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Discussion Starter · #42 ·
Over the weekend I got her out and fired her up after sitting since early October. A few kicks and... BAM.! :ThumbUp: :ThumbUp: Also installed some new white hand guards.

Next up will be to have a new cone style expansion chamber custom made by Jon Easton from Jemco but not sure if that will be this year or not. I love this beast! Here's a short video of fooling around on it too.



I think the white look better than the blue ones that were on it before.









 

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Discussion Starter · #43 · (Edited)

This past weekend a friend and his wife and I took a trip over to Eastern, WA to go riding and camping. It was hot being close to 100 degrees but still fun. Once we got into the trees it cooled off some. The bike ran great aside from not having a strong idle at higher altitudes. It didn't do this so much before so I think it has to do with the open muffler I put on it and reduction of back pressure. I played with the carb settings a little when I got back home but may need to put a larger pilot jet in it if it does the same thing the next trip out. This was the first ride of the year with it.

Below are some pics from the trip and also a few updates I did over the winter to it. I'll start off with the updates and then work down to the trip pics as that seems the most logical.








The most prominent thing was the upgrade to a stronger front brake system. I installed a new 13MM Brembo front master cylinder and a new Venhill stainless front brake line. The stock front master cylinder was either a 10.5mm - 11mm I was told. The feel now at the lever is now rock hard and does not fade at all like the old one would do. I'm very happy with the difference.

As you might remember, I also purchased a used four pot rear caliper last year. I sent it out to a vintage motorcycle brake specialist to be rebuilt but he had trouble sourcing seals as their no longer made. He found a set that he could order that might work but they came in a kit that was quite pricey. He actually convinced me not to use the 4 pot rear caliper on a dirt bike. It's unique, but it's not desirable on a dirt bike he said. He explained that they don't even use these in professional racing because the larger size can attract more mud etc, get in the way of rocks, and just isn't practical. He said if the rear brake works fine (it does) to not go through the trouble so I've decided to leave it alone.


The bike sat for a few months over the winter without being started. When I pulled it out in the spring and turned on the fuel, the carb float bowl gasket leaked so pulled it off and replaced all the rubber seals in it. At the time, I took the opportunity to install new black vent hoses as well as the ones on it were hard and no longer very pliable.


Replaced the carb bowl screws for some allen head replacements. One thing I'll never understand is why many carb manufactures put butter soft phillips head screws on their float bowls. They torque them down from the factory and after a while they don't want to do anything less than round out like a hot knife going through butter.


Swapped my DRZ400 air filter out for a proper one made for the bike.



I've also been slowly replacing some of the old fasteners that were aged and a little unsightly in my opinion with new stainless hardware here and there.










She got dusty!
 

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Nice trip it looks like! Those upgrades are slowly making that machine yours! :)
 

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Sounds like some good upgrades!! I like that Master cylinder!! Some where on line i read the master for the Yamaha RD was on the large size so go to a smaller by a MM or two to get a good feel. I have not got to that one yet.. :tango_face_wink:
 
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