GRiSO ghetto
Would you like to react to this message? Create an account in a few clicks or log in to continue.


12425 - Established June, 2013 - all GRiSO, all the time...
 
HomeRegisterLog in

 

 Engine Miss on the RH cylinder.

Go down 
2 posters
AuthorMessage
GRD
Tanabuso
Tanabuso
GRD


Posts : 61
Join date : 2017-05-16

Engine Miss on the RH cylinder. Empty
PostSubject: Engine Miss on the RH cylinder.   Engine Miss on the RH cylinder. Icon_minitime1Sun Nov 18, 2018 6:24 pm

After rollerising I did some service work on the GRiSO.
Valve clearances adjusted.
New plugs and boots.
Throttle bodies balanced.
Installed a Beetle map.

Bike runs great. Huge improvement with the map.

The only issue I have is that the bike has a miss on the RH cylinder when the engine gets hot, waiting at a set of lights.

On start up the idle is fine and while moving I cannot notice the miss.

Hooked up Guzidiag and gauges and had another look this morning.

Idle is good until temp gets to 85-90, then the RH cylinder starts missing.
A couple of readings I noticed while this was happening.
Temp 88
Idle stepper controller 24 (was 40 while temp was lower and idle good)
Idle stepper base 70

Anything else I should be looking at?

On Marks suggestion I increased the CO to +2.
This didn't make any difference other than a bit of popping when backing off the throttle.

Any suggestions on what I could do here before I have to look for someone to start diagnosing this?
Back to top Go down
Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 10724
Join date : 2013-05-29
Age : 67

Engine Miss on the RH cylinder. Empty
PostSubject: Re: Engine Miss on the RH cylinder.   Engine Miss on the RH cylinder. Icon_minitime1Sun Nov 18, 2018 6:43 pm

Check both ends of the HT lead. What caps are you using?

Pete
Back to top Go down
GRD
Tanabuso
Tanabuso
GRD


Posts : 61
Join date : 2017-05-16

Engine Miss on the RH cylinder. Empty
PostSubject: Problem solved   Engine Miss on the RH cylinder. Icon_minitime1Sun Nov 18, 2018 8:51 pm

Pete Roper wrote:
Check both ends of the HT lead. What caps are you using?

Pete

Yeah I did that and swapped coil around, NGK caps.

Just after I posted, a couple of 6 mm brake bleeders arrived in the post, so I thought I'd check the last thing I did on the bike, the low RPM throttle body sinc.

I hadn't opened up the low RPM adjuster on the right hand side enough.
Opened up a bit more and no more miss, steady as, right up to 100 degrees. Very Happy

Transplant likes this post

Back to top Go down
Sponsored content





Engine Miss on the RH cylinder. Empty
PostSubject: Re: Engine Miss on the RH cylinder.   Engine Miss on the RH cylinder. Icon_minitime1

Back to top Go down
 
Engine Miss on the RH cylinder.
Back to top 
Page 1 of 1
 Similar topics
-
» Chasing an odd miss.
» Dropped a cylinder
» Having a look at the cylinder
» Down to one cylinder at low rpm
» dead cylinder

Permissions in this forum:You cannot reply to topics in this forum
GRiSO ghetto :: The Ghetto :: GRiSOLOGY-
Jump to: