lineaway

Slicktop. What marine applications have brakes? I suppose some could on the shaft?

The question would be why you took it apart?

I re-jetted my sons Saturday. There is a screw under the air filter. It all comes off easily. Going back together is another matter. Good Luck.

It RUNS! All gears, and no unusual noise.

Should be no reason to take the fork off. Take the shock apart and everything should come off the other end of the shaft. Once the seal head is off, remove the seal and o rings and dust seal and go to a hydraulic shop to match up the seals. if I remember right, you will have to install your own schrader valve.

The R37 is probably from the new JTR370 cylinder in `96.

The correct gears showed up right on time. This time tomorrow I should have a running bike again, unless I missed something..

One of our best riders in our country has ridden the 4T in competition ever since they started. He has always run the stock shock. Proper bike prep is critical. But there is nothing wrong with the stock set up.

Might try this. http://www.trialscentral.com/forums/topic/41556-one-hot-honda/#entry404970

I do not own a 4RT, but I ride them frequently. (My boss has five of them and several on order) Usually when hot and they don`t start, is because I kick them like a two stroke. Just, slow and gentle and for whatever reason they fire right up!

Parts ordered and will be here Wednesday. Gotta love the American importer as he has always had everything in stock unless the factory was behind. By the way he will be the new TRS importer. Now if everything goes smooth, the bike will run like nothing happened. Ended up with a five day weekend to get my boy to the event. Helps that I work with five other trials riders!

Normally I might blame the Pro motor, but a double wrap around the countershaft sprocket, binding both the main shaft and the shift shaft could break any brand of bike. For some unknown reason my son has caused more damage in our yard than anywhere else. Plan to two day the parts in the morning, which gives me Wednesday night and Thursday night to make it a runner again for next weekend.

I made the mistake of taking off my gear to go score comfortably. I quit bleeding 30 days later. 3 layers of stitches, a drain and a p****d off wife. Turns out the old Beta starters are quite sharp. And my wife is still mad 20 years later about the bed sheets!

So I got going early this morning and pulled the motor with my son`s help. 2nd gear is the only damage, put`s me in a bind for our two day event next weekend. Hopefully have the parts Wednesday night.

Thanks, but this is far from the first Pro motor that I`ve been into. It started from this.

Yes there was a time I was stuck thinking that way. Seems about `96 I started jetting my mikuni`s with a 30 pilot. During my rev 3 years I even had a few bikes running a 35. Now a days the Keihin on the gasser gets a 120/ 50 combo at home. About 8000 I switch to a 115/50-55. Above 9000 a 110 main. At about 3000 feet I go back to 125 and 48. Also remember the bikes have come with too lean of pilot jet stock for many years now. And we are talking trials motorcycles.

My son goes for a quick ride in the front yard, endos over the bars, throws the chain and breaks the bike! All this evening and we have a two day event coming up next weekend. The chain wrapped twice around the front sprocket. Removed the shifter and sprocket and all is good? Not. Now a knock from the motor. Ten minutes later, I`m looking at the top hat and all is good which means I have to split the cases in the morning, so much for the 5 other bikes I planned of working on! I`m hoping it`s just the shift shaft or next weekend will be our first missed event this year. Till tomorrow.

Wpatterson is correct. Check the carb boot. That is a lousy tight fit and tears easily.

I would double check connections and grounds/kill switch. Also replacing the condenser.

If you were going down hill for an extended period of time, at an idle or just barely more you may have nipped the piston. (stuck the rings) Due to a high revving motor without enough lubrication. Every year we have at least one rider do this as we ride on steep ski slopes. PS the solution is you have to gas the bike going down hill.

Quit reading a book for jetting. I live at 6500 and ride mainly from 7000 ft to 13000 ft. Dropping a needle only at altitude without jetting does zilch. You go up in pilot jet size (Loss of atmospheric pressure if you have to have some logic) down on the main jet. Also riding at elevation is very hard on water cooled trials bikes as the cooling system cannot handle the demands on the motor.

You did not look before you bought. Trials bikes are very simple, same, same for many years and manufactures. http://www.sherco.com/tl_files/core/pdf/manuels/2012Manual_ST.pdf Close enough. First you need to ride the bike and break in the suspension. Remember the biggest thing in trials suspension is the front and back need to work together. Besides jetting a 2 stroke, they require very little maintenance. Funny how the 4rt crowd says the bikes reliable like a clock, but all they do is talk about adjustments.

If you unloosen the kick starter bolt two turns and then flip the lever out as you are starting it, it levers itself off the shaft. All in a few seconds.

The first thing you do going up in elevation is go to a lager pilot.

Really? You live in Arizona. Every rock and bush will tear a pair of wimpy trials gear in one crash. Let alone your leg. Buy MX gear and remove all the labels and pads. Better to slide than a trip to the ER. I hate to say, but I laugh every time a guy crashes wearing trials pajamas. Just silly in the terrain we ride.