Why is it called a Ironhead?
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Why is it called a Ironhead?
The ironhead was a Harley-Davidson motorcycle engine, so named because of the composition of the cylinder heads (Iron instead of Aluminium).
What does XLCH stand for?
This was the year Harley-Davidson introduced the XLCH, an XL series Sportster with the CH standing for “Competition Hot.” This bike was intended for amateur flat-track racing, scrambles and drag racing.
What is the best year ironhead?
The company brochure dubbed the 1978 Sportster the fastest, most powerful, and most agile motorbike of its time. 17,000 units were sold that year, marking the highest Ironhead Sportster sales in history.
How do you set the timing on a Harley-Davidson?
Locate the proper timing marks for your engine. If the shop manual is not available, remove spark plugs, turn engine until front piston is at TDC on compression stroke and identify TDC mark on the flywheel. 2….Setting Ignition Timing on your. Harley-Davidson engine.
| Big Twin | Sportster | |
|---|---|---|
| Timing Range | 0-35 | 0-45 |
| Timing at Start | 5 | |
| Timing at adjust RPM | 35 | |
| Adjust RPM | 1500 | 1650-1950 |
What does XLCH stand for on a Harley-Davidson Sportster?
The 1964 Harley-Davidson XLCH Sportster motorcycle’s impressive 883-cc V-twin engine outpowered most competitors of the era. Motorcycle Image Gallery. After its 1957 introduction, Harley’s XL Sportster gained a more sporting version called the XLCH in 1959 — “CH” supposedly standing for “Competition Hot.”
When did Harley stop kickstart?
1979 was the last year of the kickstart-only XLCH — Competition Hot — versions. The Sportster was also the platform that launched numerous Harley specialty models, including the flat track-inspired XR-1000 and café racerish XLCR.
Which Harley Sportster is the fastest?
Before that however, renowned racer Cal Rayborn rode a Harley-Davidson Sportster Streamliner and set a new land speed record of 265 miles per hour on the same Bonneville salt flats as Koiso’s team did years later.
Is a ironhead a Sportster?
The original Sportster engine was the Ironhead engine, which was replaced with the Evolution engine in 1986. Sportster engines, the 45 cubic inch R, D, G & W Models 1929 side-valve motors, and the ‘Big Twin’ side-valve motors, which were: the flathead 74.0 cu in (1,213 cc) Models V, VL etc.
What is the biggest Sportster engine?
The new 131 cubic inch (2147cc) V-Twin delivers the biggest, most powerful street-compliant engine Harley-Davidson has ever created*.
