Hi mike will the 520 chain clear the gearbox oil seal with the small sprocket Stan
Hope so Stan, a sprocket isn't too expensive if it doesn't work. XR 250 can have a 12 tooth sprocket. It'll need a circlip to hold the sprocket on though.
Yes, it's not a five minute job! The chain seems to line up with the rear wheel after initial tape measure waving. The engine needs to drop and I think things will line up. The bottom frame tubes might go and be replaced with a good solid skid plate. If I need to the front down tube will be cut and replaced with twin down tubes somewhere below the twin exhaust ports which exit either side of the down tube.
Carb will be interesting.
Hi Dave.
Did the obvious regarding the sprocket (with hindsight), got in touch with Talon so that should be sorted. They said TG314, 11 or 12 tooth with a 520 chain, result.
Sorry big mike been out all day. Will measure first thing in morning. It does look the same. Dave.
No problem Dave, I've been messing about to see if the engine will fit in the frame on and off all day. I think it will but the frame will need a bit of cutting.
I use a 10 tooth on my SL230 trail bike and keep it in place with circlips. I think it's of a scorpa. Part no is TG451 made by Talon. I don't know if the shaft is the same size.
Any chance you could take a measurement or two of the sprocket?
I found some images but need a measurement of the gearbox output diameter to see if the sprocket will fit. If the measurements match the second pic, brilliant, third pic no go but thanks for your help.The output on the xl engine is definitely 25mm.
I've bought an xl250s motor for a project and need to gear it down for trials. Anyone got any ideas for a small front sprocket, somewhere in the region of 10 teeth? Does it match anything off the shelf?
The right leg with the damper was the most trouble - difficult to get all the oil out. The damper rod stays attached but the tube slides down, pumping he damper seems to get most of the oil out. Volumes of oil given were too much so I went with height from the top of the tube. Have to see how it rides next trial.
Round that corner right off, I did. It's solid, there's no risk of going through the casing. The rubbery support is Scorpa's way of trying to stop the engine casing poking through the exhaust. Mine looks just like that.
Do I Need A Chainguard
in Montesa
Posted
Splendid bike.