450R and flywheel weight

Is it a very common practice to put flywheel weights on the 450R's? I have an 04 and just got an SFB weight from Ebay. It looks like the tools needed are a flywheel holder and puller. Are any other special tools needed? How hard is it to install? The instructions make it look fairly easy. I've read articles that say that the weights help with low end pull and preventing stalling. Has anyone had any experience with this?

Novice MX'ers and woods/off-road riders benefit from a fww.

I'm getting an FWW for my 04, but I am going to go with the complete Trailtech flywheel 15oz.

I have a 9oz trail tech on my 05,a puller is all you need,an impact wrench is helpful to remove the flywheel nut,but be careful if you use the impact to tighten the nut back up,you can twist it off.

Novice MX'ers and woods/off-road riders benefit from a fww.

Think about this CamP, you put in a H/C piston, swap cams, maybe some porting to build up a rocketship that cant really be ridden. But then you throw on a heavy fly wheel weight to smooth it out? In theory this seems like a good idea, but would it be kinda pointless?

fww=more tractable power/or more hookup

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By Eric Schrader
      2007 Honda CRF 450-R which is set up for desert racing (Track/desert) complete with quick fuel dry break gas tank, extra 4 gallon dump can and stand and a complete extra front wheel. The racing quick fuel system alone costs $1,000 new on this bike and takes 91 octane pump gas. The bike has an 18" rear tire with a heavy duty setup (see description for details). The bike rips across the desert and has a Tokyo mods carb mod with the 10x ignition mapping (currently set to a handlebar switch for smooth power and max power). Gas tank is a 3.2 gallon IMS dry break tank. V4 steering stabilizer included. Suspension is set up for 6'4" 175lb rider with a tall seat configuration, but the stock seat is included as well. Zero oil leaks and well maintained using a preventative maintenance method with the best new parts each time. Receipts for all items can be provided. About 20 hours on the rebuilt head, Carb just rebuilt, bike is prepped and ready for the season. Starts in 1-2 kicks always. 100% reliable bike as long as you turn the gas on.  Current CA Red sticker registration r with spark arrestor and original title. 2nd owner.
      Extremely detailed writeup/configuration of this bike:
      GPR V4 Stabilizer - 05-08 Honda CRF450R Red/Black- Fat Bar Kit  Renthal 1 1/8" FatBar Ricky Carmichael High Bend Tanium Factory Effex Grip Donuts Honda CR Pro-Taper Pillow Top MX Grips Black/Grey/Red ASV unbreakable clutch and brake levers Air/Fuel
      IMS 3.2 Dry Break Ready Natural gas tank IMS Dry Break full receiver No Toil Pre-Oiled Air Filter  Carb/Ignition/Engine
      Tokyomods Carb Mod Tokyomods 10 Map Ignition System OEM SS/Ti Head valves, Precision Concepts (~20 hours on it) Acerbis lightweight polypropylene skid plate Tokyomods Mechanical Camchain Tensioner Pro Moto Billet Spark Arrestor endcap w new screen PMB-01-1104 Drive
      Primary Drive Rear Steel Sprocket 48 Tooth  Primary Drive Front Sprocket 14 Tooth  Primary Drive 520 ORH Gold X-Ring Chain 520x114 Polisport Chain Guide Black  Polisport Chain Slider Black Polisport Chain Roller 42mm Black - Upper  Rear Wheel
      D.I.D 18X215VS01H Dirt Star Silver 2.15x18 OEM Profile Rear Rim Bulldog Splined Spokes Bridgestone Ultra Heavy Duty Motorcycle Tube 110/100x18 110/100x18 Maxxis Maxx Cross Desert Intermediate Terrain Tire (60% tread) DUAL Motion Pro LiteLoc Rim Lock 2.15" Motion Pro Armor Rim Strip Tape 18"/19" Balanced using motion pro weights Front Wheel
      Bridgestone Ultra Heavy Duty Motorcycle Tube 80/100x21 90/90x21 Maxxis Maxx Cross EN Tire (100% tread) Motion Pro LiteLoc Rim Lock 1.85" Motion Pro Armor Rim Strip Tape 21 Motion Pro Rim Lock Dampener Balanced using motion pro weights Suspension
      Precision Concepts suspension rebuild w/ Factory Mid-valve Mod (rebuilt front/rear suspension last year) Seal Savers Fork Covers - Inverted Forks 44-50mm Fork Tube, Long, Red SDG High Foam Seat Motion pro kick stand Carb Settings:
      Starter jet k72 Main jet k178 Needle jet Slow jet k45 Pilot screw 2 1/2 turns from out Jet Needle NJYR. Clip 3rd from bottom Slow air jet k100 Twin Air Pre Oiled Air Filter Radiator
      Oversized Outlaw 1.8lb cap Cycle Logic Engine Ice Brakes
      New rear Tusk Stainless Steel Typhoon Brake Rotor New Braking Race Sintered Compound CM46 Brake Pads  Tusk Rear Motorcycle Steel Braided Brake Line Standard Length Red (incredible braking power) Galfer Front Steel Braided Brake Line Standard Length Red Motul RBF 600 Racing Brake Fluid DOT 4 Plastics
      Acerbis Replica Plastic Kit Original 07 (1 year old) Acerbis Lower Fork Cover Set Acerbis Front Number Plate White Rocky Mountain Attack Graphics Custom Blitz Full Coverage Number Plate Backgrounds Red/White - 2007 HONDA CRF450R Extras:
      Extra OEM complete front wheel/bearings/dust caps Bridgestone Ultra Heavy Duty Motorcycle Tube 80/100x21  80/100x21 Maxxis Maxx Cross Desert Intermediate Terrain Tire (60% tread, a few years old) Motion Pro LiteLoc Rim Lock 1.60/1.40 Motion Pro Armor Rim Strip Tape 21 Motion Pro Rim Lock Dampener 4 gallon IMS Dry Break Dumpcan with Probe (IMS 218351-WP) needs seal kit IMS dumpcan stand (218391)  OEM Honda service manual New packaged Engine parts Oil filters/seals OEM radiators Complete set of extra used plastics OEM seat Pro Taper EVO 1-1/8" Oversized Handlebars, Color- Magnesium, Size- CR High Stock ECU More 
        Updated to include Dry break dump can, can stand, extra front wheel and updated details about the bike. Extra parts photos
    • By aminem
      my kill switch is not working and i had bought a new one , My problem is that , i cant disconnect the OEM kill switch . is it a trick to disconnect it !? 
      plz Help
    • By Kevin from Wiseco
      Jeremy Martin Leads the Charge for Wiseco Riders at Daytona Supercross
      Christian Craig Turns in Career Best in 450 Competition
      MENTOR, Ohio (March 13, 2018) – Jeremy Martin showed the way for Wiseco-sponsored riders in Saturday night’s Monster Energy Daytona Supercross presented by Honda. In a season marred by bad luck and misfortune, Martin put together a near flawless ride to earn his first Eastern Regional 250SX Class podium finish of the season.
      Martin qualified eighth for the division’s annual visit to the World Center of Racing, finished fourth in his heat race, and came home second in the 250SX main event, missing his first win of the year by less than a second.

      “It’s Daytona, a real man’s track.” said Martin who sits fourth in points. “It was the toughest race of the year as far as fitness. I had to slow down a little bit, halfway through the main. I was getting close to (race winner) Jordon (Smith) and I was starting to think about where I could make a move on him, then I made some mistakes and he got away from me. Couldn’t quite get close again, but it’s good. We’re on the podium and in contention for wins again. That’s something I haven’t been able to say in supercross in a while. We want to get wins and now we know it’s coming.”
      Martin’s podium was a bright spot, but the rest of the event was rough for the GEICO Honda/Factory Connection squad. RJ Hampshire crashed hard in his heat race and had to be transported to a local hospital. He injured his back and ribs, but shoulder pain left him with the most concern.
      “I felt good on the bike all day,” said Hampshire via his Instagram account. “Had some pretty good speed and my foot just slid off hitting my shifter in those rollers during that heat race. After seeing the pictures from the crash I’m very thankful I didn’t take a shot to my head. I have some fractures in my T3/T4 in my back and ribs. Also have some damage to my lungs which is why I’ll be spending a couple nights in the hospital. I’ll be getting some more checkups this week on the shoulder also.”
      Cameron McAdoo, the third member of the team, was unable to compete at Daytona after being sidelined with a hand injury two races ago in Atlanta.
      Across the paddock, in the premier 450SX Class, Christian Craig got the call to fill in for Team Honda HRC. With the team’s regular riders Ken Roczen and Cole Seely out with injuries, it was up to Craig to carry the load for the factory team, and the upstart rider didn’t disappoint.
      The San Diego native was solid in both qualifying sessions, won his heat race and snagged the holeshot in the division’s main event. After relinquishing the lead to eventual winner Justin Brayton, Craig continued to show he was up for the challenge. The 26-year-old rider raced for second and third for most of the 20-minute-plus-one-lap feature before losing one more spot in the late goings to bring his No. 32 Honda CRF450R home fourth in the final rundown.

      “I had a great week testing with the team,” commented Craig. “They came down to Florida right after Atlanta and I feel like we really improved. Just getting more time on the bike and getting more comfortable was huge. I started off race day feeling really good. My qualifying position didn’t really show it, but overall I was happy with my riding. It’s all about having fun out there, and man, that’s what I did tonight. I was up front in the heat race, fell to third, but then the two guys in front took each other out so I ended up winning. You can call it luck or whatever, but I just put myself in a good position to capitalize on people’s mistakes."
      “I had a good gate pick and some confidence going into the main. I grabbed the holeshot and led for almost the first lap, but [Justin] Brayton got by me pretty quick. I stayed second for quite a while. I just rode my hardest and did my best. Unfortunately, a couple guys got by me so I ended up fourth. The track was so tough. This is only my second time racing Daytona and last year didn’t go well, so I really wanted to get some revenge this year. It’s better than the week before, but man, I was so close to a podium. I just need to keep putting myself in good positions and work on getting better each weekend.”
      Monster Energy AMA Supercross rolls on this weekend when the series visits the “Gateway to the West” for its annual race at the Dome at America’s Center in St. Louis. The 11th of 17 races on the 2018 supercross calendar will be televised live on FS1 Saturday, March 17, beginning at 8 p.m. Eastern Daylight Time, 5 p.m. Pacific.

    • By desert520sx
      I have a 03 450 that I just got and it runs great! I love my bike and am big on preventative maintenance. I have searched the threads on TT and have not found any descriptive threads on how to check valve clearance or adjust them. Just by looking at them, I can see that the intakes need to be shimmed and the exhaust valves can be adjusted quite easily unless one needs to be adjusted differently than the other.
      I tried to do it last night, and lined up the marks on each side to get the piston to TDC to check adjustments and could not get any readings on tolerances on either the intake nor the exhaust. I moved the crank a little bit forward and got a .011 reading on the exhaust valves. I read in a thread that the spec was .011" for the left one and .014" in the right for the auto decompressor. The spec I am using for the intakes is .006" Are these specs correct? :excuseme:The only issue is that the adjustment for the exhaust valves is one and the same. Different from my KTM where you can adjust each valve individually.
      No matter where the cam was on the intake valves, I could not get any readings. Does anyone have a thread, website, downloadable manual, or article on checking and adjusting valves in these beasts?
    • By bigg_stevee
      I recently replaced water pump and seal after I noticed that my '02 CRF450R was spilling coolant on easy trail rides. After the water pump swap (which was successful), I noticed the same problem. It's interesting - the bike only spits coolant (I mean a LOT of coolant) after passing anything above 1/2 throttle. The bike makes this weird 'gurgling' noise, like trying to suck through a straw when your glass is almost empty. This is weird because I properly bled/ burped the radiators with coolant, and filled them to normal operating levels. The coolant spills through overflow hose. 
      anyways - I swapped the radiator because I thought maybe the bike was running hot. I purchased oversized radiators, bought a 1.6 radiator cap (with a temp gauge) and bought engine ice. The bike runs very very cool - the temp gauge allows me to see this. Still, the bike shoots coolant out of the overflow after going above half throttle, making the same weird gurgling noise when it does. Bike has all of its power, top end was replaced not too long ago. 
      I'm lost and don't know what is wrong with the cooling system in my bike. How do I make the bike stop shooting out coolant, and stop making the weird gurgle noise??? Any advice would help me!!! Thank you!