is this a restrictor??

[befdelta7]

in my reed cage for the cagiva super city 125cc is something similar to the picture... a 'spacer' which makes the intake smaller in size compared to the accutal size of the cage its sitting in!, what will happen if that is removed? the hole on my reed cage is exactly the size of the rubber intake manifold but when taken out would increase the size. also there is 4 openings either side of the cage where the reed valves open and close but with the 'spacer' in only 3 either side are operational instead of the 4! does anyone think this is a restrictor??
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[cagiva gezzer]

Stop trying to mess up a nice bike.

Leave it, it's a reed block stuffer. It maintains the velocity of the fuel / air mixture as it enters the crankcase.
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"because one stroke isnt enough and four strokes waste two"

[befdelta7]

i cant help myself!
i tinker with everything.

cagiva geezer have you had any problems with your bike, also whats your performance and speed like iv only ridden mine for probably bout 20min max... as im not insured yet !!
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[cagiva gezzer]

0-90mph vid

Only problems from tinkering or utter thrashing.
____________________
"because one stroke isnt enough and four strokes waste two"

[befdelta7]

cagiva geezer is that ur own bike? that thing rev's up like a monster? mine doesnt rev up as fast as that!! how could i get it to go like that? its 1992 with 34mm carb.
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[cagiva gezzer]

It's had a bit of topend work and it's been set up on the dyno. The 34mm bikes should have a bit more power than my 28mm, but it all depends how good condition the engine is and how well it's set up.
____________________
"because one stroke isnt enough and four strokes waste two"

[befdelta7]

iv never owned a geared bike in my life so i cant compare my super city to anything else. your bike sounds and looks fast! hope mine turns out like that. i dont really trust it yet as iv only ridden it for 20 odd mins and its quite high mileage too (26,000km) also the power valve needs to be set-up (the gap) and im unsure about doing it as it took me 6hrs and a severed finger to clean it and that was without the engine being out! i really dont want to take out the engine, its too much hassel with the coolant all the cables and wires. im a competent mechanic wiv a few qualifications but worry when working on my own pride and joy! think ill have to take the engine out tomorrow do it all propper!
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[GSXFire]

cagiva gezzer:
I'm not sure if you have noticed this or not, it might just be the light in the video or a short circuit in the wire or switch, but it looks like the oil light is coming on when you thrash it down the road.
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Fire by name Firefighter by nature.
My old bikes. https://www.bikepics.com/members/firefighter1/

[cagiva gezzer]

cba to fill it up and i've run out of oil.
____________________
"because one stroke isnt enough and four strokes waste two"

[befdelta7]

yer i noticed that to, but didnt say anything as i thought it was just me... although it could be low oil in the tank causing that as when accelerating the bike dips at the back maybe making the light come on then when deaccelerating causing the oil to move back towards the front of the bike causing the light to go off! just a thought.
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[stevo as b4]

Sorry to be negative, but oh dear!
So we want to remove the reedblock stuffer, and run our high specific power output two stroke without a powervalve, and with gaskets made out of cardboard boxes!

Maybe you could/should put down your spanners, and take the engine to someone who knows their 2strokes very well, who will hand you back a very carefully assembled motor, that runs really well and has lots of power, in exchange for a few hundred notes!

[befdelta7]

accually i know quite a bit about 2 strokes i have qualifications in motorcycle repair and maintance and have owned a number of 2 strokes in the 5 years iv been riding... and no not that many coz iv fcuked them up, just like changing my riding style! im just up-dating my know how!
no harm in that is there??
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[Finglonga]

[Jack_Cheese]

You have to get the top end off to set the powervalve gap don't you? If you took the powervalve off, get ready to take a few bits off your engine to set it up properly before it munches your piston rings.

Is it still restricted? The only restrictor is a ring in the exhaust. Once removed, all you need to do is change the main jet. You're supposed to change other jets too, but i didnt on my planet and the spark plug is a very nice healthy looking one.

Jack
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www.bikepics.com/members/jackcheese <--- NOW FOR SALE! 51 Plate Cagiva Planet 125
Quacker_boy: "Jack, you really are a dick!"

[befdelta7]

engine is ready to come out! it just got too dark to carry on. will finish it tomorrow, going to clean the carbon build up on the piston crown, cylinder head and the transfer ports aswell as the exhaust port, adjust the power valve and generally clean the outside of the whole unit. hopefully get a bit more power from it its got 26,000kms on the clock too!! anyone know if the power valve cam shaft casing should ave oil in it? if so what oil should i replace it with if needed?
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[cagiva gezzer]

Supercity manual
____________________
"because one stroke isnt enough and four strokes waste two"

[hazza]

hang on you took the engine out of your bike although all is working fine?
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3 Honda NC50's(Sold)-->'72 Puch Maxi S (Sold, want it back!)--> '90 Yamaha RXS 100 (Stolen)--> '87 Honda Cub 90(Sold) --> '95 Kawasaki Eliminator (Sold) --> '98 Bandit 600 (Sold) -->'07 SV650S (Current)

[Jack_Cheese]

The powervalve mechanism should be lubricated with copper grease, as it needs to withstand the temperature of the exhaust gases.

If you're dropping the engine out, why not do a rebuild considering the mileage? Gives peace of mind to yourself and future owners and saves waiting to do it later. Might aswell do it while it's easy

Jack
____________________
www.bikepics.com/members/jackcheese <--- NOW FOR SALE! 51 Plate Cagiva Planet 125
Quacker_boy: "Jack, you really are a dick!"

[cagiva gezzer]

[befdelta7]

firstly my thanx to cagiva gezzer for the manual NICE ONE!!

a rebuild eh?!! just the top end? or clutch and gear box?
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[befdelta7]

firstly my thanx to cagiva gezzer for the manual NICE ONE!!

a rebuild eh?!! just the top end? or clutch and gear box?
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[Jack_Cheese]

I was thinking just top end, but you may have a point, i'm not sure when it needs a full rebuild including bottom end

I thought copper grease was the lubricant of choice for powervalve mechanisms

Jack
____________________
www.bikepics.com/members/jackcheese <--- NOW FOR SALE! 51 Plate Cagiva Planet 125
Quacker_boy: "Jack, you really are a dick!"

[befdelta7]

what should i use to lubricate the pv mechanics? also what can i use to gap the pv/piston distance as i can find my feeler(prob wrong spelling) gauge? anything similar i could use?
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[befdelta7]

engine is ready to come out! it just got too dark to carry on. will finish it tomorrow, going to clean the carbon build up on the piston crown, cylinder head and the transfer ports aswell as the exhaust port, adjust the power valve and generally clean the outside of the whole unit. hopefully get a bit more power from it its got 26,000kms on the clock too!! anyone know if the power valve cam shaft casing should ave oil in it? if so what oil should i replace it with if needed?
____________________
Dont do a wheelie in front of a traffic copper... it gets you 3pts and £220 fine.

[sickpup]

It's a restrictor but not as you know it. It restricts and in doing so raises intake velocity giving more power.