HS 40 timing set point

ZR9B

ZR9B

#1
#1
After a quick google I see .35 before TDC and .65 before TDC this is from a 1972 Rupp HS 40. both numbers are posted on this site in one place or another. thanks for the help
 
ZR9B

ZR9B

#3
#3
funny thing is...the marks left by the bolts that hold the timing plate...puts the timing at .060.....not even close to what the book says....also the condenser is 2/3 rds bigger than the replacement one. Hmmm
 
Stangrcr1

Stangrcr1

New Member
#4
#4
The earlier the timing, the more "power", but will be harder to start, may kick, and will serve more engine wear.

I go by my book which says .030" - .040" for the HS40. Tecumseh factory manual dated 10/1973.

If your engine is newer, your numbers may vary.
 
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