When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a '98 FLSTC Evo with carb. I just put a temp gauge type dipstick in my oil bag and was just curious as to what I can look for with regard to a normal oil operating temp range. I ran it yesterday for about an hour and the oil temp was approx. 175 degrees. Air temp was about 65 outside.
Do you guys know what the hottest temp your oil should get to before it's considered a problem?
In the TC engines which run hotter than the EVO's when you reach normal operating temps on a hot day, Anything much over 250+ should be the candidate for a cooler and possible some sort of attention to fuel remaping as it is probably running lean and complication the issue.The evo's usually run around 200* plus or minus as a rule. TC engines run comfortable between 200-250 * depending on conditions. Much above that will damage the engine oil especially if it is not synthetic. The breaking point for dino oil is around 250* where as the synthetic oil can tolerate 300*. Not good in any case but can make a difference. Engine ignition timing in the evo's can make a difference in temps also.
My bike runs about 180-200 deg during the summer months.
When stuck in shore traffic it goes up. Am going to install a cooler on it.
Anytime it gets to hot (over 240) i do an oil change. Oil is cheap.
A modified motor cost MONEY to replace. IMHO
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.