mcman56

I finally got my C15 together. Thanks to those on the forum that provided input. So...what should it run like? I need to do some more tuning and I have never ridden a TL125 but it runs like a TL125 sounds. It is super smooth and pulls smoothly and strongly from very low rpms but does not respond quickly. It takes lot of effort to lift the wheel 1/2 foot. (Bultaco front end/ wheel with steel BSA tank) It has the standard cam, big valve/ small port head, Kehin 22 mm carb and an ignition with no advance...set at full (I believe). 18 tooth motor sprocket, 13 tooth trans sprocket and 54 on the rear. I was expecting some quicker response like a TLR200.

Yes, the kicker sticks out quite a bit to clear the foot rest. Plus, the clevis must add some stress. I remade in steel, made it slightly thicker and tucked in the kicker about 1/2" so hopefully it will hold.

I have a 1960 C15 and it has a tube comming up from the bottom for setting the gear box oil level. Is there a dipstick available that will work from the fill plug/ breather hole? It looks like they came on the 250s in 1967 but the fill plug hole is vertical rather than angled on the later models.

I had a 2002 with a non rebuildable shock. Parts were available and it can be done. There was some input that it would soon fail again but it has been about a year and I ride some every week. See the link below. http://www.trialscentral.com/forums/topic/28332-shock-rebuild-in-us/page__p__232017__hl__*mcman56*__fromsearch__1#entry232017

This is for a Reflex and I don't know if the TL is similar. It fits the factory mounting points. Dan

I have an 02 and sometimes get the same knock when chopping the throttle off at sea level. The timing is retarded and I think the pilot is a 34 or 35. It is a little lean at sea level but starts and runs fine so I don't see it as a problem. This jetting allows it to run clean from sea level to 7500 feet.

Thanks for the input. What year was your 4t? Did it have the suspension linkage? How does it do on big rock steps...compared to a two stroke? I guess that is my real concern.

Paint a white dot on one of the blades.

I had bronze bushings made for my Gas Gas (left) and Sherco (right). They didn't last as long as I expected, maybe I didn't grease them enough, or the weren't a strong enough material. But they outlasted the needle bearings by about three times. Someday, when I'm feeling ambitious I'm going to try it again with a harder bearing material. I just noticed the last picture still has bearings on the sherco links, that was the 'before' photo. The picture of them installed on bike is the bushings. You have to use a grease gun with a flexible hose to grease them. EastCoastHopper, What material did you use? I did the same thing using 660 bronze and they do not seem to wear at all. I did put a grease groove in the middle so grease can get all around. I also angled the front fittings down so they get greased from the bottom. Dan

There is a company on ebay that sells after market rebuild kits that include needles. They have numbers for the different needles but I don't know how to interpret them. I have an SL125 needle in my Reflex. It provides adjustment that the original Reflex needle did not. AFAIK only the original #38 pilot jets are readily available but you can drill them out with something like: http://www.use-enco.com/CGI/INSRIT?PMAKA=300-0019&PMPXNO=945609&PARTPG=INLMK32 Dan

Can anyone compare a 2008 250 4t with a 2002 Sherco 2.9 that has the timing backed off? power? suspension? handling?

I usually ride a Sherco and had a good year but am not JW. Where could I find a picture of the TL heat shield?

Off idle stumble is a known trait of the single cylinder Hondas......maybe all single cylinder 4 strokes. It i snot uncommon to see them go pop and stall in sections. I have a Reflex and a slightly larger pilot jet was the cure for it. Although, it will occasionally stall when the throttle is chopped. It requires a triple blip technique with the third blip to prevent the stall. I'm also in Nor Cal and when the motor gets really hot the idle speed will change but I don't get the stumble. I could not find a source for larger pilot jets so drilled out one the the 38s.

Aluminum was adequate for a while but eventually failed. The kicker arm had to come out pretty far to clear the foot rest so that added a lot of leverage. A thicker wall with a radius on the step would have helped but it looks like steel would be best. Has anyone been successful with Aluminum?

In the US it is Veterans Day but I did not make the connection. Thanks!

Can someone explain the "We Remember" with airplane on the top of the page?

Does anyone know where I can get the drain screw for a TLR200 (Reflex) carb? If not how about a TL125? It is similar enough that it should work. It is an M6 - .75 by about 6 or 8.

My air filter assembly has a potential leak near the front. See the picture. Am I missing something? Should there be some sort of cage?

Charlie, I'm now trying to start the bike with the Keihin. I have gotten a few "pop, pop, pop"s and one with maybe 7 pops but she does not start. lean maybe? timing a little retarded? There has been no spitting back through the carb and no kick back. Do you have a starting routine to recommend for the Keihin? I know my TLR200 wants to be started a certain way. I have zero experience with British bikes and just put this one together so it could be something else. Thanks, Dan

Yes, it is possible. I folded the top front frame mount forward to create a mounting tab and made the two other mounts.

My C15 project is at the point where I need to mount an "inside the frame" exhaust to get leg clearance. This is a 1960 goose neck type frame. The oil tank has been moved in and slightly forward. See the pictures. (The oil line is not as close as it appears.) There is a section where the pipe sort of steps up and out. It looks like it may be possible to cut and rotate that section so it goes in an down. Has anyone tried that? Or...is it basically easier to build from scratch? Any advice on either option?

Could it be over stressed due to coil bind? Maybe the spring does not match the shock.

Did the brace help? Is it steel? What diameter is the rod? I need to make a brace for something similar.

Is that a Yamaha fork brace/ fender mount?

California requires registration to ride off road vehicles on public land. Bikes manufactured after 2002 have to go though some type of EPA "qualification" to be issued a registration with no restrictions. To my knowledge, none of the trials bikes have gone through that qualification. Some would most likely pass but it is probably not worth the manufacturers effort. So, bikes 2003 and newer are issued a limited (red) registration. Basically they can not be ridden in certain areas during summer (high pollution) months.