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Lost RPM's https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=1867 |
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Author: | rumblebee1762 [ Fri May 01, 2009 6:14 pm ] |
Post subject: | Lost RPM's |
Went 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? |
Author: | Gigafowl [ Fri May 01, 2009 7:07 pm ] |
Post subject: | Re: Lost RPM's |
Sounds like it is lonesome to go see Hoyt again... Wants Stage II ??? |
Author: | BROOKS [ Fri May 01, 2009 9:27 pm ] |
Post subject: | 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 !!!! |
Author: | rumblebee1762 [ Fri May 01, 2009 9:53 pm ] |
Post subject: | 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 |
Author: | Gator Guy [ Fri May 01, 2009 10:02 pm ] |
Post subject: | 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, |
Author: | rumblebee1762 [ Sat May 02, 2009 8:20 am ] |
Post subject: | Re: Lost RPM's |
Yea it does have trouble starting that is why i thought it could be a sheared key |
Author: | Gator Guy [ Sat May 02, 2009 3:08 pm ] |
Post subject: | Re: Lost RPM's |
Author: | pinteal [ Sun May 03, 2009 8:03 pm ] |
Post subject: | 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. ![]() |
Author: | deltaduckmaster [ Sun May 03, 2009 8:25 pm ] |
Post subject: | Re: Lost RPM's |
Author: | rumblebee1762 [ Sun May 03, 2009 8:32 pm ] |
Post subject: | Re: Lost RPM's |
Author: | Gator Guy [ Sun May 03, 2009 8:38 pm ] |
Post subject: | 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? |
Author: | rumblebee1762 [ Sun May 03, 2009 8:39 pm ] |
Post subject: | Re: Lost RPM's |
Author: | Gator Guy [ Sun May 03, 2009 8:47 pm ] |
Post subject: | Re: Lost RPM's |
its the timing key. |
Author: | rumblebee1762 [ Sun May 03, 2009 8:50 pm ] |
Post subject: | Re: Lost RPM's |
Author: | dog walker [ Sun May 03, 2009 8:53 pm ] |
Post subject: | 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. |
Author: | rumblebee1762 [ Sun May 03, 2009 8:56 pm ] |
Post subject: | Re: Lost RPM's |
Author: | Gator Guy [ Sun May 03, 2009 8:58 pm ] |
Post subject: | Re: Lost RPM's |
Author: | rumblebee1762 [ Sun May 03, 2009 9:01 pm ] |
Post subject: | Re: Lost RPM's |
Author: | Gator Guy [ Sun May 03, 2009 9:04 pm ] |
Post subject: | Re: Lost RPM's |
Author: | rumblebee1762 [ Sun May 03, 2009 9:15 pm ] |
Post subject: | Re: Lost RPM's |
Author: | deadbird8 [ Mon May 04, 2009 5:06 am ] |
Post subject: | 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. |
Author: | 50fps [ Mon May 04, 2009 8:05 am ] |
Post subject: | 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. |
Author: | rumblebee1762 [ Tue May 05, 2009 8:02 am ] |
Post subject: | 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.... |
Author: | slittle619 [ Wed May 06, 2009 1:07 pm ] |
Post subject: | Re: Lost RPM's |
Does any one have detials on this broken bracket condition? A pic would be great. Just to help identify it. |
Author: | HuntingRDR [ Wed May 06, 2009 1:15 pm ] |
Post subject: | Re: Lost RPM's |
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