Will I Need to Rejet When I Change my Pipes?

As moderator of J&P’s online forums as well as technical adviser here at the company, I get the opportunity to exchange posts about a variety of topics and interact with hundreds of people each week. And in both venues, I find one of the most asked questions is, “If I change my pipes, will I need to rejet?” The simple answer is “Yes, you do need to rejet.

And now I’ll explain why. But first, a little motorcycle exhaust education: Exhaust technology is the reason two-stroke engines work. Volumes have been written about the principles governing expelling gases out of the beloved internal combustion engine – space forces me … Continue Reading

2014-03-31T10:34:43+00:00 By |Tech Tips|17 Comments

J&P Cycles Is All Over Sturgis Next Month

J&P Cycles will be well represented at next month’s 70th annual Sturgis Rally & Races, where the tiny South Dakota town of Sturgis is seemingly transformed overnight into “Motorcycle City USA.”

We’ll be there the first half of August with not one, but two fully stocked stores — and that doesn’t even count our big rig at the corner of 8th Street and Lazelle in downtown Sturgis.

The main Harley parts store, located at 1650 Lazelle Street in the downtown area, opens this Saturday (July 31, 2010). The Metric parts store will open on Wednesday, Aug. 4. We’re also going to be represented at 1801 Lazelle Street, where … Continue Reading

Ride It Like You Stole It With Progressive Suspensions Dynamic Duo

In the days leading up to the 70th annual Sturgis Rally & Races, most of us are concentrating on ways to survive the butt-numbing ride to South Dakota in comfort. We’re loading up on motorcycle luggage and rain gear and custom parts we think will make us comfortable during those endless hours spent on our bikes. What we tend to forget about is the incredible roads surrounding the Black Hills area. Needles Highway, Iron Mountain Road, Spearfish Canyon —  all provide some of the best corner carving you’re ever going to find.

And believe me when I tell you that all the luggage or cup holders in the world … Continue Reading

Keeping Your Motorcycle Cool with Oil Coolers

One thing many of us do in preparation for hot weather is buy an oil cooler. It makes perfect sense, because the oil in an air-cooled engine performs a major role in cooling the engine. Does this mean an oil cooler will enable the oil to do a better job? Well, yeah, sort of — to a point. Fact is, oil coolers do a great job of cooling the oil, unless you pick the wrong unit for your application, or the unit’s not properly installed. In either of those cases, an oil cooler can do more harm than good.

Oil has a tough role in Harley engines. It has to … Continue Reading

2014-03-31T09:54:27+00:00 By |Tech Tips|12 Comments

Daytona Beach: It’s Much More Than a Vacation Spot – It’s a Destination

It’s an awfully big country for a biker and you couldn’t run out of places to visit if you tried. But if it’s a guaranteed successful vacation you seek, it would be hard to find any place in the contiguous United States more fun than Daytona Beach, Florida.

In fact, Daytona Beach is rated as one of the top 10 most beautiful beaches in the United States, offering more than 23 miles of white sandy beaches with options for great fishing, surfing and night life. But what Daytona’s really known for is its status as one of the only beaches in the world where you can drive your vehicle onto … Continue Reading

Video Makes Quick Work of Suspension Setup

You can have the most impressive rear suspension setup in the world and it’s probably going to be a big disappointment to you unless it’s properly set up. To avoid that happening, Progressive Suspension has produced a six-minute video that shows how a few measurements, a little math and a bit of fine tuning can help you realize the potential of that hot-shot suspension system.

Scott Hodgson, Progressive’s director of applications engineering, has more than two decades of experience with motorcycle suspension. In video clip below, he walks you through a detailed setup on a Harley bagger, although the same instructions apply to those adjusting a twin-shock bike (you’ll be … Continue Reading

Two Must Have Items for Your Garage

During our usual Tuesday get-togethers here on the J&P Cycles blog, we like to tell you about the new pieces of swag you can score for your ride. That includes bagger bling, performance parts, motorcycle luggage or other must-have motorcycle parts that the guys and girls here at the world headquarters have scoured biker-land to find for you. I’m just sitting here, with “Radar Love” blaring in my headphones, staring at my computer screen full of J&P goodies and trying to decide which two gems I want to present to you this week. I’ve come up with a pair of goodies, but be warned: Neither is sexy. But both parts … Continue Reading

2014-03-31T10:11:20+00:00 By |Tech Tips|3 Comments

Harley Drag Racing 101

Born and bred right here in the USA, drag racing has grown worldwide as one of the most popular forms of motorsports. Perhaps the best part about drag racing is that you can run just about any type of vehicle, including street legal Harley-Davidsons. Whether you ride a stock 883 Sportster or a monster 131-inch Road Glide, you’re free to participate as long as your bike passes the required safety inspection. With literally hundreds of drag strips across the nation, you’ll have no problem finding a legit location to run WFO with zero interference from the man. Aside from hosting sanctioned events, almost every strip offers “test and tune” sessions … Continue Reading

2014-03-31T10:12:33+00:00 By |Tech Tips|19 Comments

Think of the Carburetor as Your Friend

Editor’s note:  Today we present the second of two blog entries about carburetors versus fuel-injection systems. Yesterday we heard Patrick Garvin discuss the wonderfulness of modern fuel injection. Today we hear from Kody Wisner, who will opine on the simple magic of a motorcycle carburetor.  Read ’em both, compare notes and come to your own conclusion — unless, of course, your mind’s already made up.

By Kody Wisner

In this era of high-tech gadgetry, the trusty carburetor is a survivor — hanging on with bloody fingernails against some very advanced fuel-injection systems. But know this: The modern carburetors of today are very different from those of yesteryear.

Adjustable accelerator … Continue Reading

2014-03-31T10:13:46+00:00 By |Tech Tips|13 Comments

When it Comes to Efficiency, Fuel Injection Wins – Hands Down

Editor’s note: What we have here is Part 1 in a two-part series that’s intended to end the bitter brouhaha between proponents of carburetors and those who are ardent fans of fuel injection. Patrick Garvin dominates the discussion today, citing the wonders of fuel injection. Tomorrow, we’ll have Kody Wisner serve up his arguments in favor of old school carburetion. Like most of these pro/con blog posts, we’re probably not going to sway anybody’s opinion. But such musings can go a long way in confirming our right to be hardheaded about such things. And, if one of these blog entries changes your thinking about FI versus carburetion, for goodness sakes, Continue Reading

2014-03-31T10:14:38+00:00 By |Tech Tips|4 Comments