 03, 2009 8:53 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's _________________ 18x60 Center Console 35 GTR |
| Sun May 03, 2009 8:56 pm |
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MMT Pro Member Joined: Tue Jan 13, 2009 4:53 pm Posts: 457 Location: Loreauville
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Re: Lost RPM's |
| Sun May 03, 2009 8:58 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's _________________ 18x60 Center Console 35 GTR |
| Sun May 03, 2009 9:01 pm |
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MMT Pro Member Joined: Tue Jan 13, 2009 4:53 pm Posts: 457 Location: Loreauville
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Re: Lost RPM's |
| Sun May 03, 2009 9:04 pm |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's _________________ 18x60 Center Console 35 GTR |
| Sun May 03, 2009 9:15 pm |
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MMT 1000 Club  Joined: Wed Feb 04, 2009 7:50 pm Posts: 3833 Location: Old East Dallas, Texas
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Re: Lost RPM's From what I read, the key is supposed to be for alignment only, not intended to hold the flywheel (the bolt does that). Huh, Learn something everyday.
_________________ Excel 1851F4 w/ MB35HD+R CDI with a little bit of this and little bit of that |
| Mon May 04, 2009 5:06 am |
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MMT 1000 Club  Joined: Tue Jan 13, 2009 6:42 pm Posts: 2377 Location: West Coast Wisconsin
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Re: Lost RPM's Lap the flywheel to the crank before you install the timing key, also stick a toothpick in the gap alongside the key if present. Once the flywheel is torqued down it isn't going anywhere without a puller.
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| Mon May 04, 2009 8:05 am |
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MMT Member
Joined: Sun Jan 18, 2009 8:20 pm Posts: 38
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Re: Lost RPM's Went to the GT sho yesterday and it ended up being the broken bracket on the throttle assembly....The guys fixed it up and it is good to go....
_________________ 18x60 Center Console 35 GTR |
| Tue May 05, 2009 8:02 am |
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MMT Member
Joined: Tue Feb 17, 2009 7:55 am Posts: 3 Location: Lowell, MI
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Re: Lost RPM's Does any one have detials on this broken bracket condition? A pic would be great. Just to help identify it.
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| Wed May 06, 2009 1:07 pm |
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MMT Addict  Joined: Thu Jan 15, 2009 4:19 pm Posts: 530 Location: TX
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Re: Lost RPM's _________________ 1754 GT w/ 35 GTR Hoytafied |
| Wed May 06, 2009 1:15 pm |
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