Liquidpopraver Posted April 28, 2019 Report Share Posted April 28, 2019 (edited) I was given a Montesa Enduro 250 and now I’m trying to find a service manual for it. So far I’m coming up empty. Any help with anything would be much appreciated. I also looking for things to avoid or tips in general about this bike. Also I’m curious about the numbers stamped on the frame if anyone’s well versed in them. Edited April 28, 2019 by Liquidpopraver Quote Link to comment Share on other sites More sharing options...
lineaway Posted April 29, 2019 Report Share Posted April 29, 2019 So what year is it? A King Scorpian. Quote Link to comment Share on other sites More sharing options...
Liquidpopraver Posted April 29, 2019 Author Report Share Posted April 29, 2019 No clue to be honest. Based on photos I’ve seen i think its a ‘76. The stamping on the frame is 54m1074. I got nothing other than the bike so i’m Kind of out in no mans land. I’ll snap some photos of it tomorrow. I took the seat and take off it already but I’ll place them on there. Quote Link to comment Share on other sites More sharing options...
feetupfun Posted April 29, 2019 Report Share Posted April 29, 2019 http://www.southwestmontesa.com/production.html This list says 250 Enduro and the first 3853 of them were made in 1974 so your number looks like 1974 Quote Link to comment Share on other sites More sharing options...
Liquidpopraver Posted April 29, 2019 Author Report Share Posted April 29, 2019 I’m going to contact southwest Montesa today for a manual. Here’s some of the pics of it Quote Link to comment Share on other sites More sharing options...
Liquidpopraver Posted April 30, 2019 Author Report Share Posted April 30, 2019 (edited) Anyone know what fuel ratio these ran on? I contacted southwest Montesa about a manual but have heard anything back yet. UPDATE: Southwest Montesa doesn’t have a manual for this bike. So it looks like I’m back to square one Edited April 30, 2019 by Liquidpopraver Update Quote Link to comment Share on other sites More sharing options...
Liquidpopraver Posted May 1, 2019 Author Report Share Posted May 1, 2019 After some playing around yesterday I think I’m having a spark issue. I removed the kickstart cover and was able to turn the motor over by a drill. I was doing this to test spark. I’m not seeing any spark at all. Does the switch panel on the left side of the handlebar have anything to do with this? The wiring on this bike is pretty basic but I’d love to have a wiring diagram! Quote Link to comment Share on other sites More sharing options...
riffraffretro Posted May 2, 2019 Report Share Posted May 2, 2019 (edited) I have a Clymer Publications 'Montesa Service • Repair • Handbook 123-360cc Singles • 1965-1972' manual which states that it covers an array of models from Cota, through Impala, to Scorpion (King Scorpion) and Cappra. Not sure if this would be applicable to your bike, but the engineering and technical fundamentals are all pretty common between variants; it's out of print and has been for years, but copies do surface from time to time. Might be worth searching online? In terms of a weak/absent spark, this issue is common and well documented here on TC; it's usually down to a faulty condenser, sticky points, incorrectly adjusted timing, stator degradation, poor earthing, or a combination of all of the above. I quit in the end ('71 Cota 247) and installed electronic ignition from Electrex World - solved the issue in an instant, which combined with a decompression valve (Venhill), makes starting easy. The fuel oil ratio I run with is 50:1 (synthetic pre-mix), which does create moderate smoke but ensures a well lubricated piston and barrel... again, for the Cota 247. Your enduro, if ridden hard, with regular wide-open throttle might need a different mix... regular riding/plug inspection should provide guidance. Edited May 2, 2019 by riffraffretro Quote Link to comment Share on other sites More sharing options...
Liquidpopraver Posted May 2, 2019 Author Report Share Posted May 2, 2019 That’s all great info. I’ve recently ordered a book by Clymer. I don’t think it’s the same as the one you mentioned but I’ll search for it all the same. Thanks for the info Quote Link to comment Share on other sites More sharing options...
riffraffretro Posted May 3, 2019 Report Share Posted May 3, 2019 (edited) No problem. There was a copy of the manual in question, listed with UK eBay (Google Search: Clymer Montesa Manual), with a seller called Red Brain, but the link doesn't seem to load... maybe it's sold/is an old listing. Might be worth contacting the seller... the manual is excellent. Edited May 3, 2019 by riffraffretro Quote Link to comment Share on other sites More sharing options...
Liquidpopraver Posted May 10, 2019 Author Report Share Posted May 10, 2019 Well I’m faced with a dilemma, should I fix the bike or part it out. It’ll cost $400 for new ignition components. I’m only getting 120 psi engine compression with the kick starter. Is this worth putting the money into? If I spent a grand on it to get it going is there any chance of me getting the money back if I decide to sell it? Quote Link to comment Share on other sites More sharing options...
riffraffretro Posted May 13, 2019 Report Share Posted May 13, 2019 I guess only you know the answer to that question; spending out on classic kit hardly ever pays dividends (financial), but there's often huge satisfaction to be had bringing an old/tired example back from the brink and enjoying the process along the way. Plus of course, you get to own and ride something that's a little less mainstream than opting for a newer model. Quote Link to comment Share on other sites More sharing options...
Liquidpopraver Posted May 14, 2019 Author Report Share Posted May 14, 2019 Thanks Riff for the encouraging words. In my time of reflection on what to do I actually found an original manual for dirt cheap. Hopefully once i get that and the Chilton book I can diagnose the electrical better without just buying all new stuff. However, if its all bad I still think I’ll resurrect it. Now its just a waiting game for the service book and owners manual. Quote Link to comment Share on other sites More sharing options...
riffraffretro Posted May 14, 2019 Report Share Posted May 14, 2019 I went through exactly the same issue with my Cota - several new and relocated condensers, points (endlessly adjusted), HT leads and caps, timing set-up - then set-up again, replacement kill switch, thorough wiring overhaul, stator check, carburettor rebuild... all to no avail and producing a barely visible spark! During the depths of despair (this process took me 12+ months, on and off), I too, considered selling-on as a 'spares or repair' project - I even came close to buying a fully sorted Bultaco Sherpa, but something inside... along with much encouragement from several TC members, saw me stick with the plan. Suffice to say, an electronic ignition conversion later, along with bottom end rebuild and top-end checks (so easy and rewarding to do - save for removing the primary drive gear from the crankshaft end - aided by the loan of a puller from another TC member), plus a coating of Caswells Tank Sealer, saw her fire-up first time. She's a beauty... raw, unpolished and involving - quite unlike any other bike I've ridden... sure some of the engineering fundamentals are iffy (Spanish 70's engineering), but the handling and performance are remarkably good - plus, there's an ownership experience associated with a bike made almost 50 years ago, which nothing else I've owned can match... I love my 2018 4-Ride, but I love my Cota equally. If you have the desire to see it through, I doubt you'll regret the decision. Keep us posted and good luck - you WILL get there and who knows, you might just enjoy the challenge... I did. 1 Quote Link to comment Share on other sites More sharing options...
Quinten Posted March 29, 2022 Report Share Posted March 29, 2022 On 5/11/2019 at 1:43 AM, Liquidpopraver said: Well I’m faced with a dilemma, should I fix the bike or part it out. It’ll cost $400 for new ignition components. I’m only getting 120 psi engine compression with the kick starter. Is this worth putting the money into? If I spent a grand on it to get it going is there any chance of me getting the money back if I decide to sell it? Yo man what did you do with the bike cuz if you still have it can you tell me what kinda kickstart I could use instead of the original Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.