caravan_monster

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About caravan_monster

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Previous Fields

  • Bike
    Montesa Cota 315R
  • Club
    Earls Shilton

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  • Location
    Rugby
  • Gender
    Male
  1. I'd agree that it's a 2000 model, same as mine, with the coloured fork coating and the older style rear caliper. My one has red mudguards and the black carbon fibre effect tank (no Dougie replica stickers though!) I still don't believe anyone will pay over £2k for it
  2. From asking around, it sounds like honda are starting to run down the parts supply for the 315. Fatigue has to be a consideration on a 15 year old bike, but on the plus side, the build quality is good, not much breaks and there seems to be a reasonable supply of second hand parts around. Depends on how you feel about dealing with the second hand parts market. To ride, the power is softer and it feels heavier than more modern offerings, but you still see the occasional one on the hard route. When the time is right, I will be buying the best / newest 4rt I can afford with the intention of holding on to it for a long time. That is only because I'm not keen on using second hand parts. Otherwise, I would stick with the 315 because it is solid, good to ride and I like it. Price wise, some have been asking silly money for 315s that is difficult to justify for a mass produced bike of that age that isn't anything rare or special.
  3. Thanks for the idea Mr.Nou ! Unfortunately, the probe had broken off (it is thinner with a finer thread than the plug cap one), so looks to be beyond repair. Hopefully a replacement and new ht lead will end the reluctant cold starting and intermittent playing up which has been getting annoying.
  4. I set about removing the old ht lead on my 2000 315, with the intention of replacing it. It was difficult to twist off at the coil end. Assuming it had been siliconed in, I gave it a good dose of brute force and it broke. It looks like the lead was glued into the coil. Before I spend many more hours of my life trying to poke the bits out, does anyone know if the lead and coil were a one piece assembly and I'm wasting my time, or is it a conventional reusable item with a screw probe that winds in to the ht lead ?
  5. It could be running a bit lean from an air leak or lean jetting. I find my 315 fan mostly comes on at slow speed in first or second gear.
  6. The parts question has crossed my mind the other day when I realised my 315 is now 15 years old. Not had any problems getting parts yet. As I remember, the engine bearings and seals are standard fare, maybe the linkage had odd sizes. Piston kits look easy enough to find, and once renewed should last a long time. Foot pegs and levers aftermarket. Wheels and plastics 4rt. I think it is correct to say most trials brake systems are shared with various mopeds, so aftermarket should take care of that. It'll be parts uniquely specific to the 315, like the exhaust and kickstart Johnnyboxer mentioned, I could imagine becoming a problem. Those asking prices seem steep ! I thought a 315 would barely fetch a grand. Saying that, even if some nutter offered £2k for my bike, I think I would hold onto it. It's just fine for a crap old man to ride club trials on. I would only seriously consider replacing it with a 4rt, and at the moment it just doesn't seem worth the upgrade cost and effort involved in learning to ride a four stroke.
  7. If fuel (kinked fuel line or blocked jet) and ignition (check spark) are ok, bearing in mind the age of the bike, it's probably worth checking main bearing seals and reeds. More often than not, if the main seals have gone, the bearing will have too. Easiest way to check is remove flywheel cover, firmly hold flywheel and feel for up / down play in the main bearing. To check the reeds, remove the carb and then the reed block from the engine. Check the reeds close properly and aren't broken or frayed.
  8. The pads for the two piston calipers are common to a number of mopeds, so there should be a supply of aftermarket ones around.
  9. Another option for springs is http://dfaulknersprings.com/ He can make one off springs tailored for rider weight, which is handy for unusual sized shocks and forks. http://proracing.co.uk/ rebuilt the shock for my 315 (is it the same one on earlier 4rt's ?), but his area is mx and enduro, so probably couldn't help much with set up. Assuming it hasn't been serviced before, at eight or nine years old, your shock may well be due for some gas and oil. Both were reasonably priced.
  10. Thanks all for the quick replies ! I'm going to get it hot to see if that replicates the problem. I asked a good time served bike mechanic about it, and he reckoned coils were a strong possibility. Are cheaper multimeters generally fit for home / diy use ? I should really have bought one years ago. I can do the fix for the fuel tap with a little bolt, so that a normal person without freak show fingers can operate it. I've only ever turned it off when removing the tank and agree it would be good practice to switch the tap off when not in use. I'll treat it to an inline fuel filter for the PWK carb and a new plug as well. Would an auto electrician likely have an appropriate oscilloscope if I can't pinpoint the problem myself ?
  11. Went up the practice ground at the weekend. Bike starts second or third kick with choke, ticks over and runs fine, as usual. Rode around for an hour or so then came back to the van to get a drink and turned the bike off. Sat around for ten minutes or so then went to start the bike again and it would not start, dead as a a dodo, not a cough or splutter. Lots of kicking, trying with choke on / off, laid it down to check for fuel coming out of the overflow (which it did), no luck, so I packed up and went home. Got home, washed the bike, and it started second or third kick with choke, as per usual. Stopped and started the engine several times no problems. Stops and starts fine today as well. I can only imagine it is either electrical or fuel. Fuel was fresh out the pump, with fully synthetic at 70:1. The wiring loom is tidy with japanese connectors, no obvious damaged wires or connectors and it puts out a strong spark at the plug. Are any of the electrical components known to fail with age and wear ? The bike is a 2000 315R. It does have non standard carbon fibre reeds and a PWK carb which have not caused reliabilty problems to my knowledge. Any thoughts on what to check ? Got to be a dead cert next time it won't start will be in the middle of a trial
  12. I've just fitted a Keihin PWK to my 2000 315R. Here's the jetting specs in case it's useful to anyone: #48 slow #118 main GFH needle clip 1 3.5 slide mixture screw 1 1/2 turns out I should add that this bike has some sort of carbon fibre type reeds that I assume are non standard (I wouldn't be surprised the head had been skimmed and / or some porting done, the motor had that 'look' about it - unusually clean and free of casting marks etc when I did the mains a while back) It does feel as though it would be ok with a #116 main or different needle to lean out the mid to top range a little more, but is fine as it is for my novice abilities. The throttle response is much better than the previous dellorto PHBH. I was struggling with double blips but could do it straight away with the new carb. I purchased the carb as a kit with airbox side reducer, small angled carb top and throttle cable from Allens Peformance It was over £200, but a worthwhile modification in my opinion. The downsides are that it is impossible to get at the tickover screw (could be fixed with one of those bendy adjuster things) and the float bowl overflow barely clears the cases, crushing the pipe.
  13. Good news ! I spoke to Caroline Sandiford earlier. They are in the process of swapping servers and the website should be back on line tonight.
  14. Lots of trick goodies but I'm only after a chain tensioner kit. Sandifords did them at about half the price of buying the parts individually. Haven't had the chance to try Sandifords on the 'phone today. Is it just a web site problem or are they no longer with us ?
  15. Not needed any montesa specific parts for ages, so sorry if I've missed something blindingly obvious, but where are 315r parts available from at the moment in the UK? Sandifords shows up on google, but the link appears to be dead - no website available. I've spent a bit of time searching online and not really found anything concrete.