Latest topics
» tank badge fixing screws
Today at 1:58 am by intrudin

» Fuel Tank cap
Yesterday at 9:00 pm by bill2b

» Age etc of plover please?
Yesterday at 6:57 pm by piston 197

» Cruiser 89 air filter for Viliers 4T engine
Yesterday at 4:13 pm by FB vincent

» What's this from
Yesterday at 3:46 pm by kerabo

» rear wheel merlin L/51 125cc
Yesterday at 3:37 pm by Erik Grandt

» F B Spares
Yesterday at 9:02 am by FB vincent

» Slipping AMC 17T clutch
Sat Nov 18, 2017 6:37 pm by Cruiser79

» what type of oil?
Sat Nov 18, 2017 6:03 pm by alan67


Rough running Cruiser

View previous topic View next topic Go down

Rough running Cruiser

Post  cruiser5588 on Mon Aug 15, 2016 12:51 pm

My Cruiser 89, 2T engine is running very rough. It smokes, misfires, spits back through the carb, and will not pull. It revs and pulls fine for the initial 50 yards, then all the above symptoms start.

I have fitted new plugs, points, condensers, checked timing (heads off, gaskets removed), and stripped and cleaned the carb. I have blown through all jets with the airline.

The exhaust smokes, and the plugs are black and wet, with oily muck blowing from the exhausts.

The mixture is currently 25:1, and the needle is set at the second to top notch.

Any ideas, or tea and sympathy would be greatly appreciated.

Mike
avatar
cruiser5588

Posts : 13
Join date : 2016-03-05
Age : 70
Location : Hythe, Kent

Back to top Go down

rough running

Post  piston 197 on Mon Aug 15, 2016 2:31 pm

Have you changed the crank case seals ? could it be drawing oil in from the clutch case ?
Are you using a modern two stroke oil ? as these should run virtually smoke free ?
Have you tried switching the fuel off once started to see if flooding of the carb is the problem ?

JH
avatar
piston 197
Moderator

Posts : 3622
Join date : 2008-08-17
Location : ross-on-wye

Back to top Go down

Poor running

Post  kerabo on Mon Aug 15, 2016 5:02 pm

Has this not got a Villiers carb? Second notch sounds more Amal

Regards Ken
avatar
kerabo

Posts : 2123
Join date : 2008-02-11
Age : 67
Location : Falcon 87. Trials 93 Special. Powerbike 56. Falcon 81 Green Lane bitsa. Sunbeam S8. Honda Deuville.

Back to top Go down

notches

Post  piston 197 on Mon Aug 15, 2016 5:19 pm

Yes it should have a Villiers carb , a S22, and the needle is adjusted in notches like the Amal carb Ken

JH
avatar
piston 197
Moderator

Posts : 3622
Join date : 2008-08-17
Location : ross-on-wye

Back to top Go down

Rough running Cruiser

Post  cruiser5588 on Mon Aug 15, 2016 6:38 pm

Hi JH

I haven't changed the crankcase seals, and I am using oil purchased from Villiers Services. Not tried running it with the fuel turned off, but there is no flooding with the fuel on but engine off. I did check the float to make sure it had no puncture. The strange thing is, that apart from being a bit smokey, the bike ran fine, and these symptoms started suddenly. The only thing I had done was to add fuel with a bit less oil, and lower the needle on notch to try to lessen the smoking.

Mike
avatar
cruiser5588

Posts : 13
Join date : 2016-03-05
Age : 70
Location : Hythe, Kent

Back to top Go down

started suddenly ?

Post  piston 197 on Mon Aug 15, 2016 6:43 pm

Suggest drain the fuel go back to original mix and put the needle back where it was ?
if it still has the problem , then what you changed was not the problem and the seals have probably gone, just hope it is not the centre one , if so crank has to be split
JH
avatar
piston 197
Moderator

Posts : 3622
Join date : 2008-08-17
Location : ross-on-wye

Back to top Go down

Rough running Cruiser

Post  cruiser5588 on Wed Aug 17, 2016 6:40 pm

I have spoken to Villiers Services, and my fears have been confirmed. It's the dreaded crankcase seals. however, on the bright side, their re-con service sounds good, with the prices quite reasonable, and it comes with a warranty. So engine out then.

Thanks for all the advice.

Mike
avatar
cruiser5588

Posts : 13
Join date : 2016-03-05
Age : 70
Location : Hythe, Kent

Back to top Go down

Re: Rough running Cruiser

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum