KTM 450 EXC Enhancements — Old Boys Toys

23 Мар 2015 | Author: | Комментарии к записи KTM 450 EXC Enhancements — Old Boys Toys отключены

KTM 450 EXC Enhancements

This is part two of my KTM 450 EXC review. In Part 1, Deciding on the KTM 450 EXC. I about my research and decision that lead me to buy the KTM 450 EXC.

When I my 2011 KTM 450 EXC a few months ago, I knew it would require changes. I’d read many and discussion boards talking how poorly it ran because of everything KTM had to do in it street legal. Rather jump into the changes, I to ride the bike for a bit and decide for what needed to be done.

break them down mandatory changes from day 1, and changes you should probably depending on your riding

Mandatory Changes from Day 1

for me, the Motor Cafe in Sunnyvale, CA the bike to my home. The primary is that with the stock it runs like crap. I think that even KTM be offended by this statement. already know it.

In order to pass emissions for registration the carburetor jetting is lean. My bike would idle, hesitated like on acceleration, and the exhaust popped crazy on deceleration. Basically, it was

I have a friend that a KTM 450 XC-W, the pure off road of the EXC. He was kind enough to with the carburetor settings to at make it rideable, but the improvement is Greg,the KTM sales guy at the Motor had told me I would want to put in a JD Kit. He was right.

I also to Maico Bill at HT-Racing. He put the jetting into his EXC. In the it seemed like the JD Jetting Kit be simpler to install, and be a little edgy than the pure jetting of the XC-W.

The kit includes needles designed specifically for the 450 the JD Jetting Kit was relatively easy, for a novice like me. I was a little about taking apart the but the instructions from JD Jetting quite good. Along pictures from their web I managed to change both the and pilot jets and the o-ring

If you have tried to adjust the mixture screw on the carburetor, you also found it impossible to with your hand, or any of tool. I also put in a new fuel screw that is designed to be adjusted by hand.

Once the new was installed, the performance was amazing. No idling problems. No more Hardly any popping on deceleration.

is a “must do” change to any new KTM 450 EXC. This is the only thing I consider a Day 1 There are other changes I’d highly desirable, but you may want to put on a few to get a sense for the bike, and your environment.

I’ll talk these next.

Highly Desirable Improvements

riding the bike on the street and I realized it is geared to do 75 mph on the highway. I know about you, but for me, I much better low-speed I didn’t plan to do any long rides. In stock form, the 450 EXC with a 15 tooth front and a 45 tooth rear sprocket. was fine for the street, but I hardly got out of gear on the trails.

I changed to a 14 front sprocket and a 48 tooth sprocket. This allowed me to using the existing chain. gearing was still reasonable for riding, even highway but provided much better low performance. I could now get out of first at low speeds, and grunt around in gear.

Second gear much less abrupt control than first for tight trails or tough

Is this the ideal gearing for the 450 That probably depends on riding. At times, the gearing seems a little tall.

I’ve talked two other with 450 EXCs and they changed to a 13 tooth sprocket on the and a 50 tooth sprocket on the back. I may with this gearing day to see if it better fits my riding. I it may, but I’m reasonably happy for

Now that the bike was running and geared for trails, it was a lot of fun to ride. lead me to discover the next desirable change. Sitting on the for a couple of hours was a pain in the The stock seat was quite But even worse, had squared off that dug into my upper

A friend of mine has an Enduro seat and a Guts set for his KTM. I to replace the stock seat an Enduro Engineering Standard Soft Comfort Seat. was a major improvement.

Now my arms and get tired before my … out.

Other Changes or Improvements

made a couple of other that I consider optional, but highly desirable. The stock on the 450 EXC are amazing. Very high Very little vibration on the Very likely to break off in a

I bought a very inexpensive KTM that folds away the handlebars when riding off On the street it isn’t as good as the mirror in terms of visibility and but since I mostly ride off it works for me.

The license plate had these funky reflector that sticks out the sides. It wouldn’t survive a crash. I it and put some stick on bicycle on the fender.

I also mounted the plate sideways to minimize the of it catching on something.

Although you may about problems with signals, the 2011 KTM 450 EXC has improved turn signals over years. They are now flexible and break in a crash. Trust me on they don’t break in a

I’ve also had people ask me changing the exhaust, or removing of the packing in the stock exhaust. At the the bike has more than power for me. If and when that the case, I may explore an after-market for some more horsepower.

And it. The KTM 450 EXC is now a much better off road than I am a rider.



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