4g mkII

Bikes or not. Whatever
ken-drink
Holder of a Nylon Anorak
Holder of a Nylon Anorak
Posts: 238
Joined: Fri Aug 18, 2017 12:21 pm
Contact:

Re: 4g mkII

Post by ken-drink »

As far as I can tell it has it's original engine and gearbox,
will_curry
Holder of a Golden Anorak
Holder of a Golden Anorak
Posts: 1189
Joined: Thu Oct 08, 2015 12:56 am
Contact:

Re: 4g mkII

Post by will_curry »

The gearbox should be a GB7 with an appropriate date code, probably K54
to K55.

It's still possible the original quadrant and ratchet pinion have been replaced
with the far more common but incorrect parts. It'll be worth checking the next
time you have the gearbox outer cover off.
Chris Sealy
Holder of a Nylon Anorak
Holder of a Nylon Anorak
Posts: 146
Joined: Sun Jun 05, 2022 6:40 pm
Location: Warwickshire
Contact:

Re: 4g mkII

Post by Chris Sealy »

I've just checked my GB7 gearbox kickstart. If I bring any piston up on compression, then allow the lever to return to the fully up position. Then push it all the way down I get just three pistons up to and over compression. Try yours Ken.
ken-drink
Holder of a Nylon Anorak
Holder of a Nylon Anorak
Posts: 238
Joined: Fri Aug 18, 2017 12:21 pm
Contact:

Re: 4g mkII

Post by ken-drink »

Will do, but not tonight,
User avatar
dave.owen
Holder of a Golden Anorak
Holder of a Golden Anorak
Posts: 1951
Joined: Wed Mar 23, 2011 10:05 pm
Location: swindon
Contact:

Re: 4g mkII

Post by dave.owen »

Will all depend on in your primary gearing
AOMCC Treasurer
Chris Sealy
Holder of a Nylon Anorak
Holder of a Nylon Anorak
Posts: 146
Joined: Sun Jun 05, 2022 6:40 pm
Location: Warwickshire
Contact:

Re: 4g mkII

Post by Chris Sealy »

True Dave. My thinking is; If my very easy to start squariel is 3 compression strokes, and Ken's is 5 or 2, we may be on to something.
ken-drink
Holder of a Nylon Anorak
Holder of a Nylon Anorak
Posts: 238
Joined: Fri Aug 18, 2017 12:21 pm
Contact:

Re: 4g mkII

Post by ken-drink »

Just been out on it, and given it a bit of stick on the dual carriageway, it runs well, it has 3 compression strokes on the kick start, need to rethink the external oil filter, it's a sod to change.
It backfires a bit on the overrun, plug colour looks ok.
nevhunter
Holder of a Platinum Anorak
Holder of a Platinum Anorak
Posts: 5564
Joined: Tue May 10, 2011 9:42 am
Location: Victoria.. Australia.
Contact:

Re: 4g mkII

Post by nevhunter »

Lean at idle or airleak at exhaust to Head join. Nev
User avatar
simon.holyfield
Holder of a Platinum Anorak
Holder of a Platinum Anorak
Posts: 5147
Joined: Mon Oct 17, 2011 11:16 pm
Location: Norfolk
Contact:

Re: 4g mkII

Post by simon.holyfield »

ken-drink wrote: Fri Jan 30, 2026 3:28 pm Just been out on it, and given it a bit of stick on the dual carriageway, it runs well, it has 3 compression strokes on the kick start, need to rethink the external oil filter, it's a sod to change.
It backfires a bit on the overrun, plug colour looks ok.
Where's your filter Ken?
cheers

Simes
Machine Registrar (registrar@arielownersmcc.com)

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
https://ariel-square-four.blogspot.com
ken-drink
Holder of a Nylon Anorak
Holder of a Nylon Anorak
Posts: 238
Joined: Fri Aug 18, 2017 12:21 pm
Contact:

Re: 4g mkII

Post by ken-drink »

It's under the gear box,
Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests