tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
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Post by tony8834 on May 22, 2019 19:29:43 GMT
Very first start up on my Polini 130 conversion. Notice kick start locks on 1st kick then again just before she springs into life. Any reason for this other than lots of new parts internally probably need mating during running in period (i am hoping)!! |
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tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
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Post by tony8834 on May 22, 2019 19:35:48 GMT
have video but cant upload
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Post by tzsteve on May 22, 2019 20:47:05 GMT
could just be high compression
does it feel the same with the clutch pulled in or is it totally free as it should be
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tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
|
Post by tony8834 on May 24, 2019 16:36:14 GMT
could just be high compression does it feel the same with the clutch pulled in or is it totally free as it should be Yes it seems it is on compression stroke, realised that if I just apply pressure I can hear it hiss as it starts to drop as opposed to putting my whole weight n jumping on it. Its starting and running fine, so just clutch to sort now which is unbelievably stiff on lever and not engaging ...oh what fun. Cheers |
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Post by tzsteve on May 24, 2019 17:37:36 GMT
what clutch are you using?
if you aint got one already you want one of the long lever type clutch covers 50 special type is a straight swap for the V range XL type are nicer but a little more expensive check the sip site or beedies |
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tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
|
Post by tony8834 on May 25, 2019 16:11:19 GMT
Still with the type 1 brass plunger but have fitted 4 plates and re enforced spring. When I fitted into basket it all just felt too tight ?
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Post by tzsteve on May 25, 2019 17:35:15 GMT
i have a similar setup but a long lever clutch cover and thats a big help
but i find that after about 1200 miles the dogs on the clutch plates are battered
so trying to save a few bob for a hartz4 set up
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tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
|
Post by tony8834 on May 27, 2019 19:23:37 GMT
School boy error... stripped it out this weekend and I had put a large woodruff key in there. It had been pushed up and then trapped between the basket and the clutch jamming everything. Luckily it came off with no damage. Sorted now thanks, will stand at the back of the class and be sniggered at for the rest of the day ! 😵
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Post by tzsteve on May 29, 2019 14:30:46 GMT
lucky you found it
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tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
|
Post by tony8834 on May 30, 2019 8:51:10 GMT
Too right mate, 99 times out of 100 it would be in the engine!!
Still having problems with adjustment tho, Clutch slips with only small amount of pre load at the arm yet when h/bar lever pulled not its still enough to disengage and it clunks into gear and stalls.
Hoping it is a cable flex prob, new teflon on order. My only worry is that the kit used came with RMS clutch bell/primary and i have read on here that there has been issues with them :0
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Post by jonnysnatchsniffer on May 30, 2019 15:38:55 GMT
thats pure class fella
the rms primarys are actually quite good, but as you say the basket is a bit poo and will wear quick and groove the turrets where the plates sit
while you rag it, i wouldnt worry too much if you have just bolted on the kit, but if youve tuned it its something to wathch out for.
another thing is when you build the clutch out of the motor, you need to make sure the bottom plate compresses evenly and that the plate
bottoms out fully and evenly and a 1mm separation of the plates occur, if you dont you will end up with drag or slip. or if badly on the piss a bit of a snatchy
clutch
the mallosi spring if yr using it, is to long and wont let the bottom plate bottom out and will need work, but whatever the spring this check needs to be done. you can mark the spring if tilting and linish it to ballance it out or some hard graft on some flat sandpaper
you dont need a montser spring with a 4 plate as the extra plate gives you more friction just make sure you use surflex plates, some surflex plates
are a mixture of cork and other sintered materials so dont swell up as much when hot
or.... you could if afforded get the bgm superduper clutch
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tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
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Post by tony8834 on May 30, 2019 19:58:21 GMT
Cheers for that indepth advice and re assurance on the rms basket. Will whip it back out n check the above.
I have newfren corks and spring the engine is not tuned only bolt on polini 130 large taper ets crank 12v sip vape & 4 speed...going for reliability, economy steady tour set up so clutch should cope.
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Post by tzsteve on May 30, 2019 20:04:27 GMT
i find the surflex to be a little better than the fren
im only getting 16 bhp but the fren do tend to be a bit slippy
which is odd as they do look similar to the surflex
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tony8834
50 Special
many a Vespa problem is caused by the nut that connects the handlebars to the saddle!
Posts: 27
|
Post by tony8834 on Jun 11, 2019 18:21:37 GMT
Stripped it out and disassembled. Found bottom plate and top plate were a very bad fit in the spider so fault is a damaged spider. Not risking just replacing that part, so ordered full clutch already built up. Slotted it in and it worked. NOW I can get on with the electrics!👌
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