Avoid buying an obscure bike. I was eyeing this 90's Fantic near me because it is clean, very low $ and approriate for the basic plonking I do but research revealed parts availablity is almost nil. I then bought a '10 EVO and although it is considered ancient (as far as EVO's go) I'm very happy with it.
I'd say a Beta EVO of any year because the model has had a long run without major changes. Some might say this is a bad thing but it results in tons of knowledge and great parts availability. It's surprising how many parts from the years 2009 - 2022 are the same.
With a cold engine, when I plug the jumper into the connector fan comes on and when unplugged it turns off. With engine warmed up it works as it should cycling on and off so it seems good.
Starting from the thermo sensor on radiator, trace the wires back to the connector under the cover you just removed.
Fab a jumper cable and disconnect the connector.
Start bike up and plug jumper into the connector end that is coming from the CDI box near the carb area. If fan does not turn on the fan and/or thermo sensor might be in need of replacement
Last week's test ride revealed a good amount of clutch drag. It's just enough that neutral cannot selected at idle. Going to check the actuator free-play first and shim if necessary ("the mod"). Then the plates and basket
The manual of an '07 Rev calls for a BR7ES. I wonder why they changed. The tip of "P" plug extends into the combustion chamber thus taking up space and raising the compression ratio some. Maybe that was what they wanted.
Just went through a lot of this same stuff on my new bike. It amazes me how people can let their machines go. I have successfully used both a vice and a hydraulic press to install bearings. With a proper sized socket doing the pushing of course.
This morning, enlarged the pinch point gap of the shift lever, installed rear bearings and changed the trans oil. Only 400ML overfilled it past the window so had to drain some. No signs of water.
With it on 2 wheels again took it outside to feel the suspension. Both ends need some add'l preload for my weight.
Next up up is adding coolant and taking a test ride! The f.d. gearing is 11/40 which sounds fast but we'll see.
I would have guessed a 300 made well over 20 but it's not even close. The graphs show how differently trials-specific engines are tuned compared to their MX and Enduro cousins. And given these numbers, it seems crazy how 300's are often considered to be too much for the average rider.
any of you guys have entry level onstacles in your back yard? show them off!!
in General Trials Talk
Posted
Im building some now...
[url=https://postimg.cc/xcN6FLMp][img]https://i.postimg.cc/BQMRbg63/IMG-0183.jpg[/img][/url]
[url=https://postimg.cc/0rBtfVMJ][img]https://i.postimg.cc/Wb2QsKsS/IMG-0186.jpg[/img][/url]