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About Boit

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    TT Gold Member
  1. Boit

    Why heat up bike to change oil?

    If you've ever seen an engine that had cold-oil changes, you would always warm your engine up before changing the oil. Fine particles of carbon and dirt will settle into the corners and bottom of the crankcase over time on cold-oil engines. By bringing your engine up to temperature, you help in keeping this sludge from building up over time. As this sludge accumulates, everytime you run your engine, this sludge gets stirred up and circulates through your engine. The filter can't catch everything and these fine abrasive particles are circulating through your engine. I worked at a fleet maintenace shop years ago and it was easy to tell the difference in the fleet vehicles that had hot-oil changes versus the cold ones. Experience is a great teacher.
  2. Boit

    P-38 and PowerNow

    The P-38 was initially designed to eliminate an annoying hesitation associated with early "F" models, especially the '00 426. The Power Now is supposed to help with throttle response and power at low throttle openings. The P38 totally cured the hesitation on my '00 but I haven't installed the Power Now yet for the claimed low-end boost.
  3. Boit

    00 YZ426 engine noise

    My '00 YZ426 still sounds tight and new...even after about 140 running hours. I'm still on the original key. I'm not sure if my maintenance schedule is the answer but I've changed my oil after every ride. Yep, every time the bike was ridden.
  4. Boit

    VP Ultimate 4

    I prefer MR2 for the low-end crisp throttle response.
  5. Boit

    pre race???

    As someone who is naturally nervous to begin with, I've learned through experience to try and concentrate on having fun. If I allow the seriousness of the race get to me, I get far to edgy and then can't have fun. For me, there is a balance of the fun factor and the intensity of the anticipation. Now that I'm an old geezer, I know how to put the fun factor at the forefront. I don't know how it is for other racers, but once I get on the starting line, the butterflies in the tummy seem to subside and then I just simply concentrate on having a blast. Actually, I use the nervousness to my advantage. I've noticed that as I look down the starting line, ALL the other racers fidget and show their own nervousness so I use that to relax me. I guess you could say it eases my nerves seeing that the other racers get nervous too. Hey, you gotta find what works for you. There is NO magic answer that works for everybody. I would suggest that you use your nervousness to your advantage. It should energize you, but not the extreme that you pump up.
  6. Boit

    Plug changing

    When it comes to routine changing of the plug, here is what is important to me. Some crud seems to build up at the base of plug and it needs to be removed so that trash doesn't fall down inside the spark plug hole and cause premature wear of the cylinder wall. What we are looking to achieve here is cleanliness. So, the first step is to blow out the area around the plug by shooting some compressed air through that little bleed hole of the right side(rear brake lever side) of the cylinder. Once the plug cap pops up, remove it. Now, move your eyes to the side and shoot some air through the bleed hole to clean way debris fom the area around the spark plug. Here is where it gets critical. Loosen the plug and stop. Now, shoot some more air through the bleed hole again to remove small particles that have been loosened by the socket turning the plug. Shoot some more air through the hole again. (Protext your eyes). Now, go ahead and remove the plug. . . .gently. Try not to shake or vibrate dirt from the plug during this removal. Why? It should be obvious at this that cleanliness is very important.
  7. Boit


    I believe that the lifter referred to is the bucket. There have a been a few instances of the bore not being machined properly from the factory and the bucket has seized...or caused a sticking problem. Sometimes, these little bore imperfections can be polished away with a Dremel tool and some lapping compound. Gotta be gentle, though.
  8. Boit

    Help for a leaking petcock

    When I installed a Pingel high-flow petcock on my '00, it seeped a little right away. The problem was that the Pingel flange didn't quite match the stock tank relief. I had to carefully trim the Pingel supplied rubber gasket to fit flush inside of the relief. Sometimes, you simply must be inventive and adaptive to get things to fit correctly. If you can work your way through these obstacles, you end up improving upon your talents.
  9. It wouldn't hurt to try a 178 main and see if the sootiness dries up. It the soot comes from a rich main jet condition, you should see the exhaust color slowly change to a dark gray. I use VP MR2 fuel exclusively and my exhaust tip is a light gray. You could even try using this fuel pure and see if it clears up the exhaust since it is oxygenated and will act like going to leaner jetting.
  10. Boit

    Fresh off the Yamaha Fax line

    Yamaben....I was not nor am I angry with anyone or any manufacturer. I was merely stating my opinion. As far as loyalty goes, I think it's a two way street between a manufacturer and it's customers. Personally, I feel that Kawasaki has earned a level of loyalty from me based on my experience with them. They replaced a crankshaft on my '94 KLX250 with a '95 crankshaft at no expense to me even though the bike was over year out of warranty. The connecting rod big-end bearing had unusual galling due insufficient lubricating holes that were machined 90degrees to the shaft instead of at an angle that would have scooped oil into the bearing. The factory rep stated to me that Kawasaki was committed to make things right when they were at fault. I wasn't even looking for them to foot the bill, but the rep insisted that Kawasaki make the repairs at their expense. I even offered to split the cost 50/50 and he refused. That made a deep impression upon me and would be riding a Kawasaki 4-stroke MX'er if they offered one. I don't have anything against Yamaha, I thoroughly enjoy my 426, but I have no feelings of loyalty to Yamaha. If I could, I would buy all my bikes from you as I find you to be a top-notch dealer and human being.
  11. ....and exactly how does one adjust the timing?
  12. Boit

    timing chain

    I saw this very issue addressed on another site and I also wondered about the cam chain. A reputable engine builder said he changed his cam chain once per year even though he felt that this chain is very strong. Even though this chain appears to be quite stout, it DOES get subjected to severe jerking and probably needs to be replaced periodically. Once per year seems about right to me also.
  13. Boit

    P38 lightning

    I installed the P-38 on my '00 426 before the GB mod was known. Along with using VP MR2 fuel, jetting crisp, and this plate, I have an engine that is absolutely perfect. What is phenomenal is the low-end throttle response. It never stalls and the engine barks with authority right off idle. I've heard that not every P-38 will work with every bike. You might get one that doesn't work. R&D will work with you to get you the right size. I got lucky.
  14. I have an idiotic brother who wouldn't hesitate to jump on my bike without permission and go for a ride. What I like about my 426 is that he can't start it because he doesn't know anything about this machine. I would NEVER change to an automatic compression release now. The last time he wanted to ride it I told him that he could ride it if he could start it. He made an ass out of himself trying to get it started. He reminded me of the hillbilly hill climber in "On Any Sunday". He nearly broke his leg.
  15. Boit

    Anybody ever ran into this

    Was the bike being ridden in water deep enough to reach the bottom of the frame? The reason I ask is if the water is high enough to reach the crankcase vent tube, the water acts like a seal and prevents crankcase ventilation and oil may not lube the cylinder head and the cylinder bore properly. All YZF's were meant for MX racing and not trail riding or riding in deep water. If you want to ride the bike in water, "Teeing" off on the vent to tube can prevent these problems. It's especially detrimental to have the engine stall and then try to restart if the stock vent tube is low enough to be submerged in mud or water. Installing a "T" in this tube and running the added section up under the seat can prevent this problem.