Z's rule R's blow

[dads]

Now that I got your blood boiling and your attention.:D

This post is meant for info purposes only. If your looking for a pissing contest take you queer bate azz to fight club.

What I am looking to see is what probs you have had with your 250 2 stroke trikes .
Parts that fail to quick, things that break, what you were doing to make them break and so on. What I’m looking to see is if it is a manufacturers prob or a users prob. I will post any changes I come up with to modify things to get longer life out of your parts that fail. Please tell if what failed was a performance mod. All info will be helpful to make determinations Thanks AL
:)

[fishinmagician]

Nice thread name! Even if it's not actually true. I can fill you in from the Tri-Z side. The biggest "problem part" on Tri-Z's would probably have to be the impeller oil seal, it goes out too often, and is a pain in the butt to install correctly. If it does go out, the impeller seizes and you've got a wonderful overheating problem.

[Caterpillar]

The 85 Honda 250R is solid, with routine maintanance it will NEVER fail!!............... Slontchyaa!! :demon:

[dads]

Fishin - have you ever changs the bushing the shaft goes in too.
If so how long till seal went out after?


Caterpillar - You have to ride it for things to fail. routine maintainance - Nowlets see the way people complain about carreir bearings on the R going out to quick you must change yours every 6 months and call i routine maintanance. or your running a after macket 4 bearing carreir.

[fishinmagician]

I'm pretty sure I installed the seal wrong the first time, the little spring always wants to come off the back side if your not careful. I replaced the bushing at that point. I have to guess, but I think the impeller seized up the second time I rode it after that. I though it was some other cooling problem, but the impeller had seized, and broken off a handful of teeth of the gear that drives it.
But since the rebuild, I haven't had a lick of trouble with it, which is quite nice.

[atc330r]

problems here have been. with wiesco pistons.in the 70,s early 80,s ( before water cooling ). wiesco was the only way to go, but now there garbage on a air cooled bike of any make. even with oil holes. you can look at them ( the color and see they change the compond in there alloy. they just expand to fast, for the heat of an a/c. again on the honda 250r a/c the flywheel side of the crank seems to ware quick causing the shaft to spin in the bearing.then burning the seal. then theres 3rd gear. weak factory axle. the h2o 250r seems like its the counter blance bearings. cranks not quit as bad. the brakes and axle bearings. thats on the driver :bash:

[dads]

They change the piston do to the lack of heat. the prob they have with water cooling is the operator. water cooled eng have to be wormed up before you ride. snow mobles had the worst prob . people jumped on them and got on it before worming them up, the piston expans quicker than the cooled cyclinder and seasup.




Fishen the bushing and the gear are the only things that holed the impeler shaft strate if ether have wear the shaft will spin untrue and the seal will fale to quick. you must have had a bad part that keeped takeing out the seal

[Black Sheep]

the number one cause of axel bearings failing is due to overtightining the axel nuts which in turn binds the bearings. i've had my 250R since it was new in 86 and i have not had one mechanical failure.

[ATCnut]

I believe that water is also a factor in rear axle bearing failures. I've gone to Oregon in the spring several times, and that is sometimes referred to as "Dunk the Bike". I end up riding through a lot of water. There were several 350x's going for a few years, and we had a few rear bearing failures. When they were disassembled, there was a lot of rust and crap in there. We added a step to the maintenance after spring riding of removing the axle and making sure it was dry in there. That added a lot of life to the rear bearings.

[atc330r]

yes the alloy has been changed in the pistons. problem is wiesco change it in all there products. which screwed the air cooled people. if you running a stock motor you may get by with a wiesco,but as soon as you start flowing more air ( via carb or porting, reed cage ) you will melt down. what i have not done is breakin a piston on a stock motor. then use that cylinder & piston in a hot motor. there is a guy on ebay that sells venolia piston ( old time piston 60/70s no rings or pins) i,ve ask if he knows of any rings that will work. ho wont answer me back. i,d like to try one. axle bearings can be taken care of by adding a gearse zerk in the carrier. i need to change them in one of our 250rs after 20 yrs, its because of water ( rust)

[dads]

On the pistons , He proble does not any more than what is on the box thats why you get no reply. if they are for a 250r they proble take the same ring. Unlike the USA they don't seam to make needles changes . it would by nice if you could get the groove size, the rings are about 5 thousanth less