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JetBoatPilot - Yamaha Jet Boat Throttle Sync Cable Adjustment Video

Bruce

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This video will help you to understand how to adjust your throttle cables if they are out of sync from the factory.
 

AZDANSX230HO

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@Bruce does this work on the older boats such as my 2008 SX230HO? I noticed up at Lake Powell last week my Port Engine would get up to 10K, Starboard Engine only 9500K, I need to adjust the cables is my guess.
 

Bruce

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@Bruce does this work on the older boats such as my 2008 SX230HO? I noticed up at Lake Powell last week my Port Engine would get up to 10K, Starboard Engine only 9500K, I need to adjust the cables is my guess.
This is the procedure for the 1.8 liter boats. Do you have the service manual? It details the procedure for our MR-1 powered boats. I have been fortunate not to need to use it

The only time my boat was showing significantly lower RPMs on one engine I needed to change the spark plugs.
 

Rob9550

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Mine are off just a bit so I will be adjusting mine soon. I don't have a service manual for the 2015 AR240. Is the adjustment the same? @Bruce
 

Bruce

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Mine are off just a bit so I will be adjusting mine soon. I don't have a service manual for the 2015 AR240. Is the adjustment the same? @Bruce
I believe so.
 

AZDANSX230HO

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This is the procedure for the 1.8 liter boats. Do you have the service manual? It details the procedure for our MR-1 powered boats. I have been fortunate not to need to use it

The only time my boat was showing significantly lower RPMs on one engine I needed to change the spark plugs.
I have changed the plugs twice since I have owned the boat and the impellers are perfect, boat has roughly 80 hours on it now - it definitely needs the cables adjusted in my opinion. I do not have a service manual, just the owners manual.
 

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I will find the procedure for you tomorrow. Could you write up the process for others to follow?
Yes Sir, with pictures!
 

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Mine are off just a bit so I will be adjusting mine soon. I don't have a service manual for the 2015 AR240. Is the adjustment the same? @Bruce
Yes, exactly like in the video clip.
 

AZDANSX230HO

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I will find the procedure for you tomorrow. Could you write up the process for others to follow?
@Bruce Last time I had the boat out at Lake Havasu both engines were running even at 10,000 RPM's, the cables are still off a little bit as far as Starboard could use a little more throw. But having both running at 10K made me happy. Only thing I did to the boat was put on the new speedo pickup which has nothing to do with the throttles.
 

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I too have un even engine rpm when using throttle sync except at WOT where they run together at 10,200. But if i use throttle sync at lower rpms, there can be a 200rpm difference in the engines. The boat seams to be running good i see 48.6 on gps speedo. Is this something to do with different impellor pitches? Is this normal? Is this adjustable? The problem does not seem linear. My throttles are mechanical and not as in the video and at WOT both are up against the stops.
 

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Edit the post above...At WOT port rpms 10,200, starboard rpms 10,100+ish so one engine is off by a few rpm. Will wait til spring to diagnose/adjust.
 

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@AZDANSX230HO I know you are done for the season, but did you get this issue resolved? Do your engines "sync" when throttles are locked together? My mechanical throttles are off by 100rpm at WOT and greater rpms diff. at lower rpm. I guess i will wait till next spring after new plugs, filters and oil etc. installed to test/adjust.
 

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@AZDANSX230HO I know you are done for the season, but did you get this issue resolved? Do your engines "sync" when throttles are locked together? My mechanical throttles are off by 100rpm at WOT and greater rpms diff. at lower rpm. I guess i will wait till next spring after new plugs, filters and oil etc. installed to test/adjust.
I have not had a chance to do it yet, the last couple of lake trips my RPM's were much closer at WOT, they still need a little adjustment to make them identical, I will try to adjust and post a thread over the Winter. Here is the adjustment document if you want to tackle yours before I have time.
 

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zipper

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zipper

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@AZDANSX230HO I just acquired a 2007 ar sx230 ho complete service manual electronically, the file you posted is part of it. If you do not have complete document, I can return the favor. It is too large to attach here. 22Mb, 08 should be the same.
 
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AZDANSX230HO

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@AZDANSX230HO I just acquired a 2007 ar sx230 ho complete service manual electronically, the file you posted is part of it. If you do not have complete document, I can return the favor. It is too large to attach here. 22Mb, 08 should be the same.
PM'd you my email address, thanks!!
 

zipper

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Sent, you are welcome.
 

dman530

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This video will help you to understand how to adjust your throttle cables if they are out of sync from the factory.
@Bruce, your site says these are out of stock, do you know when you will have more?
 

Bruce

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