Yamaha EH63 - User Manual

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SERVICE MANUAL

EH63

EH64

EH65

EH72

7D5-28197-E0

2019.03×1

!

7D5-28197-E0_cover.indd 1-2 2019/03/12 10:04:33

Table of Contents

Questions and Answers

S
Summer WilkinsonAug 12, 2025
What to do if my Yamaha EH63 Engine does not start?
- N
  Natalie MooreAug 12, 2025
  If your Yamaha Engine won't start, begin by checking the oil and fuel levels, adding more if they are insufficient. If the issue persists, consider replacing the fuel. Inspect the spark plug, re-gapping or replacing it as necessary. If the ignition spark gap is adequate, the ignition system should be in working order. If not, consider replacing the ignition coil. Clean the engine to ensure optimal performance.
Y
yayersAug 19, 2025
What to do if the valve face and valve seat are causing my Yamaha EH63 Engine not to start?
- M
  Ms. Cynthia ShepherdAug 19, 2025
  If your Yamaha Engine is not starting, the issue might be related to the valve face and valve seat. Consider resurfacing or replacing them to address the problem.
M
Maxwell HessAug 27, 2025
Why won't my Yamaha Engine start, and how does compression affect it?
- L
  lisa62Aug 27, 2025
  If a Yamaha Engine won't start, it could be due to high or low compression. If compression is too high, decarbonize the combustion chamber to remove carbon deposits. If it's too low, further checks are needed.
S
Stephen SmithSep 3, 2025
What to do if I need to rebore or replace parts on my Yamaha Engine to get it to start?
- E
  eric96Sep 3, 2025
  If your Yamaha Engine is not starting, it might be necessary to rebore or replace parts to fix the issue.

Yamaha EH63 Specifications

General

Brand	Yamaha
Model	EH63
Category	Engine
Language	English

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