As a newbie at buggies I would like to know how do I understand that the engine is tuned correctly?

Also can I change the fuel tank in my PCR with the violator one?

When the throttle is wide open (we call it WOT), you should see a thin blue stream of smoke from the pipe. You don't see any smoke then your main needle (HSN) is too lean and you need to adjust it slightly counter-clockwise (1 hour at a time). If you see a lot of smoke or if it has the nasty "boggin" sound at WOT, then the HSN is too rich. You adjust this with a 1 hour turn clockwise. Run the buggy some more (needs to be at least 30 seconds for the new setting to take effect).

For the low speed needle (LSN), I adjust mine with my idle times. I put my Idle Set Screw (ISS) so that it has a 1mm gap (works good for most engines). Then I clean out the engine and count how many seconds it will idle for. I run 20% nitro and I let it idle for 20 seconds before it loads up and dies. If it idles too long the LSN is too lean, richen the LSN (counter clockwise) an 1/8th of a turn and try again. If it loads up and dies before 20 seconds has passed it's too rich, so you lean the LSN (clockwise) 1/8th of a turn. Remember to run the car for 30 seconds between adjustments. Also if the carb isn't fully unloaded, it will change your idle times. I usually give it a shot of WOT followed by full brake and then start counting... one one thousand, two one thousand...

This won't give you a perfect tune, but it gets you running pretty good. As time goes on, you will learn different things that will help you tune better.

Also the stock carb on that Hyper engine is pretty hard to tune. Upgrading the carb makes this process much easier.

-RobH

You can make any tank you want fit, but it ai't a straight swop. And your engine is tuned when it doesn't hesitate as you open the throttle right up and you still see smoke coming out. The blue smoke is a good sign.

Thanks for your replies guys.
I need to play with all needle's functions?
Rob what do you mean by saying ''clean out the engine''?
Can you give me a site to buy the OS 20E carb.
Also would it be difficult to set it up on my own?
I will try to tune my engine tomorrow and let you know accordingly.

Doing the carb upgrade is easy. Getting your hands on a #20E sounds like it's pretty difficult in the UK. One of the other guys had called like 40 hobby shops in the UK something. If you have a freind of someone that has an old OS Max .21 RG, the carb is the one you need (20e). That's how I got mine. I lucked out and a guy here had one and sold it to me for $20. I think he still has one laying around but shipping to the UK is prohibative from what I hear.

-RobH

It aint that prohibative if it's a bargain. $15 tops one way for an Item that small.

I just got off the phone with him. He said the two he has are junk and aren't worth anything. I take it the needles are worn out or something.

Here's a few more places for you to try in your quest for the holy carb. Big list.

ABC Modelsport Ltd

82 Nantwich Road, Crewe,
Cheshire, CW2 6AL
Tel: 01270 505048
Fax: 01270 505048
[email protected]

Cheshire Model Supplies

96 Shawheath, Stockport,
Cheshire, SK3 8BP
Tel: 0161 4802804
Fax: 0161 4802804
[email protected]

PL Modelsport

73 Wharton Road, Wharton,
Winsford, Cheshire, CW7 3AD
Tel: 01606 860066
Fax: 01606 862111
[email protected]

Revolution Models

Woodfield House, Woodfield Road,
Altrincham, Cheshire, WA14 4ED
Tel: 0161 929 0129
Fax: 0161 929 5984
[email protected]

Steve Webb Models

80 Church Street, Frodsham,
Cheshire, WA6 6QU
Tel: 01928 735225/252
Fax: 01928 735410
[email protected]

Martin Briggs Models

Bank Crescent, Ledbury,
Herefordshire, NR8 1AA
Tel: 01531 635298
Fax: 01531 635298
[email protected]

Als Hobbies

864 High Road, Finchley,
London, N12 9RH
Tel: 020 84458999
Fax: 020 84455345
[email protected]

Carneys Model Options

Unit 1 Blenhiem Centre, Penge,
London, SE20 8RW
Tel: 020 86760771
Fax: 020 86760771
[email protected]

Centre Hobbies

28 Kendal Street,
London, W2 2AW
Tel: 020 77068333
Fax: 020 77063555
[email protected]

Eltham Models

54 Well Hall Road,
Eltham, London, SE9 6SH
Tel: 020 88504324
Fax: 020 88509212


Hobby Stores

39 Parkway, Camden Town,
London, NW1 7PN
Tel: 020 7485 1818
Fax: 020 7482 0429
[email protected]

MY Hobbies

855, High Road, Leytonstone,
London, E11 1HH
Tel: 020 8539 9009
Fax: 020 8539 9012
[email protected]


Ayr Model Centre

10 Galloway Avenue, Ayr,
Ayrshire, Scotland, KA8 9NT
Tel: 01292 265338
Fax: 01292 265338
[email protected]

Edwards Electronics

23 Princes Street, Perth,
Scotland, PH2 8NG
Tel: 01738 624896
Fax: 01738 624896
[email protected]

GTI Models

39 Baker Street, Aberdeen,
Scotland, AB25 1UR
Tel: 01224 646554
Fax: 01225 646554
[email protected]

Marionville Models

42 Turnhouse Road, Edinburgh,
Scotland, EH12 8LX
Tel: 0131 3177010
Fax: 0131 31767190
[email protected]

Models Unlimited

16 High Street, Inverurie,
Aberdeenshire, AB51 3XQ
Tel: 01467 672277
Fax: 01467 672277


Paisley Model Centre

80-82 Arkleston Road, Paisley,
Strathclyde, PA1 3TS
Tel: 0141 8894221
Fax: 0141 8421322



Soarhigh Model Group

33 Main Street, Tuffiff,
Aberdeenshire, AB53 4AB
Tel: 01888 560446
Fax: 01888 563251
[email protected]

Uddingston Model Centre

161 Main Street, Uddingston,
Glasgow, G71 7BP
Tel: 01698 813194
Fax: 01698 813194
[email protected]

West Coast Model Centre

26 Parkhouse Street, Ayr,
Scotland, KA7 2HH
Tel: 01292 880888
Fax: 01292 880888
[email protected]


Abergavenny Models

1 Brecon Road, Abergavenny,
Monmouthshire, NP7 5UH
Tel: 01873 852566
Fax: 01873 851360
[email protected]

Antics

11 High Street, Cardiff,
South Wales,CF10 1AW
Tel: 02920 229065
Fax: 02920 384812


D W Models

67A Nolton Street, Bridgend,
Mid-Glamorgan, CF31 3AE
Tel: 01656 665435
Fax: 01656 665435



Hobby Corner

112 Chester Road, Garden Village,
Wrexham, Clywd, LL11 2SN
Tel: 01978 355231
Fax: 01978 355231
[email protected]


Risca Model Mart

1 Crescent Road, Risca,
Gwent, NP1 6GJ
Tel: 01633 619697
Fax: 01633 619697