Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Engine Lacks Power


1. Check air cleaner for restrictions.
2. Check to ensure accelerator control cable is not binding or twisting.
3. Check seals on full load adjustment bolt and maximum speed stop bolt.
4. Check to ensure accelerator control lever is in full contact with maximum speed stop bolt.
5. Check exhaust system for restrictions.
6. Check for air in fuel filter.
7. Check notched line on injection pump flange, repair as necessary.
8. Check engine mounting for cracks or looseness.
9. Check fuel spray pattern, and ensure injection starting pressure is 1707 psi.
10. Check to ensure valve clearances are satisfactory. Refer to specifications.
11. Check compression pressure in each cylinder. Standard value should be 441 psi.
12. Check to ensure proper installation of timing belt and camshaft.
13. Check delivery valve for sticking.
14. Replace or readjust setting of injection pump.