lineaway

Just curious how many pro motors have you repaired since 2002? Do you remember the crap shift drums and all the plate changing on clutches the first few years? When was the last time you replaced a complete tranny on one? HMMM? It`s been about 90 days for me on a 2010. You just seem new or lucky.

The clutch always has a lip of build up on it. The drain plug will usually have a small amount on it. If you ever have anything bigger on the magnet then you could be in for trouble. Sounds normal for a pro motor.

They are as bad as you think. The 300 is the worst. Mainly the kickstart. We have six 2004 300 in the club. Three of them have never had a problem. The other three have all had the clutch cover break. Shift shafts replaced numerous times and of course the kickstart gears. Even seen problems with newer bikes, but they have slowly gotten better. On the plus side they ride very well, make great power and are light and inspire confidence to the rider.Reliable? No.

That was almost funny, I knew I used to were one. I have not wore one since my desert racing days. I rode trials before my go fast days so I never considered wearing one. I would try both ways. Actually I need a girdle or it would now take at least two belts! Any how to correctly ride trials takes alot of body input. (the new bikes make it so easy most new riders never learn proper body english) If you watch a rider with a proper stance they seem to over exagerate every movement. But also notice they rarely need to dab. Trials takes alot of range of motion that cannot be done with all the gear our go fast friends use!

The beta guy from north yorks is correct. But understanding how hard the cable types are to pull the best thing is quality levers and perches first. Secondly 99.9 % of all clutch arm extentions were with bolt on items that could be removed and or modified for the user. Changing the stock arm might not be the best option as all ty parts have become crazy money. Unfortunately I can not find a picture of this mod. John? Are you riding vintage, modern or just having fun? Great bike! Last month I rode a `like new` example for two days chasing my son. Still smilin` Ps part is unavailable . arm is now obselete in the usa.

You need to buy a rod kit , top bearing ,piston clips,main seals, center case gasket, base gasket, and clutch gasket from a gas gas source. The main bearings should be available at a better price. You did not mention year, but should be the same for all models. Not a cheaper way around it at this point unless your dealer can also do the rod rebuild. You could replace all seals, and other parts also but is just preventive for future use.

You can `save` the pads by burning off the oil.

did you say you sprayed wd on the brakes?

If it is a constant tick related to engine speed perhaps the primary gear on the clutch has picked up some debris. What happens is a piece off the half moon kickstarter gear travels to the idler gear then becomes inbedded into the primary teeth. It is an annoying sound once you realize it is there. It can be very hard to find, sometimes a magnify glass is needed and go tooth to tooth. I have seen this three times before, twice on the pro motor.

Thanks for that,Martin! Nice shot of Whaley on the Honda.

Without looking it up ,I want to say it could be center cases. I fixed one with jb weld (epoxy) and last I knew it was still working after ten years!

I always loved that bike, but had seen one corroded through. Pull the water pump cover off before purchase. The suspension front and rear was great for a bike from that time. There used to be some great video from jordi torres on that bike!!

Buy the 225 kit for the 125.

The newer gassers actually lube the main bearings from the gear box oil. Dad is more right on this one.

Have you ridden them, the 88 rode like a ty 350 (nothing wrong with that if you want) The `89 was the first water cooled (large) 90 (large marginly better. 91` green theme still big. `92 and 93 much more compact and actually the 94 was the best but now with the new gassers out was considered still bulky. I have owned quite a few, but the `93 was my favorite!

`92 or 93 Aprilia was a fun bike. The earlier ones not! The fantic would be easier parts wise.

80:1 fuel. 4-5 rear tire, 6-7 front. Beta had a good manual with weight versus settings if you can find someone with it.

All the magnets were good and tight your good. Just pointing out what goes on `em. Still have that strange noise?

What I was saying, no one that is trying to be competitive in the upper classes rides one. If you like a well made bike that will last forever buy an old honda. The 4rt will not last as long! Yeah there are a lot of mis- led riders riding a brand instead of what they need! PS I just became an ITSA memeber and my montesa broke with in just a few days! Coincidence? (`81 cota 200 owned for 12+ years and never repaced a part) Hope all this love is short lived

HMMMM, maybe you should come out of the closet. (Bring your purse and best dress). No one in the US has ridden the 4rt in 5 years! Check out the british scene. Oh yeah, yeah Dougie on the factory bike! The bike is not that competitive Honda boy!!

We had two in our club. Our first lady rider(that could ride) her number plate had a boy named Sue. If you look real hard it can be found in the book observed trials just for fun by Carl Shipman.

There is only basic info in the manual. Applies to almost any bike, but some info is better than none. Tried to post at work , but this new system kept locking me out. Guess it does not like that I use more than 6 IP`s. Light gear oil, bel ray 75 to 80 wt, Maxima same or good ole 20-30wt what ever. Any way I would pull off the right cover which has the stator on it. Nothing worse than bad mains on the aprila destroying the stator and ripping off the magnets on the flywheel at the same time. Once off give a good tug in every direction on the flywhee,l if if you have movement you have bad mains!

If you are going to hop and ride trials, The Beta. If you are trail riding or a lower class rider just having fun the montesa 4rt is the finest bike so far! I know it sounds crazy to some people, but a stock 4rt will wear you out and the Beta works very well. Now if you could have Bou`s bike that would be a whole new story.

Takes 1 liter. The drain is the allen head. If you removed the bolt under the shifter that was a dedent for your shift drumand the stop for the kick start spring! 80:1 if you want to ride trials. 40:1 if you race trails.

Maybe the washers. Double check a parts diagram.