|
Post by gummybody on Feb 17, 2023 13:01:03 GMT
Hi, I'm looking for an engine case ( or fly side case ) for a 2 port 1966 Super. Based in West Yorks.
|
|
|
Post by gummybody on Jan 19, 2022 15:04:42 GMT
Hi Adrian, I'm in West Yorks near Cleckheaton. It's not long since the cases were opened. I had a Vespatronic kit fitted which needed new crank so seals were changed, Cruciform etc were checked then ( not by me), only done about 300 miles since then.
|
|
|
Post by gummybody on Jan 18, 2022 16:20:03 GMT
Another update, I think I have found the problem. I took off the carb and carb box and shone a torch down the air / fuel intake. I could see that there had been a previous fix to the casings with something like JB weld and it has deteriorated and left what appears to be holes in the casing. Can't see too clearly without splitting the cases ( which I'm not sure I am up to ). So, that looks like it could be the cause of the over-revving that was the initial fault and why I'm not getting fuel drawn into the engine through the carb. So, do I try a JB weld type fix or split the cases to see exactly what we have got and see if someone can weld the case? I don't really want to change the cases even if I could get them. As usual, your thoughts are welcome.
|
|
|
Post by gummybody on Dec 7, 2021 16:48:25 GMT
Update on this one, put everything back. Not too hard a job lining rings up with pegs and sliding barrel back on. Torqued Cylinder head back on and tried starting it...... no change, wouldn't start. Dropped a bit of 2 stroke down plug hole and re-tried. Started straight up for a few secs, so same problem. ( alan34 )This is with exhaust off. ( gpowell ) might have to look again at fuel supply. Trying to get it started again and ignoring the original problem of the overrevving ( engine screaming ) for now.
|
|
|
Post by gummybody on Nov 30, 2021 12:06:11 GMT
Hi Gents, I have now got the bits required to re-fit the barrel \ Cylinder head. alan34 - Exhaust is off at the moment so I'll try it first before attaching exhaust, gpowell - I did try with a separate fuel supply but due to fuel coming through with throttle wide open I have discounted fuel starvation ( for the time being ). Now I have to find the "pegs" on the piston that the ends of the rings line up with. They are not obvious ( at least to my eyes ). Do all pistons have these? Mine is a Pinasco 177 2 port.
|
|
|
Post by gummybody on Nov 26, 2021 9:19:37 GMT
Hi Ebormatt, I have something similar and I was given some advice on here. Open throttle fully when kicking over, with air filter off you should see fuel getting into the air intake from carb. Might not start but "should" be able to prove fuel getting that far.
|
|
|
Post by gummybody on Nov 20, 2021 19:17:34 GMT
Hi Gents, I checked a few sites online etc and decided to remove the studs / exhaust then the Cylinder barrel. This went fine and Piston/rings/barrel all look ok. The gasket is the thin aluminium type, can't see anything obvious so I'll get a replacement gasket, some M7 nuts/washers/ spring washers and put it back together. I will lapp the Cylinder head first. Any advice please? Do you use gasket sealant and if so, on which surface?
|
|
|
Post by gummybody on Nov 15, 2021 12:29:01 GMT
Hi Gents, so took a while but had the Cylinder head off and there was like an oily residue on it which indicated a leak. Cleaned it up and it looks like new, piston and top ring look ok and no carbon build up on top of Cylinder head, barrel looks good too. So then re-torqued the head back on and with expectations high, gave it a few kicks. Back to earth with a bump as - no change. I used the open throttle trick and then put an eggcup full of fuel directly into the intake and it did start for a few seconds as usual. During this brief startup, I noticed smoke coming from around the bottom of the Cylinder head then found fuel dripping out lower down the barrel. Difficult to see exactly where but I think next step will be to take the Cylinder off and check \ change the gasket. So a bit disappointed but not done yet. I have had a quick look online at Cylinder removal, some say drop engine, other don't. I will have a read up but as usual any comments are gratefully received as it's not something I have done before. Either way, I will keep you updated.
|
|
|
Post by gummybody on Oct 27, 2021 15:59:19 GMT
Hi - alan34 . I tried kicking over with the throttle open and yep, I could see fuel coming through. No suction when thumb over air intake though. Interesting thing is, next morning I could see 2 stroke fuel underneath the engine. It was in a strange / new place, roughly under the cylinder head rather than the usual place at the back of the carb. So, at least something to go on here. I'll take the head off and have a look there. I previously checked the cylinder head nuts and they seemed ok but haven't got a torque wrench. What's the thinking? Do most of you use a torque wrench or just tighten up the nuts in correct order? I'll let you know how I get on.
|
|
|
Post by gummybody on Oct 23, 2021 11:18:49 GMT
I tried kicking it over with throttle wide open and couldn't see fuel getting sucked into the rotary valve. Plug wasn't particularly white after the over revving episode? this week connected new fuel supply ( with fresh fuel )but no change, cylinder head nuts ok, compression seems ok. Spark fine. I suspect an air leak but will probably have to get someone to take a look at it. I have run out of ideas.
|
|
|
Post by gummybody on Oct 1, 2021 14:22:08 GMT
So this week changed Start Jet , Float , needle , housing etc for known good ones. Checked hole under Start Jet not blocked, new plug, good spark, finger over spark plug hole ( didn't suck but blew hard enough ) I can't 100% say the plug was wet ( smelled slightly of petrol ) but wouldn't start so no change. Dropped a bit of 2 stroke down air intake and started and ran a few seconds. Is there a way of checking fuel getting through carb to plug?
|
|
|
Post by gummybody on Sept 23, 2021 12:26:23 GMT
Update on this, float checked ok. no petrol in gearbox oil. Removed carb and when sat on a mirror it rocked ( strangely from side to side rather that lengthways ) so, got it flattened out and fitted it with new gasket but no change. Won't start unless carb cleaner fired directly into carb with air filter removed. Any ideas gents?
|
|
|
Post by gummybody on Sept 3, 2021 13:47:20 GMT
Hi Gents, I'm in need of a pointer please. Was out last week on my Super when it suddenly started over revving, kill switch wouldn't stop it, pulled plug ( and turned fuel off ) and it still ran for around 5 seconds then stopped. Got it going again, albeit a bit lumpy and it cut out if I had to stop at lights but managed to get home. Thought maybe air leak but found throttle cable worn ( both inner and outer ) replaced inner and now can't get it started unless I put fuel straight into carb ( air filter off obviously ) it will then start and run for a few seconds then die again. I've had all 3 jets out and blown them, cleaned fuel and air filter ( they looked ok ) then fired air into small hole at top of float chamber and fuel came out of the small brass pipe and it started for a few seconds again. Looks to me like fuel starvation but might I still have an air leak? Have not taken carb off fully yet or checked gear oil for petrol but I have been changing idle screw \ throttle adjust. Don't like changing too many things blindly. Any other ideas please?
|
|
|
Post by gummybody on Sept 30, 2020 17:00:45 GMT
Hi Alanc, well mine ran for a while on the Bajaj then rear wheel locked up while riding near home. Turned out the screws in the stator were too long and they cauught on the coils and properly broke it. I have just bought a Vespatronic kit and have removed the old CDI and wiring. Did you wire yours up because I was wondering if I use same connections to the new regulator? Also it used to have a bundle of wiring to the old CDI and Coil combo but now it looks like I just have red to pos 1 on CDI, Blue to pos 2 on CDI and Yellow to regulator with White \ Red unused. Is this correct?
|
|
|
Post by gummybody on Apr 11, 2020 9:48:08 GMT
Hi Gents, final update on this problem ( hopefully). I didn't do much on it since the last update but couldn't get the lights working and it would sometimes start and sometimes not, eventually it wouldn't start at all but still had a spark. I ordered a new Stator\ CDI and Ignition coil to try and bottom out the problem. New stator came and didn't fit so had to drill new holes then it didn't fit as it was slightly different size to original one. Removed coils \ pickup etc from old stator, kept the plate and replaced with coils\pickup from new stator. Different connectors and colored wires but changed \ sorted these and fitted it and checked the spark. This looked much brighter than previous spark and started up fine with lights\ horn\ cutoff switch all working fine. So what started with a breakdown due to broken wire on CDI resulted in me, wrecking the stator. Still it gave me something to do ( left it from about Nov - March due to weather)and I learnt how not to take a Bajaj flywheel off then probably had the flywheel on \ off a couple of dozen times or more since. Now it's running I can't go anywhere but fingers crossed we can all get out on them before summer is over. Keep safe and thanks again for the advice along the way, hope this may help someone in future.
|
|
|
Post by gummybody on Dec 20, 2019 21:15:26 GMT
Gents, went to IOW last August for first time, absolute blast, three of us from Yorkshire, old guys with old Scoots. I know this is not what everyone agrees with but we put the scoots in a van and rode across from Southampton, camped on the official site, watched the bands, did the rideout, drank and laughed for 4 days, met some amazing people and tbh it couldn't have been any better. So we are thinking this year, maybe try Brighton on Aug B/H because we can't top last year. We like all types of scoots, will mix with anyone on two wheels and do like a bit of good music. Any thoughts?
|
|
|
Post by gummybody on Nov 11, 2019 12:06:05 GMT
Gents, another update and it's good news I have got it running. All looked ok behind the flywheel but the spark didn't look quite right. Took off the HT lead and trimmed 1cm off the DCI end and re-terminated. Started first kick and ran ok. Big smile on face but it's not finished yet. Lights and cut off switch do not work so looks like the two new coils I fitted are duff / not connected correctly so flywheel will have to come off and I'll have another look. Toying with idea of new Vespatronic ignition kit but at least I can ride it to the garage if required. Lots of lessons learned here by me as I have caused most of my problems by not using correct tools ( ie -screwdriver in Stator ) Thanks for all the tips and ideas, it really does help when you are learning.
|
|
|
Post by gummybody on Nov 5, 2019 8:51:56 GMT
Hi Gents, fuel ok and it's a flywheel holder I need, I've got one that's ok for the GL but can't use it on this bajaj stator as it's got plastic fins on the flywheel cover. The puller is a different size to a stock PX puller too, had to get that from India.
|
|
|
Post by gummybody on Nov 4, 2019 10:19:56 GMT
Hi mijapxman, thanks- great video. So lapped the flywheel/ crankshaft and inserted new woodruff key. Torqued flywheel back on to 45lbs \ ft. Kicked it over twice and it started up but died after 20 secs, had a couple more goes and did get it going again for around 30 secs but it died again. So looks timing related and thanks for all suggestions so far. Can't get flywheel off again yet as I have no flywheel holder and don't want to jam a screwdriver in like last time. I'll have to make one and have a think, will update later.
|
|
|
Post by gummybody on Oct 28, 2019 21:11:44 GMT
Hi mijapxman, checked again and Woodruff had sheared again, modern vespa advised that flywheel nut needs to be tightened to 45lbs \ ft so I have ordered a torque wrench. Have got a tin of grinding paste as you advised ( Coarse & fine ) so presume I use coarse first then finish with fine. Any tips for this procedure? Do I use on Crank and Flywheel and how much \ how long? Have read to rub in figure of eight but can't see that working on crankshaft?
|
|
|
Post by gummybody on Oct 22, 2019 8:34:48 GMT
Hi mijapxman, thanks I will check the Woodruff key again and get some grinding paste. Posted on the modern vespa forum as you suggested. Will keep you updated thanks.
|
|
|
Post by gummybody on Oct 19, 2019 16:40:12 GMT
Update on this one, fitted new Woodruff key and still not starting ( Still getting a spark ) New pair of lighting coils arrived so changed these on the stator - still not starting ( still getting a spark ). Scratching head now, I can't fathom the timing on this. I have not moved the stator at all ) in fact it will only fit in one position, there are no slots to move it either way ( advance or retard) The casing has two marks on it and the flywheel has a mark also but they don't line up and I can only fit the flywheel where the woodruff key lines up with the slot in the flywheel. Am not using a special tool to tighten nut securing flywheel but it seems to tighten up ok. Still can't help feeling this is something simple.
|
|
|
Post by gummybody on Oct 15, 2019 19:04:07 GMT
Mij - Yep It was running sweet, I do have an update, I removed the flywheel again and found the Woodruff key had snapped and left a bit in the flywheel and the rest in the crankshaft. I have removed the broken bits and have ordered a new Woodruff key, should be here in the next couple of days. Will fit it and let you know.
|
|
|
Post by gummybody on Oct 11, 2019 13:52:07 GMT
Hi scooterg - compression's good.
|
|
|
Post by gummybody on Oct 10, 2019 14:07:44 GMT
Just an update, ordered a replacement coil which will be a couple of weeks( India )but think it is a lighting coil and won't affect ignition.Have measured leads from stator and they look roughly ok on meter . Was thinking about the flywheel which has 28 degrees imprinted on it. It seems like the flywheel will fit on the crankshaft at any angle so I'm thinking how does it affect the timing? Now suspect woodruff key may be worn or missing. Will check that next and give update, any ideas welcome.
|
|
|
Post by gummybody on Sept 29, 2019 18:47:48 GMT
Tried new plugs , HT lead caps etc, cleaned carb, blew jets. When fault originally happened ( 3 weeks ago )I tried to take flywheel off to get to stator. Firstly, the flywheel holder I have didn't work on this bike as it has a plastic flywheel cover so I had to wedge a screwdriver in to hold flywheel while I loosened the nut. Got the nut off but then my flywheel removal tool wouldn't fit as it was too wide. Ordered a bajaj flywheel removal tool and it came this weekend so I was able to get the flywheel off. Then found that I had damaged one of the coils with the screwdriver previously. This was before I found the broken wire on the CDI. So, unravelled the coil and it was " damaged" but not severed. Applied a bit of solder and re-wound the coil ( not perfectly as coil insulator had broken ) re-connected and had spark again but wouldn't start. So looks like maybee I have fixed original fault and introduced a new one. How can I prove coil or spark? Suspect I may need to solder a new coil onto stator or get a new stator.
|
|
|
Post by gummybody on Sept 26, 2019 15:49:02 GMT
Hi ianmartin40, firstly apologies as I thought I had responded to your question so here goes. The plug was getting wet so i turned off the fuel tap, removed plug and kicked over 30+ times till no fuel coming out of "plug hole" then replaced plug , turned fuel back on and re-tried, no change. Repeated this and removed air filter, sprayed carb cleaner directly into carb and tried again with no change. Measured across Violet & Eth on CDI and this time can see between 23 to 30v ac which although a bit low I can see a good spark. I am reluctant to start looking at stator / CDI/ Coil as don't want to introduce other faults as this started with no spark and I have fixed that. Scratching head a bit now though?
|
|
|
Post by gummybody on Sept 21, 2019 16:42:32 GMT
Hi
I have a 1966 Vespa 150 Super and it has been running sweet, coming home from a ride last week I stopped for 1/2 hour. Tried to start the bike but no spark and couldn't get going. Got the bike home and found the Grey wire on the Bajaj CDI had broken off the spade connector. The black connector had also come off the CDI but this could have been when I removed the rubber cover. Re-crimped the grey wire and re-connected to CDI and re-connected the black to the CDI too. Thought that had sorted it but although now I have a healthy spark ( and fuel ) it just won't start. Tried also with the black spade disconnected from CDI but no joy. Can't seem to get a decent AC reading from HT lead but as spark looks good I'm suspecting that's my meter?Thought it was a simple fix but before I order spare CDI / Coil have I missed anything obvious.
|
|
|
Post by gummybody on May 1, 2018 15:57:39 GMT
Hopefully the last update on this. I have had a few rides and it is running like new. Big thanks to Henri for pointing toward an Electrical rather than fuel based problem. I will try the suggested change to the Mainjet later.
|
|
|
Post by gummybody on Apr 24, 2018 19:22:20 GMT
Ok so a couple of short rides where it was not quite right but rideable until Iit came back again last week. Couldn’t go 100 yards without cutting out. Flywheel off again and torch / magnifying glass and all looked ok. Bearing in mind Henry’s earlier comments Making me think electrical rather than fuel problem, I nipped the spade connectors with pliers and reconnected to CDI. Started it up and it ran like new. Still need a couple more rides when rain stops but fingers crossed, will update later.
|
|