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nh014

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About nh014

  • Rank
    Advanced Member

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  • Website URL
    http://starks@dejazzd.com
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  • Bike
    348 CotaX3 Beta Rev3

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  • Location
    Akron PA USA
  • Gender
    Male

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  1. Bearing Revolution (bearingrevolution.co.uk) lists the 21x35x4 seal. They do not list the 24x35x4 size, but do show a 24x35x6.
  2. See www.mid-atlantictrials.com and click on the "Local and National Trials in 2020" tab. There are number of vintage and modern trials local to Maryland and eastern PA. MAVT trials are both vintage and modern, District 6 trials are set up for modern bikes, although you can enter on a vintage bike.
  3. A decompression valve is used for ease of starting and / or engine braking on downhill runs. In my opinion the 348 does not require any starting assistance, and it is up to you whether or not you desire it for engine braking. In 50+ years of trials riding, I could probably count on one hand the number of times I've seen anyone use one.
  4. nh014

    Monty 348 fuel tap

    In your picture ... C = Closed A = On R = Reserve
  5. nh014

    Monty 348 kickstart

    Correct installation is to be sure the kick start shaft is rotated FULLY clockwise and then install the kick start lever at the one o'clock position. When starting, the lever will engage around 11 o'clock and will safely rotate to the 6 o'clock position. Installed this way you will never punch a hole in the side case.
  6. nh014

    Monty 348

    Original factory recommendation is 200 cc (6-3/4 fl oz) of 10w-30 engine oil in the clutch and 300 cc (10 fl oz) of SAE 90 gear oil in the gear box. I use Maxima MTL-XL 75wt transmission oil in the clutch and any good 80w90 gear oil in the gear box. Never been a fan of ATF for the clutch.
  7. Seal is 38 x 50 x 8/9.5mm. SKF seal kit (KITG -38P) includes the seal and wiper.
  8. In Motion (https://www.inmotiontrials.com/product/handlebar-packing-pieces-cota-348/) offers them. They reduce the size down to 7/8 inch.
  9. Specs call for 370 cc (12.5 oz) in the right leg and 350 cc (11.8) in the left leg.
  10. nh014

    348 gearbox refit

    Here is the adjustment procedure, with credit to Steve Odell. This is easiest to do with the clutch removed. Spin both shafts so that all 5 gears can be selected with a minimum of further turning of the shafts. The shift detent plunger and spring must be in place. Set the eccentric in the middle of its range. Now shift down into 1st and release the shift lever. If you see that the shift drum moves (ever so slightly) as you release the lever, then you need to adjust the eccentric. The plan is to have each downward movement of the lever put the shift drum in exactly the correct position. The shift detent plunger should not "assist" in rotating the drum even slightly, after you let go of the shift lever. Now pull the lever up into second gear. Release the shift lever. Once again, you should not see any further movement of the shift drum after you release the lever. If you do, then you are moving the drum too little, or too much, and that is what the eccentric adjusts for.
  11. Keep in mind that most Japanese motorcycles use Japanese Industrial Standard (JIS) screws. Sometimes referred to Japanese Phillips. Standard Phillips screwdrivers are built with an angle on the flanks and rounded corners. This taper on the driving faces causes the screwdriver bit to "cam out" of the slot before twisting a screw head off. JIS screwdrivers have near parallel faces on the driving flanges and will not cam out. Using a Phillips screwdriver on JIS screws, especially those rusted tight, will typically result in a stripped out screw. Most hardware stores do not stock JIS screwdrivers, but you can find them on eBay.
  12. I've used J-B Weld, a two part epoxy, with good success on a few 348 cases. There is no problem with the design and when installed correctly the kick start lever will travel safely past the foot peg to the straight down position. Correct installation is to be sure the kick start shaft is rotated fully clockwise and then install the kick start lever at the one o'clock position. When starting, the lever will engage around 11 o'clock and will safely rotate to the 6 o'clock position.
  13. Montesa 348 Cota. I've been riding the same 348 for 42 years, in well over 700 meets. Can count on one hand the number of times the bike failed to finish a meet.
  14. nh014

    Montesa 200 timing

    Timing is 2.00 mm (0.079") BTDC with the points set at 0.35 to 0.45 mm (0.14 to 0.18"). There is no Montesa workshop manual. The closest you will find is the Clymer Service and Repair Manual for 1965 to 1975 Montesa 123 - 360cc Singles. They pop up occasionally on E-Bay and will suffice for the 1976 through the early 80 models.
  15. Do a search on any of the motorcycle forums and you will find that Caswell's fuel tank sealer is the most frequently recommended sealer. I have used it on numerous fiberglass tanks with great success. Just follow the instructions on tank cleaning and application. See https://www.caswellplating.com for details.
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