HOTCAMS Camshaft - Stage 1 Exhaust

HOTCAMS Camshaft - Stage 1 Exhaust
HOTCAMS Camshaft - Stage 1 Exhaust

$143.99 - $199.99
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Description See Also: 2 Reviews 15 Questions Fitment
Item #HCM0005

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2 Reviews
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All Reviews
Logan Top 500 Contributor
Brewster, NE
Great upgrade!

Major difference when the intake and exhaust are added as a set. The low end torq benefits the most from the installation.

Motoflipper761
El Dorado Hills, CA
Just as advertised

I bought a set of these cams (intake and exhaust) for my '07 YZ250F. They boosted the low and mid just a bit. I noticed just a minute amount of over-rev loss. But, the loss was barely noticable. These cams work good. Although, I have heard the stage 2 work the best for the Yamaha.

15 Questions
Answered:   15
Not Yet:   0
madmax
Location: Lawrenceburg, IN, USA
Q: Do the exhaust cams for an rmz 450 come with the auto decompression lever or do you have to reuse the one on the bike?
2 years 4 months ago
My auto decompression lever is bent. It is an 05 rmz 450 I just need the auto decompression lever, I can't seem to find it for sale so I'm gonna have to buy a cam, even though mine is fine. Do you know if hot cams come with the auto decompression lever.
MotoSportGrantK
MotoSport Staff Expert Top 1 Contributor
2 years 4 months ago
A: Yes, the HOTCAMS Camshaft - Stage 1 Exhaust will come with the auto decompression lever. The decompression lever is pressed into the cam on your 2005 Suzuki RMZ450 so unfortunately you will to replace the whole cam to get a new one.
Tater
Location: Minnesota, USA
Q: If I have a 2006 Polaris predator 500 and install both intake and exhaust cams how much more horse power will I gain?
2 years 9 months ago
Will I need to re jet the carb again after already rejetting it for a complete system hmf exhaust jet at 155 now. Will I need to bring it up to 160 if I add the cams?
MotoSportExpert
Top 1 Contributor
2 years 1 month ago
A: The internal combustion engine is very simply put a basic air pump. The more air/fuel you and intake and exhaust from the motor, the more power you will make. HP gains are very subjective to gauge on any one or combination of performance parts. Things like the age of the motor, the tune of the air fuel ratio, the altitude, etc will all have an effect on PEAK HP numbers. Many performance products will not increase your PEAK HP, but rather move the HP to a different RPM range than the stock motor.

There is not a specific setting I could give you for jetting your bike. It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a local motorcycle dealership’s service department to have your bike properly jetted.
Spanky
Q: Do I have to re shim the valves on my 2012 RMZ250 when fitting stage 1 hot cams or can I just drop cams in and go?
Over 3 years ago
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: You need to at least check the valve clearance as in most instances the valves do need to be re-shimmed when installing new cams.
way2low88
Location: Oklahoma city
Q: Does the thw hotcams stage 1 exhaust cam come with the auto decompression switch?
Over 3 years ago
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: For your 2006 RMZ450, the Hotcams cams use the stock auto-decompression mechanism. Uses stock valve springs also.
Good
Location: Georgetown, CA, USA
Q: I just need an exhuast cam for my 05 rmz 450. Can I run a stage 1 exhuast Hot cam and the OEM intake cam together?
Over 3 years ago
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: Yes you can mix the cams. It would be recommended to run them as a match set from a performance standpoint. This will not cause you any issues on the 2005 RMZ450.
aichokeu
Location: Coeur d'Alene, ID, USA
Q: Cams Included?
Over 3 years ago
It appears the cams are removable in the picture. Do these (both intake and exhaust) come with the cams or is it just the camshaft?
MotosportStaff
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: The camshaft style may change depending on your application, but for the Stage 1 Exhaust it will come complete regardless of the model.
CaLkfx400
Location: texas
Q: Jetting?
Over 6 years ago
im understanding that when you change these cams its better to change the jetting in the carb also. I have a 06 kfx 400 and how do i know what to change the jets to? and i cannot find the stage 2 cams for my quad. why not?
JesseC
MotoSport Staff
Over 6 years ago Location: Tualatin
A: re jetting is not always necessary but you may want to contact Hot Cams directly to see if they have any jetting recommendations. you can not fond the Stage 2 because they do not make it for that model.
JesseC
MotoSport Staff
Over 6 years ago Location: Tualatin
A: re jetting is not always necessary but you may want to contact Hot Cams directly to see if they have any jetting recommendations. you can not find the Stage 2 because Hot Cams does not offer one for that model.
hhhhhhhhh
Top 1000 Contributor
Q: Not sure?
Over 6 years ago
should i buy both an exhaust and an intake cam or would one be just fine and give me extra power? which one is better?
JesseC
MotoSport Staff
Over 6 years ago Location: Tualatin
A: if you are looking for more power, get both cams.
fastrmz
Q: Can i use my stock intake cam with the exaust cam from hotcams stage 1?
Over 6 years ago
james718
MotoSport Staff Expert
Over 6 years ago Location: USA
A: I wouldn't recommend running an aftermarket cam and oem cams at the same time. The curvature will be off and may cause the bike to not run properly.
originalgangster
Q: Difficulty to install?
Over 6 years ago
these cams seem to be basic drop ins, woiuld it be unreasonable to install these in my gargage with some common sense and general mechanic knowledge? about how long would you think it would take (would probably do kibblewhite valves and springs as well). and finally would it severely effect my jetting or my hrottle response down love
OldThumperDude
Over 6 years ago Location: Texas
A: I can only speak for my XP with an older XR650Ls, these are my ticket and have built a few now. This is a top flight product and it woke my bikes up drasticly. They did wake up the bottom end just a hint, but what a rocket as she builds! The stage one is great for the average to expert weekend warrior, but with the top end cam the phrase "twist as shout" realy comes to mind. When I used the stage three I did the works, porting, pipes, jetting, ignition, compression and boreing. Big money, and got a bike I sold that winter. TOO FAST !!! With my aplications, I had to remove the motor to do the job correctly, but once that was done and the motor secured to my bench, it was quite simple. You do need to review how to unload the cam chain tensioner/s, but that is the only hick-up for install. YES it WILL mess with the way the bike runs and the jeting requirements. More power, more fuel! I sugjest you find a forum (Thumper Racing works for me time and time again.) and ask questions and they should be able to give you base line start jeting. From there is up to you and how you ride. READ THE PLUG !!!! Tan is good, black is too much fuel, nearly white, to little.

Good luck!! Old Thumper Dude
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