3 litre?!?!

[P.addy]

Yes.. 3 litre tank

Bought this today from ipswich...picked up in...the car. Not as super as the GSXR in a clio, but a 125 pit in a supra, quite a feat!

https://i53.tinypic.com/2kescj.jpg

https://i55.tinypic.com/6i5m49.jpg

https://i52.tinypic.com/pww7o.jpg

Few quick problems/questions aswell posted both here and workshop just incase someone checks this and not the 'shop

Only seems to run with choke on, when you take it off even trying to hold throttle open it gurgles and dies

Also the chain, im used to bike chains.. but this set up looks a bit different to mine

https://i54.tinypic.com/hvuxl2.jpg

https://i53.tinypic.com/1zvao21.jpg

Im guessing thats way too loose as I can hear/feel it when riding, the back wheel felt very wobbly!

I know binge had one, have pm'd him but if anyone knows anything about these bikes, please share

[deleted111]

Don't know if it's of any relevance, but my CG had the same problem you've mentioned regarding the choke.

Ran with choke, turn it off and it'll gurgle then proceed to die a death until the choke is back on.

Seemed to run fine after I sorted the valve clearances, so might be worth a look. Check the carb also. And I'd definitely say get a new chain.

Steve.

[P.addy]

[blurredman]

When I first had mine, I was thinking I was taking the choke off, but I was putting it on full, then it would die.


____________________
CBT: 12/06/10, Theory: 22/09/10, Module 1: 09/11/10, Module 2: 19/01/11
Past: 1991 Honda CG125BR-J, 1992 (1980) Honda XL125S, 1996 Kawasaki GPZ500S, 1979 MZ TS150.
Current: 1973 MZ ES250/2 - 18k, 1979 Suzuki TS185ER - 10k, 1981 Honda CX500B - 91k, 1987 MZ ETZ250 - 40k, 1989 MZ ETZ251 - 52k.

[G]

We can presume that quality isn't amazing. May not have done many miles, but as it's two years old and probably been a bit neglected, wouldn't be surprised if it's knackered.
The chain should be checked when the swing arm is 'straight', as it will be at the tightest then.
Otherwise, chain looks normal .

I'd start by stripping and cleaning the carb (should be easy) and air filter.
Only running with choke suggests it's too lean, so needs the extra mixture. But I'd start by cleaning stuff

Oh and a bit more 'utilitarian' vehicle, but Korn'd get three people and three pit bikes in his Mondeo .

Should be at Four Marks Thursday/Friday with my 'fiddy' if you want to come play .

[P.addy]

Found the problem re: choke... theres no mixture screw, jammed one from another bike in there and voila ticks over with 0 choke, obviously doesnt stay in the hole.. but atleast the problem is found!

The guy has owned it since 08, first owner, kinda geeky guy like me Said hes only used in summer this year, last year had a football injury and even showed me medical certificates as I asked why he was getting rid. Clutch just went on his car so hes re-mot'ing it with a new clutch hence needs the cash. He seemed a very honest guy and I kinda trust someone on my nerd level

By straight you mean someone sat on it? Ive never had this sort of chain setup where it has some roller and a guard on the swing arm etc.

Re: four marks, im in hospital then mate having radiotherapy

[G]

Most bikes have a guard on the swingarm. A lot of dirt bikes have the roller as the chains generally are run a bit looser and are definitely being bounced about a lot more from the terrain.

[spetom]

Good jobing getting the bike in the car!

[D O G]

Aaaah, the old front seat out trick, I'm sure I've seen that before!

[mysterious_rider]

To tighten the chain, slacken the axle. And in FRONT of the 'adjusters' is a bolt. Turn it anti clockwise and itll push the axle back. Do this on both sides.

[P.addy]

[G]

Set up the chain tension when the swingarm is 'straight' - basically it should be inline with the pivot and the front sprocket. This is the tightest point.

Top bit of chain is often tighter thanks to the engine 'pulling' on that, then there's gravity etc.

When you've got your chain tension set, check for side to side play. If it moves a decent amount side to side, you need to replace the chain.

Check the wheel bearings on the rear wheel by holding the bike and trying to pull on the top of the wheel towards the side of the bike.

[P.addy]