Crm slow acceleration?

If a new member, introduce yourselves here, maybe even a pic of your bike.
User avatar
Darrylmartin
New kid on the block
New kid on the block
Posts: 17
Joined: 30 May 2015, 10:04
Re: Crm slow acceleration?

Post by Darrylmartin »

Thanks for the info guys.. I am going to do a compression test tomorrow and I'm going to check jet, and plug
User avatar
Darrylmartin
New kid on the block
New kid on the block
Posts: 17
Joined: 30 May 2015, 10:04
Re: Crm slow acceleration?

Post by Darrylmartin »

Ok so I done a compression test..... It's reading 95psi.... That's low right? Plug was a good colour tho... :-/
fallenmikethebike
NWAA Supporter
NWAA Supporter
Posts: 3520
Joined: 02 Dec 2007, 16:02
Bike Owned: MK3
Location: Mid Surrey
Re: Crm slow acceleration?

Post by fallenmikethebike »

That's very low, 150 psi is more normal.
Mike
VFORCE REEDS-MUGEN HEAD AND BARREL-WHITE POWER-ALL ON MY WISH LIST!!
User avatar
Darrylmartin
New kid on the block
New kid on the block
Posts: 17
Joined: 30 May 2015, 10:04
Re: Crm slow acceleration?

Post by Darrylmartin »

Ok... What would be the main cause? ...I suspect the last owner replaced piston with same size but not rebore.....
User avatar
knackeredMk1
Super Moderator
Super Moderator
Posts: 4185
Joined: 03 Nov 2006, 17:41
Bike Owned: Modified Mk1
Re: Crm slow acceleration?

Post by knackeredMk1 »

Take the top end off to check but probably rebore and new piston and rings.
User avatar
Darrylmartin
New kid on the block
New kid on the block
Posts: 17
Joined: 30 May 2015, 10:04
Re: Crm slow acceleration?

Post by Darrylmartin »

Ok will do I'm guessing leisure trail is the best place to go?..... Also I think what happened was the guy that had it before me did not run in the last piston.... Sounds like it has piston slack.. :-(

Post Reply