Forum: The Pit Stop

so my clutch drum has had it and i want to order a new one for my dream bike but i am now curious whats the difference between a 80mm and say a 78mm i think i have a idea of what it is but i have confused my self trying to work it out.. i know its 2 mm before any one makes a smart comment

Hi,my latest project is an old watercooled ZPF from the early 90's rescued from the scrapman.:) It has a 94 polini 40cc 5 port barrell. 316A marked. When putting the engine back together i looked for the woodruff key slot for the flywheel and noticed that there wasn't one!! The crank is in...

Guys, was over at Hullavington the other weekend and saw a couple of guys working on their bikes on stands which were at waist height (or a little taller) - ie not having to work on the floor like me! Did ask someone where they got theirs from, but he said from a mate - which doesn't help me much!...

hi all, i cant remember it :eeek: any ideas roughly? toby

Would a GP3 Polini damper fit a GP4 reverse? Thanks

hi there does anyone have the manual for this bike or a wiring diagram. these both would be great as i need allot of help as i only got the bike this weekend. for somereason the spark plug doesn't spark i have tried new ones and they don't spark eithier ?? please help asap cheers

just brought a blata elite, she wont run i've stripped it put new gaskets all over and new piston ring, feels like theres plenty of compression but just wont fire up, i've checked spark plug and that is firing, any ideas would be greatly recieved, many thanks simon

Just bought these off Ebay. The guy said they came off a Blata mototard and were the tyres fitted as standard to them. They are genuine PMT - but I'm just wondering if anybody knows roughly what sort of compound they are, ie T41 or B's etc etc? Cheers Tony:) ...

Just wondering if theres a way of doing? Or is it just a tyre lever case? Cheers

Hi all, I have what i believe is a Dellorto 14/14 rep. I was given this in bits and think i have it all in the right places (going by the exploded diarams). Having trouble getting it to run though. Will start but dies after a second or two. (Not sure how to get the choke to work either, just...

hi all, so i recently purchased a mini dirt bike (KXD 50) and it seems to do the job well enough. however i developed a problen with it. the back wheel doesnt spin freely sometimes ie if i push the pike while off it it will roll but sometimes will lock up but then free itself lock up and...

i recently got a mini dirt bike honda qr50. it didn't come with a ht lead and the bike had been sitting around for a year. i bought one and there was not spark and it didn't fire. please help ! thanks

hi there guys i have recently got a mini dirt bike and it didn't have a pull start so i bought one. when i start the bike it is on full throttle constantly and i haven't touched the throttle. please reply with help ASAP cheers

hi all, what jetting do you reccomend for a sha 14/14 carb on a standard CAG engine in a mini dirt? cheers

hi guys, just bought a mini moto from a mate to fix up and play around with, now it starts and worked ok,but needed new wheels etc,but i have fitted new wheels front and rear but when its started and ticking over it fines but if i give it a bit of throttle while it still on its stand the...

Hey, I was riding my mini dirt bike today when it just suddenly cut out and wouldn't start again. I have a full tank of fuel and have checked all the pipes and there is nothing wrong. Even when I pull the pullstart, it still won't start. Any ideas on how to get it working again? ...

anyone know if these are any good? http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=140440450853&ssPageName=STRK:MEWAX:IT thanks

Hi all, I have a little project going from two donations ive had. Im trying to make one runner from two scrappers. might not sound too hard for most people.... but i've never built bikes before so this should be fun. So far ive almost made one good engine from five broken one. Well, lets not...

Hi,i have a 04 polini 40cc 5 port barrel and the head that came with it has a short reach plug. It is warped so is there any difference or reason that i can't use a head with a long reach plug which i have got? Also what is the plastic O ring for as i don't have one in the 5 port but in the 3...

hi all, will this tank fit my bms? iv been told that you need a new tank if you want an alloy cap... http://www.minimoto-racing.co.uk/online/product/increased_fuel_tank_w_alloy_cap/ thanks

Whats the symptons of reeds not working properly

Bought some new bzm clutch shoes, they dont fit in the casing, are there different siZes or something? The old shoes where bzm? Tried sanding a bit off, but they still wudnt go in? Any help or advice appreciated. C_H

what jet do people reccomend to use all round on a standard b1 rep? toby

I have an old cag i got given. Most is crap i think but im gonna kee the wheels just in case they come in handy. My question is what paint to use on them or any tips for painting or prepping? They need a good clean and have been brush painted in the past. Cheers, Muddy

Hi everyone - I've got a problem with my 40cc 5 port engine. When I first start it it runs fine then about 2 or 3 laps around the track (when it gets hot?) it starts to hunt as though it's either running out of fuel or running REALLY lean. I assume there is an air leak somewhere but all looks...