Sister shop to Motorhome Facts TomTom GO LIVE Camper & Caravan
TomTom GO LIVE Camper & Caravan

The ultimate Sat Nav system for your motorhome, pre-programmed with 20,000+ POI's from the largest European Motorhoming Websites including the Motorhome Facts Campsite Database for only 299!

Motorhome Insurance

motorhome insurance quote online
Phone on 0208 9845311

Motorhome Chat Rooms

Motorhome Chat

11 Chat Rooms
12 Members connected
6 members chatting

Chat Now

Campsite Reviews

Newgale Camping Site Review Photo

Review of:
Newgale Camping Site


UK Campsite UK

Full Details

Motorhome Garage

2005 Hymer B584
2005 Hymer B584 motorhome
Owned by Baron1
Updated 03/04/2012

2010 Autocruise Accent
2010 Autocruise Accent motorhome
Owned by p1nkie
Updated 06/01/2010

2007 CI Carioca 656
2007 CI Carioca 656 motorhome
Owned by colpot
Updated 01/04/2013

Motorhome Travel Blogs

Latest Classified Ads

Motorhome Ads

Clarke G900 generator

Below is an independant and unbiased review of a Clarke G900 generator

The Clarke G900 suitcase type generator is "So portable, So quiet, So useful! You can take this lightweight "suitcase" generator virtually anywhere to run lighting, TV, video and computers plus many power tools and small appliances including domestic heating systems. Especially suitable for camping, caravanning and boating as well as outdoor markets and fairs."

So say Machine Mart, purveyors of this magnificent generator, which can be seen and heard powering ghetto-blasters at a zillion hot dog stands up and down the country. My G900 is about five years old now, and was bought for driving power sanders in 2000, when I had the misfortune to buy a thirty year old sailboat. The generator outlasted the sailboat.

Before we launch into the review, let's ponder for a moment on the fact that boats are different animals to motohomes. With a boat, if you flatten the main engine battery overnight, you don't get to start the engine in the morning. And, unlike a motorhome, you can't point a boat downhill to get it going. So a genny is pretty handy to have aboard a boat, perhaps less so aboard a motorhome, where you can carry a pair of humble jump leads and petition passers-by for a quick start.

First then - the upsides. This small genny 'only' weighs 22 kilos, which is about as much as I'd want to carry, say five metres. Any more than that and you need either a trolley, or a companion whose leisure activities include swinging from the trees and eating bananas. Secondly, it puts out 700 watts, which is enough to drive most small power tools. Thirdly, it starts second pull, even if left untended for six years. And fourthly, it's painted in a cheerful shade of cherry red.

The G900 arrives by courier, and unpacking it, you, a generator virgin, suddenly need a litre bottle of engine oil because your beautiful G900 doesn't come with any in it. Stickers on the case warn you of dire consequences if you run the engine in oil-free mode before starting it up. I filled mine with Asda 'Car Club' 15W40 oil at five quid for forty-five gallons and then left it for six years. Read on for the result.

Noise? Yes, thank you. Quiet the G900 is not. A rating of 58dB at seven metres might be tempting, but you'd have to carry the generator seven metres away to be able to hear yourself even think about peeling bananas Stand closer and the racket it makes will give you double vision within the hour. And the noise increases with increasing electrical load. I dug my G900 out of storage last week, changed the oil, put it in the yard outside the back door, fired it up, and plugged a 500 watt halogen light into it. I lasted fifteen minutes before turning it off.

The engine, if a review I found is to believed, is an ancient design sidevalve engine, as used in a hundred similar cheap gennys, so some noise is expected. But fire a G900 up on a busy French campsite and you'll have a shotgun poking through your window before you've even let go the rewind starter.

On a more positive note, it's good for power tools like small sanders and drills, it runs for about two and a half hours on a top up - if you don't plug much heavy equipment into it, and there's a token 12V 8 amp output which will eventually cram a reasonable charge into a flat car or leisure battery, over say, a couple of hours. There are two continental type socket receptacles with covers on the case, which I personally prefer to the UK 'square pin' sockets even though you have to make up an adaptor with the plugs supplied.

There's a dinky little fuel gauge too, and circuit breakers for the 12v and 240Vac outputs. And there's a low oil warning light, which we hope and pray has enough intelligence to stop the engine if the engine oil disappears. Don't try this out at home.

The quality of the electricity produced seems a little rough - halogen bulbs shimmer with the sort of effect you get from spending too much time in an Amsterdam coffee shop, but this doesn't seem to worry my laptop computer, but some caravanners have found that the impure 240v output wouldn't work with their battery chargers.

For RV owners, or campers, the only real use of this genny might be to ensure you empty a camping spot within minutes. For wild campers and long termers it could prove useful for topping up batteries from the 12vdc outlet. You might be better off buying a decent 240v charger and plugging that into the generator's 240v socket, than limping along on the meagre 8 amp 12v outlet. And then you've got to find a charger that will actually work with the generator. Suddenly, solar power looks interesting, but not if you live in Britain.

While, this crude, noisy, heavy generator has its downsides, it's actually ok at doing what its supposed to - generating 700 watts of 240 volt power. The fact that it does so with such vocal protests may make seekers of solace hunt elsewhere. But as a portable if heavy generator, it's just about ok for basic stuff, like running power tools. And should you be stuck in a muddy field, you can use it as an anchor from which to winch yourself out

The current price of the G900 seems a bit steep at 282.00. B&Q and my local hardware store were selling two stroke 600 watt generators last winter (2005) for sixty-nine quid. Now I know two stroke engines are smelly and er, noisy, but the price difference means you could spend the 210.00 saving on a long mains cable and several pairs of ear-plugs, and still have enough beer money left over to placate your neighbours.

Still, if you must have a Machine Mart G900 because of the cheerful red paint, slightly used ones go for 80.00 on Fleabay.
Just make sure you don't have to carry it more than five metres on the way home. And get a Residual Current Breaker (RCB) for the 240 volt output in case the generator tries to electrocute you.

With a G900 nobody can hear you scream.


Handy tips for G900 users? If you store the genny unsused for any time, run the tank dry before you turn it off. This stops fuel evaporating in the carburetor and gumming the bugger up. It will start second pull next time, and you'll be grateful. And change the oil and the spark plug at the 20 hour first service interval without fail. Change the oil too, if you put the genny away for the winter. Then change it again before you start it up in the summer. The stuff that came out of mine after six years in the garage looked more like molasses than engine oil, and the original spark plug was covered in black fur.

The replacement plug has the correct tan colour round the electrode so perhaps the G900 desereves something better than Asda 'Car Club' oil. And follow the advice in the manual. Let the thing warm up for a few minutes before plugging anything into it. It will thank you with years of dependable service, even if your neighbours don't.

My reliable G900 now has fully synthetic motor oil in it, at ten quid a litre. Come back in five years time for the long term results.

Title: Clarke G900 generator
Category: Generators
Sub Category:
Reviewer: Sue
Related Link: Machine Mart Website
Added: May 20th 2006
Viewed: 17905 Times
Options: Send to a Friend  Print This Review

[ Back to Reviews Index | Back to Generators Index | Post Comment ]

Posted by: Badger05 on 2008-10-17 21:44:35
My Score: Top of All

Hi, I have just subscibed to this forum, and after some much needed advise....I recently purchased a Clarke G9OO generator (with no manual) to power my static caravan.You mention in your artical about changing the oil, how do change the oil ? I have taken both panels off my generator but can''t find anywhere or anything that i need to dis-connect in order to drain the oil out.Secondly,when i find out how this is done...How much oil do i put back and what grade of oil do i use ?

Your help is much appreciated!

User Info

Good Afternoon Guest! 
[ Register ]
[ Lost Password ] Forgotten Username ?

You must Register to interact with Members


  New Today: 14
  New Yesterday: 25
  Total: 87,139
  Latest: johnsc

 Most Ever Online
  Member(s): 464
  Total: 3,338

  Online Stats
  Member(s): 197
  Guest(s): 846
  Search Bot(s): 7
  Total: 1,050

01.  1302
02.  Abacist
03.  adonisito
05.  AfterTime
06.  aldra
07.  alfredthegreat
08.  alisea
10.  an99uk
11.  andrewball1000
12.  angelaa
14.  banque
15.  Barbizon
17.  Bica
18.  bigbazza
19.  Biglol
20.  Bill_OR
21.  bjandlin
22.  Blobsta
23.  blondel
27.  boringfrog
28.  Borisd0
29.  bormy
31.  briansheel
32.  BritStops
33.  brynric
34.  bsscolin
36.  cabby
37.  camallison
39.  Carl_n_Flo
40.  Charisma
41.  charlieshelby
43.  ChrisandJohn
45.  Chrisv
46.  cliffhanger
50.  cronkle
51.  CullodenMuir
52.  danielf
53.  davaha
54.  DavyCrocket
55.  DC4JC
56.  deefordog
57.  DeeGee7
58.  delawaredandy
59.  Deno
60.  Dethleffs
61.  DevonDuo
63.  Dill
64.  dmet
65.  dpsuk999
66.  dragabed
68.  drcotts
70.  EJB
72.  erneboy
73.  eurajohn
74.  Evs54
77.  Flyer109
78.  G7UXG
80.  GerryD
81.  GMJ
82.  goldi
84.  goneroming
86.  hogan
89.  inkey-2008
91.  jarcadia
92.  javea
94.  Jimblob44
95.  jo662
96.  JockandRita
97.  joedenise
99.  jonegood
100.  JP
101.  jwinder
102.  kaacee
103.  Kaytutt
105.  kenyon
107.  Kev_n_Liz
108.  kinsman
109.  legend654
110.  lifestyle
111.  listerdiesel
116.  moblee
117.  Mrplodd
118.  Murgzie
119.  neiliz
121.  Nethernut
122.  newleaf
124.  nsxfan
131.  paulmold
132.  peejay
133.  peterb
135.  piinch
136.  pmcclure
138.  prudence
140.  richardjames
141.  Rodav
142.  Roger7webster
143.  rolyk
145.  roxie
146.  Rudderman
147.  rugchucker
148.  safariboy
150.  Scolds
151.  scouter
152.  shingi
154.  Solwaybuggier
156.  soundman
157.  spencer
158.  spykal
160.  Stanner
161.  StAubyns
162.  stevenjcoope..
164.  Storageman
165.  subfiver
167.  Superlo
168.  TandH
169.  teljoy
170.  thedoc
172.  ThePrisoner
175.  tomnjune
176.  Tony0851
177.  tonyt
178.  tony_g
179.  trevorf
180.  tugboat
181.  val33
182.  valphil
183.  vana
185.  wango
186.  waspes
187.  Webby1
188.  wendyandjohn
190.  Whitebirdyman
191.  WildThingsKev
194.  worky
196.  Zepp
197.  zoro

Random Photos

Img 0474-800
Waste tank access
Hamble 2.06.12 037

Motorhome Survey

Have you / previous owners had your motorhome habitation checked during the following timescales ?

Last 12 months
2 Years
3 Years
4 Years
5 Years
6 Years
7 Years
8 Years
9 Years
10 Years
11 Years+


Votes 879

Desert Detours

Andalusia Tours

Desert Detours - Andalusia Tours