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MikeeeP

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About MikeeeP

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    TT Member

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  • Location
    Florida
  1. Hi guys, tried to use the search function and didn't see it for this model. Are any of you familiar with this model? The powervavle itself that is in the cylinder. Do you start with that all the way at the top or all the way at the bottom ie: how do you time the two gears? Thanks it's appreciated. Mikeee P
  2. Your stock exhaust is really restrictive. Horrible pipes really... the FMF will had a nice boost of power everywhere! You should consider that next... It's a really nice performance increase. Mikeee P
  3. MikeeeP

    yz 144

    You should be able to stop by any decent sized shop and have them check their PARTS UNLIMITED OFF ROAD catalogue and they'll find the athena kits and gasket kits in them. I don't have my catalogue in front of me or I'd give you the part number. Despite the troubles you're having right now - I've owned so many 144cc kits it's unreal. They don't wear out any quicker than a 125... Have fun when you get her all fixed up. Mikeee P
  4. MikeeeP

    Power Valve Alignment KX85

    Attaching it is no problem - what I need to know is when you slide the shaft down into the engine cases can it only slide in ONE way or since it's a splined (gear style) shaft, does it need to be aligned back one tooth, or forward one tooth or ??? I have it hooked up, but what I don't know is if it's on the right spline/gear/tooth down in the cases. I need to know what angle that arm should be pointing in at... So that I know if it's "timed" correctly opening an closing the valve properly. Thanks Mike
  5. Hi guys, I did a search and though I'm sure it's there, the search function didn't seem to be working when I tried it... Helping a kid with his KX85, and I rec'd his engine already torn down. When I put the powervalve back in and slide it down through the cases, how do I align it properly and/or how do I make sure it's timed right? Natural instinct says that the arm should be pointing straight in towards the cylinder, because that way the linkage mounts right up to the power valve when it's pulled back - but that might not be correct... Someone clue me in and thanks so much for the help. Mike
  6. MikeeeP

    Wow!!

    And the cool thing is a Super Mini absolutely DESTROYS all these bikes when it comes to hp per cc. Imagine a 112cc super mini puts out 30hp. Now CBR1000 div by 112cc = 8.92 So you multiply that 30hp that a super mini makes by 8.92 and you have 267.85 horsepower. Imagine if a CBR1000RR were putting out that kinda power! Those little super minis are wicked for there size/displacement! I just built one for a kid today and it's amazing how fast they are for such a tiny engine! Mike
  7. MikeeeP

    BBR, (Buyers Beware Run!)

    It looks pretty obvious what happened from the photo. The lever was not put on all the way. It has to be slid on pretty far, and then the bolt put in to match the shaft - this lever was put on partially, and then tightened down so it would hold - or so it appears... but if someone brought this to me, that's exactly what I'd point out to them. If this lever were all the way on, the entire lever would be stripped not just the inside... that's what gives it away that whomever installed it didn't get it far enough up onto the shaft. Mike
  8. MikeeeP

    2003 YZ450F seat question

    Posted the original note on Jan 7th - looks like I jumped right on this project didn't I?!!! Got swamped at work and never could get to it until today... I just today (minutes ago) finished lowering my 2003 YZ450F... It worked out MUCH better than hoped for. The stock seat gets thinner and thinner towards the top - uncomfortable considering that Yamaha foam is only one step softer than concrete! My bike had a TALL seat on it - so it worked out FANTASTIC! By trimming it down quite a bit, the top of the seat was much wider than the stock seat foam... I was then able to angle the sides down and sculpt it somewhat... it looks a little "freestyle" but it's surprising because when you sit on the bike it feels RIGHT. So even though it looks thin, there is actually several inches of foam under you at the arc between seat junction and tank... Sits almost as well as a Honda CR two strokes foam, but not quite as soft. I'm pretty stoked, it worked out much-much better than I first expected. I didn't cut the little striations 1/8th" to 1/4" deep to soften the foam like I mentioned above - but wish I had. It would have made the seat perfect. I have some photos that I'll post a bit later - it looks a little freestyle as mentioned, but I'm no longer ON TOP of the bike, I feel like I'm sitting on/in a motorcycle which is much more confidence inspiring. Mikeee P
  9. MikeeeP

    Lower 2003 Yz450f

    The seat isn't a bad mod though - I just today (minutes ago) finished lowering my 2003 YZ450F... It worked out MUCH better than hoped for. The stock seat gets thinner and thinner towards the top - uncomfortable considering that Yamaha foam is only one step softer than concrete! My bike had a TALL seat on it - so it worked out FANTASTIC! By trimming it down over an inch, the top of the seat was much wider than the stock seat foam... I was then able to angle the sides down and sculpt it somewhat... it looks a little "freestyle" but it's surprising because when you sit on the bike it feels RIGHT. So even though it looks thin, there is actually several inches of foam under you at the arc between seat junction and tank... Sits almost as well as a Honda CR two strokes foam, but not quite as soft. I'm pretty stoked, it worked out much-much better than I expected when I first posted on here quite some time back. Mikeee P
  10. MikeeeP

    Sweet 450f!

    Just had a chance to go do a close up inspection of one of the sweeter YZ450F's I've ever seen... Doug Dubach came to Florida and raced the Winter Olympics (Mini O's) and the bike is sitting at a friends shop. He took me out and we checked it - first thing I noticed were these odddd looking forks (I knew what they were). The bike is all white with red graphics to make it look like the original YZ400F... The forks - factory suspension straight from Yamaha! That's what I liked! LOL Doug had a nice carbon/ti I believe pipe on it - he had his radiator lowering kit on the bike though the new bikes have lower radiators - he had a locking adjuster on the preload spanner so it couldn't back off as the new bikes have only 1 spanner... I'll get more time to check it out in a few days - I'll have to slide over and take some photos of it. Yes they offered to sell it to me - NO I couldn't mortgage the house to buy it! hahaha Mikeee P
  11. MikeeeP

    Anyone ever ride a CR480r?

    Ferd - not a comment to you but whomever might have written the article you're talking about - I stopped at this post so possibly someone corrected you - the Honda CR480 is one of the most sought after post vintage bikes of all time - it was the cream of the crop in 82 and 83 especially - super fantastic powerband, great handling - good suspension... The 83 was far superior to the 82 model - the 84 was a HUGE step backwards in that it had terrible power - it hit so hard that everyone and their brother had to take two head gaskets, copper kote them together, run less teeth on the rear sprocket etc, etc... violent bike the 1984 model! LOL No question - if it's in good shape it's a really fun bike to play on and Post Vintage Race. Mikeee P
  12. I was playing around and mentioned to you guys I was going to have fun with this build up - and did a bit of a funny story on it over on FreshDirt.com Well I talked to Craig Mason tonight at Fast50's and he's going to do the 117cc build on the engine - bore the cases etc, etc... Between Trail Bikes and Fast 50's this is starting to shape up like a really fun project! After that who knows - might be fun to see where this leads. Basically stock chassis with trick motor to start (just an inexpensive Pro Shock & BBR springs in the forks)... I think I'm going to have even more fun pulling this off than first thought! Mike
  13. I think you hit the nail on the head - and the thing is this - if your bike has been raised 2" in the rear due to a shock or whatever method - then your "ratio" is not stock. Your swingarm would have to be at exactly the same angle as stock to be at the same ratio. That's what kills me about the BBR link that's supposed to give you more seat height, and the Kouba Link (spelling) which is supposed to lower the bike. Both have an affect/effect on the ratio of the linkage - is it better or worse is the question? Most linkage is "supposed" to be soft at extension to absorb chatter bumps and smaller bumps, and then the idea is to progressively get stiffer and stiffer. They along with the shock valving don't always work that way, but that is the theory. So how will it affect your bikes handling and suspension? Your weight, riding style and valving on your shock are going to be the only answer - in other words, how the bike feels to you. It's good to get the front end back with the correct rake/trail - but that along with the amount of sag will have little affect on your linkage ratio which will be determined by your shock length, shock mounting points etc... Curious how it works though. Mike
  14. MikeeeP

    CRF 150R/Expert is here!!!!

    I think the one thing we have to realize is that 10,000 RPM on a 4 stroke isn't like 10,000 on a 2 stroke. The two stroke actually has a power pulse hammering the engine 10,000 times in that minute! The four stroke only has it 5,000 times in that same minute. So the thumper does have the "wear" and "damage" that can occur at high RPM's, but it's not getting SLAMMED by that massive power pulse but half the amount of times that the 2 stroke is. Knowing Honda - this engine has over 1,000 hours on it in Japan on 10 test mules strapped to a bench or dyno or something... The heads were soft on the CRF250 but they were reliable. The CRF450 has been bullet-proof. I have a feeling this little guy will continue to be pretty bullet proof although. This is going to be interesting - eventually all the fast 85cc racers will be on them - Honda will make a few races them immediately -but- it's going to be the slower classes that really benefit. Kids that were struggling are now making twice the midrange as their buddy on their trick CR85, so they can rail them in turns, out torque them on flat corners, roll it on through whoop sections... the lesser classes are going to get fast. The fast classes are goign to continue to be about the same speed until this bike gets faster riders learning how to use the torque and midrange it will have over a standard CR85 etc... Doug Henry didn't kill everyone back in the day on the YZ400. Then he realized that instead of following the standard lines he could go to the inside and jump the same jump that others were having to rail the outside for. He discovered that he could go a gear high in the whoops and sit on the rear fender and just wail past other riders. He realized that the unmakable jump in his mind was makable due to the traction and torque that the bike had... so the fast mini riders will figure it out and soon the mini class is going to be faster than ever! MP
  15. I guess that is the question - what is the valve size? I see the new TB head has 25mm & 22mm valves. What comes stock in the CRF/XR70? Mike
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