J&P Community

Hopefully this isn't too silly of a question, i'm a bit new at this and the only way I know to learn is to ask. I have a 2008 XL 1200C. It has V&H short shots with fuel pak and a Harley Heavy Breather performance air cleaner kit. I was interested in ways to increase horsepower. I realize...

I have a 78 sporty with the jugs bored to .020, stock heads with valves and guides near outside tolerance, short pipes, keihin carb with .60 pilot jet/1.70 main, running 4R plugs, stock coil/bosch regulator, new odessy battery, new flyweights/points/condenser. I've had it running for about 5 min...

I have some residual fuel that I think is "misting/spraying" onto engine while I ride. I asked a motorcycle mechanic about it and he said umbrella valve needs replacing. What is he talking about and is it hard to do. Please tell me the technical term for the part so I can look it up, and can...

My Ironhead has electric and kick start. I have replaced all the electric start components that need to be replaced according to wear and damage (needle bearings, thrust washers, shifter lever... on and on. However, there is still a bump and grind that I haven't figured out, yet. Yes, of course,...

I have done alot of work on this bike & the only problem I have is if you give it gas to fast it will cut out until you let off on the gas & reapply the gas very slowly other than that it works perfect no backfire nothing. just waiting at a stop light & the light goes green if you give it...

I Have a very bad back & have changed the stock seat to a LePera Daytona which helps. I ride with the local HOG's & we ride many miles in a day. Would changing the Rear Shocks help? I am 220 pounds so I would need to spend a lot of $$$$$$ & I am useing the stock shocks right now also...

I have a 06 Sporty with stock rear shocks & go on long rides & I am 225 Pounds my question is would it be worth spending the money for better shocks? Like 412 Sereis for $299.00 or 418 for $494.00 or 440 I.S.A $590.00. That is a big price range, but how much better would say the 418 over the...

I have a 78 sportster and have replaced the points and condenser with a rev tech high-performance electronic ignition system and replaced the coil with a 3 ohm coil. the Coil is a drag Specialties 2102-0060 which is a lot like the product in this catelog as 380 - 088 which is a differnt shape than the...

After replacing the intake manifold seals 600 miles ago ( which you guys told me the problem was the intake seals) I replaced the seals with J.P. Blue Seals (Which were very thick & strong) as well as the J.P. Flanges (not cast but strong steel) And now my 06 1200C Sporty is running perfect !!!!...

I have a 06 1200C Sporty & what happened was I saw a leak on from the rear brake hose (from the reservoir to the master brake) & fixed that & it no longer leaks, after bleeding the rear brake I still have no rear brake ? The only other problem I see is the boot cover has a hole in it. I am...