1998 Yamaha Exciter Engine and Boat Repair Needed (Local Only-Clarkston, Michigan)

@muhannadbukhamse

Hello, I’m Mohand, an experienced mechanical engineer familiar with marine engines, fuel systems, carburetion, and two-stroke performance troubleshooting. **Scope of Work:** 1. Perform an on-site diagnostic inspection of the Yamaha Exciter 135, including carburetor, fuel delivery, linkages, ignition/timing, cooling system, and RPM limitations. 2. Identify the root cause of the low-speed/no-throttle condition and subsequent overheating/idle failure, then provide a written diagnosis, repair estimate, and required-parts list. 3. Complete the necessary servicing or repairs and conduct a controlled water test to verify stable idle, proper acceleration, cooling performance, and full-throttle operation. I’ll prioritize the overheating issue and systematically check fuel, ignition, carburetion, cooling, and mechanical conditions before recommending replacement parts. I can also help identify practical sourcing options for any required components. Please send the boat’s exact engine configuration, recent maintenance history, and any photos/videos of the current symptoms. I’m ready to discuss availability and the earliest possible inspection. Best Regards, Mohand

@SkillCrafts

I understand your 1998 Yamaha Exciter is experiencing a significant power loss and overheating issue, preventing it from exceeding 5 mph and even struggling to idle. This sounds very similar to a recent Yamaha 130 I serviced where a partially clogged fuel filter and a faulty impeller were causing similar symptoms of restricted RPM and subsequent overheating. Getting you back on the water quickly is my priority. My approach will involve a comprehensive diagnostic process. I'll start by thoroughly inspecting the fuel system, including the tank, lines, and fuel pump, paying close attention to the carburetor jets for blockages and float bowl adjustment. I'll then move to the ignition system, verifying timing and spark quality. Engine compression will be checked, and the cooling system will be pressure tested, with a focus on the water pump impeller and thermostat. Finally, I’ll examine all throttle and shift linkages for smooth operation and any signs of binding. Have you noticed any specific smells, like unusual exhaust odors, or any changes in the engine’s sound prior to the overheating? Would you be available for a brief call to discuss your availability for me to come out and assess the Exciter?

@richard2855

Hi, I'm a licensed professional engineer with over 20 years of experience in marine engines, especially Yamaha two-stroke jet boats. I understand you're having trouble getting your 1998 Yamaha Exciter 135 to move above 5 mph, and now it's also stalling at idle after overheating. Carburetion and engine performance are the main concerns, and you're looking for a full diagnostic and repair. - On-site inspection of your engine, fuel system, and controls - Written diagnostic summary and estimate after initial check - List of any parts needed, with advice on sourcing and whether to service or replace - Hands-on repair or adjustment of carb, linkages, and ignition as needed - Water test at the ramp to verify idle and full throttle performance I recently helped a client with a similar Yamaha jet boat issue—poor throttle response and overheating—so I'm familiar with both troubleshooting and tuning these setups. Could you let me know if any warning lights or alarms sounded when the engine overheated? If you select me, I will satisfy you. Best Regards, Richard

@james84101

Hi, Thank you for sharing the details of your project. I understand you’re looking for a skilled marine technician to diagnose and repair your 1998 Yamaha Exciter 135, which is currently experiencing severe performance issues—restricted speed, overheating, and now difficulty maintaining idle. Your primary focus is a thorough assessment of the carburetors, fuel and ignition systems, and all relevant engine linkages and sensors, with a goal of restoring reliable, full-throttle operation. I have extensive hands-on experience with Yamaha jet boats and two-stroke marine engines, including diagnostic and repair projects where carburetion, fuel delivery, and ignition timing were at fault. For example, I recently resolved a similar issue on a Yamaha LS2000 with twin 135s—after a full linkage and carb sync, fuel system flush, and diagnosing a faulty ignition coil, the boat was back to peak performance. My approach always includes clear communication with the owner regarding repair vs. replacement options, sourcing quality parts, and ensuring all adjustments are water-tested for real-world reliability. With confidence, I can offer a comprehensive diagnostic inspection at your location, identifying both obvious and hidden faults, and provide you with actionable recommendations. I’m committed to getting you back on the water quickly and safely. - Full on-site inspection and written diagnostic report - Detailed list of required parts with sourcing recommendations - Professional repair, adjustment, or replacement of faulty components - Post-repair water test to verify performance and idle stability I believe my background and methodical approach make me an excellent fit for your project. I’m available to start right away and can coordinate inspection at your convenience. Best Regards, James

@GridsmithLTD

Hello, I reviewed your requirements and the core challenge is diagnosing why the Yamaha is losing power and overheating while separating fuel, carburetion, ignition, cooling, and mechanical issues before replacing parts. I would approach the inspection systematically, checking the carburetors, fuel delivery, linkages, ignition timing, cooling system, and engine performance to identify the root cause and determine which components can be serviced. I have worked on similar marine engine diagnostics and two stroke systems and can share relevant experience once we connect in chat. Best Regards, Atik

@robert4983

Hello, If this were an architectural project, I’d assure you I am an expert in your field—but as a marine tech, I bring that same confidence to your Yamaha Exciter 135. I recently completed a full performance overhaul on a mid-90s Yamaha jet boat facing similar throttle and overheating issues, so I understand the urgency and frustration these problems cause. Your description points to classic two-stroke troubleshooting: fuel delivery, ignition, and linkage all need a careful hands-on diagnostic. I have over 15 years of experience in marine engine repair, specializing in Yamaha jet boats and comparable two-stroke setups. My work often involves in-depth carburetor service, performance tuning, and resolving hard-to-diagnose power loss—so I’m well-equipped to get your boat back to wide-open throttle. Here’s how I’ll help: * Full on-site diagnostic including carburetor, fuel system, linkages, ignition timing, and all relevant sensors * Clear written estimate and parts list, with advice on service vs. replacement and sourcing support for components * Professional repair and adjustment, with a focus on both performance and reliability * Water test at the ramp to confirm strong idle and full throttle capability before you head out I’d love to help you get your Yamaha back on the water quickly and reliably. Please contact me to arrange a convenient time for your inspection and next steps. Thanks, Robert

@david8846

Hi, Thank you for sharing the details of your Yamaha Exciter 135 project. I understand how frustrating it is to have your boat sidelined, especially with a challenging issue like this. I’m confident I can help get your engine running smoothly again—diagnosing performance and overheating issues on two-stroke Yamaha jet boats is right in my wheelhouse. I have over a decade of hands-on experience troubleshooting and repairing Yamaha marine engines, including several Exciter and GP series models. For example, I recently resolved a similar case where a client’s Yamaha twin-carb setup would idle but refused to accelerate—this turned out to be a combination of carburetor blockage and a faulty ignition sensor, both of which I identified and fixed on-site. My approach always involves a meticulous step-by-step diagnostic, ensuring nothing is overlooked from fuel delivery and carb linkage to cooling and ignition systems. I’ll start with a thorough inspection at your location, using proven diagnostic methods to pinpoint the root cause. Whether the issue stems from fuel restriction, ignition timing, or a sensor fault, I’ll provide straightforward advice on whether repairs or replacements are best. My aim is to get you back on the water with confidence and peace of mind. - Full on-site diagnostic of engine, carburetors, ignition, and cooling systems - Written estimate and a prioritized list of any parts needed, with sourcing recommendations - Professional repair, adjustment, or part replacement as required - Water test at the ramp to confirm stable idle and proper full-throttle performance I look forward to working with you and getting your Exciter back to peak performance. Best Regards, David

@liam2814

Hello. I am a licensed civil engineer. I am proficient in architectural design, review, and report writing. I have experience designing 1000+ houses and apartments. I ensure design quality by strictly adhering to deadlines and providing prompt feedback. I believe I am the right fit for your work. Best Regards Liam

@akourinetllc

Hello, I am an experienced marine technician with extensive experience diagnosing two-stroke engines, carburetion, fuel delivery, ignition, cooling, and jet-drive performance issues. I understand that your 1998 Yamaha Exciter 135 starts and idles but will not accelerate beyond approximately 5 mph, subsequently overheated, and now has difficulty maintaining idle. I can perform a systematic diagnosis of the carburetor and fuel system, throttle/linkages, ignition, cooling system, compression, and other components that could cause limited RPM and overheating. Once the cause is identified, I can provide a clear repair recommendation and parts list before proceeding. After repairs, the system can be tested for stable idle, proper cooling, and full-throttle operation. I am interested in this project. Looking forward to working with you. Warm regards

@wendellb52

Hi there I’m an experienced mechanical engineer and hands-on equipment specialist with 10+ years of experience troubleshooting combustion engines, fuel systems, mechanical linkages, and performance issues. I can systematically diagnose your Yamaha Exciter 135, starting with carburetion and fuel delivery, then checking throttle/linkage operation, ignition timing, cooling system, and other components that could restrict RPM or cause overheating. I’ll identify the root cause before recommending parts, distinguish serviceable components from items requiring replacement, and provide a clear written repair estimate. I can also verify the repair through a controlled water test, confirming proper acceleration, full-throttle operation, cooling performance, and stable idle before considering the job complete. Thanks, Wendell