Rev Limiters
During break-in we suggest setting Rev Limiters to the lowest setting (5,500 or less) to insure over revving will not occur. Most Ultima
®
engines
will not produce power beyond 6,000 rpm and little if anything is gained by revving these engines past this rpm when in the stock
configuration.
A major contributor to a shortened engine life is high RPM.
Spark plugs Recommendations:
There are a variety of spark plug manufacturers who make the proper style and heat range plugs for these engines. While OEM H-D
®
plug heat
ranges will work perfect in most cases on our smaller engines, we recommend using a colder heat range plug on some 113 CI engines pulling
heavy loads and all 120, 127, 130 and 140 CI engines. Engines that have excessive spark knock may require a colder heat range and or richer
air/fuel mixtures and retard the timing. We also recommend using the coldest plug your combination/environment and fuel will allow for best
overall engine life and performance. Plugs that are too cold may foul easily under certain conditions and plugs that are too hot can cause spark
knock and detonation. Some popular manufacturers and heat ranges are listed below. Also consider that many manufacturers offer the same
heat range plug with a 13/16 hex or a 5/8 hex. If you prefer the 5/8 hex for example in a Champion RN11YC you need to change to a RC11YC for
this option. Follow your plug manufacturer’s recommendations for proper plug gap.
Ultima
®
Engine
130/140
113/120/127
113/120/127
80/96/100/107/113
12mm Colder Plug 14mm Colder Plug 14mm Mid Heat Plug 14 mm Hotter Plug
Champion
RA8HC
RN9YC
RN11YC
RN12YC
Autolite
4164
4263
4264
4265
NGK
DCPR7E
BPR6ES
BPR6ES
FR4*/BP5EA
19
Summary of Contents for Competition Series
Page 1: ...ULTIMA COMPANY LLC COMPETITION SERIES ENGINES NOT EPA COMPLIANT...
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Page 36: ...NOTES...
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Page 40: ...AFFIX STAMP HERE ULTIMA COMPANY LLC WARRANTY DEPARTMENT 2100 HIGHWAY Z PEVELY MO 63070...