dirtrider6

He did say that he talked to another Montesa owner and he said to add an extra 25cc-50cc of oil to make it shift smoother he did say that helped also. Bike was a big hit lots of people stopped to look at it and ask questions, two of our club members that are bike enthusiasts took it for a ride in the parking lot and loved so much asking if I ever sell it to let them know. Hope you finish yours and get it to a show

Oil changed in the gearbox and it is definitely shifting better Took it to our car clubs (Hi-Lites Motor Club) first show of the year and it was a huge hit everybody loved it

Hoping the oil change makes the difference, bike was completely rebuilt never really ran and stored until I bought it, all done by an excellent mechanic

From the first initial ride up in the mountains behind my house

Definitely going to switch to this oil as I am also having the issue of it jumping out of higher gears, thank you so much for taking the time to post this

I may have to try this the false neutrals are very annoying

Thank you for checking it out

Cant find anywhere where it says it is Classification GL-4 ?

Well he Castrol Manual Vmx 80w is only available in Australia ! Any other suggestions brand specific ?

The mechanic said he was going to use something with GL-4 per your advise because of brass, on the first page it was suggested to use Castrol Manual Vmx 80w due to the same symptoms I may go this route although it is 80w A manual transmission fluid of advanced design especially developed to provide easier gear changes over a wide temperature range. It is particularly versatile in cold weather as it reduces shift effort at start-up, as well as controlling transmission noise and idle rattle at operating temperatures. Application It should be used in manual transmissions of most car and light commercial vehicles (LCV’s) requiring GL-4 performance, where improved low temperature shift performance is required. Features & Benefits Quieter transmission operation and easier low temperature gear shifting improves driving experience Improved gear tooth and bearing durability reduces the risk of breakdown and extended component life Effective lubrication over a wide temperature range It can be used as a low drag gearbox oil in 2-stroke motorcycles with separate gearboxes Specifications SAE 80W viscosity – SAE 75W-80 extrapolated (equivalent to 10W-30) API Service Classification GL-4

Picked up the Montesa the other day finally had a chance to take some pictures last night

So riding it around last night it is doing exactly what you are saying it is false nuetraling between most of the gears I'll need to find out what he put in the gearbox and maybe change it

This is very exciting in deed! Looks like your bike body extends over the rear fender where mine ends before the grab bar? What year and model is that seat from? That would be awesome for exploring

Very cool photo!

Kinda what I am looking to do, setup some easy sections behind my house, do some exploring and maybe do a vintage trials, my last bike the Sherco I used for exploring, one event, and riding single track What additions would you suggest? On the Sherco I put bar risers for a more upright standing position, and higher gearing

No shocks were straight out of the box and they were the correct length listed No idea what oil is in the forks, and yea I have yet to ride it and see how it feels, and the mechanic is a endure rider, hope to pick up the bike this week and take it for a ride to form my own opinion

Couple of my friends said to use spacers cut from PVC anyone know the size of the springs or what size PVC to get?

Just got a call the bike is finally done! Started on the second kick, picking it up Monday or Tuesday One thing he said with the new rear shocks it is transferring weight to the front end, do you think a heavier oil in the forks would help?

Had a snafu with the throttle cable not fitting the new carb, just got that in today, and ordered the footpegs from the UK

Judging by the frame number it is a 1974 Had to get new tires also, the ones that are on it were new never ridden but the rubber was hard from sitting all these years Hope to have it back from the shop this week and take a couple pictures

Finally picking up the bike tomorrow we had bad weather last week Got the following upgrades to install Sammy Miller Expert Trials Shocks OKO Competition D Slide Carburetor

Hopefully the shop can tell if it was done before

Thank You this will be the oldest Trials bike I have ever owned, it appears to be in great shape and the friend I am buying it from really took care of his bikes, this one was never even rode after the rebuild just stored away

Thanks I cant wait to pick it up, I think I'll just have it resealed to be safe