Help & FAQs    Search BCF    Members    Groups    Events Calendar
Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


How many more problems?!

 Reply to topic
Bike Chat Forums Index -> The Workshop
View previous topic : View next topic  
Author Message

SpannerMonkey
World Chat Champion



Joined: 26 Aug 2010
Karma :
PostPosted: 17:40 - 02 Nov 2010    Post subject: How many more problems?! Reply with quote
took the GN250 in for its clutch replacement today and asked the bloke to have a listen to the engine for me as i felt it was making a tappety noise, and I wanted confirmation.
He knelt down to the engine, listened, rose back up and told me I'd better get rid of it quick.
Apparently according to him the cam chain is on its way out.
the noise to me sounds like it's coming from the head and sounds a bit like valve chatter but I lack in experience.
Without stripping the engine down is there any way of checking this? I'm thinking of getting a second opinion from another garage.
The bikes done 20,000 and is on a 1990 plate.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

cb1rocket
World Chat Champion



Joined: 30 Jan 2010
Karma :
PostPosted: 18:58 - 02 Nov 2010    Post subject: Reply with quote
it could just be a simple need for the valve tappets to be adjusted to the correct clearances.

I imagine these bikes are quite simple. Somone with more knowledge will come along.

As with all bikes these mostly get ignored in the service and so nobody bothers with them, then complain their engine is buggered......

Hope you get it sorted
 Back to top
View user's profile Send private message You must be logged in to rate posts

SpannerMonkey
World Chat Champion



Joined: 26 Aug 2010
Karma :
PostPosted: 19:01 - 02 Nov 2010    Post subject: Reply with quote
cb1rocket wrote:
it could just be a simple need for the valve tappets to be adjusted to the correct clearances.

I imagine these bikes are quite simple. Somone with more knowledge will come along.

As with all bikes these mostly get ignored in the service and so nobody bothers with them, then complain their engine is buggered......

Hope you get it sorted


I've already changed the oil and filter... changed the clutch, cleaned the air filter, new spark plug, and changed the oil and filter again lol
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

DrDonnyBrago
World Chat Champion



Joined: 03 Jan 2010
Karma :
PostPosted: 19:13 - 02 Nov 2010    Post subject: Re: How many more problems?! Reply with quote
spannermonkey91 wrote:
took the GN250 in for its clutch replacement today and asked the bloke to have a listen to the engine for me as i felt it was making a tappety noise, and I wanted confirmation.
He knelt down to the engine, listened, rose back up and told me I'd better get rid of it quick.
Apparently according to him the cam chain is on its way out.
the noise to me sounds like it's coming from the head and sounds a bit like valve chatter but I lack in experience.
Without stripping the engine down is there any way of checking this? I'm thinking of getting a second opinion from another garage.
The bikes done 20,000 and is on a 1990 plate.


Did he then offer to buy it from you for £15 and a mars bar?

Fitting a new cam chain isn't that difficult, certainly not new bike difficult. Sure it wasnt the cam chain tensioner guides or something? They could potentially require a lot more work to replace if they are in the crankcase and tricky to get at.

I doubt he can really get a good idea that dire things will happen soon just from listening. Doubt even a new engine on that bike is expensive, adjust the valve clearances to eliminate that and have another garage listen to it.

Valve clearances on wee bikes of that era are a piece of piss btw, just get yourself a manual and follow it closely with a mate Thumbs Up .
 Back to top
View user's profile Send private message You must be logged in to rate posts

Digit
Scooby Slapper



Joined: 22 Aug 2010
Karma :
PostPosted: 19:27 - 02 Nov 2010    Post subject: Reply with quote
I wouldn't expect the cam chain to be shot in 20000 miles, tensioner possibly, more likely tensioner adjustment IMO.
Either way I wouldn't get shot of it till you've checked.

Roy.
____________________
Happy daze!
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

cb1rocket
World Chat Champion



Joined: 30 Jan 2010
Karma :
PostPosted: 20:04 - 02 Nov 2010    Post subject: Reply with quote
spannermonkey91 wrote:
cb1rocket wrote:
it could just be a simple need for the valve tappets to be adjusted to the correct clearances.

I imagine these bikes are quite simple. Somone with more knowledge will come along.

As with all bikes these mostly get ignored in the service and so nobody bothers with them, then complain their engine is buggered......

Hope you get it sorted


I've already changed the oil and filter... changed the clutch, cleaned the air filter, new spark plug, and changed the oil and filter again lol


yes but that won't cure the tapping sounds lol
 Back to top
View user's profile Send private message You must be logged in to rate posts

rob_scott92
Could Be A Chat Bot



Joined: 28 Mar 2009
Karma :
PostPosted: 20:22 - 02 Nov 2010    Post subject: Reply with quote
Quote:
I wouldn't expect the cam chain to be shot in 20000 miles


The cam chain on my Gs was out of adjustment at around 18,000 i think, although i have no idea wether that was correct mileage or not Rolling Eyes It was an '82 bike mind Thinking

What year is the Gn? I imagine the 250 version is very similar to the 125 but obviously i cant be 100% The 125 Gn had the same engine as the Gs.
____________________
First bike: 1982 Suzuki Gs 125 'The beast MK1' Wink > 1988 Honda Cb 350's' FOR SPORT! (Good ol' oil burner!) > 2001 Suzuki Sv 650 's' Made it out of the 80's! > 1997 Honda Cbr 600f :p
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

Syris the Indomitable
Crazy Courier



Joined: 22 Oct 2010
Karma :
PostPosted: 20:30 - 02 Nov 2010    Post subject: Reply with quote
Yeah taps no problem, knocks big problem.
That my analogical brave wave for today!

You can do the valve clearences and chain tensioner your self, just buy the manual. Won't cost much to have done by a mechanic too.
____________________
In Greek mythology Ichor is what immortals have in the place of blood
Those that mind, don't matter...Those that matter, don't mind. Do you agree with this?
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts
Old Thread Alert!

The last post was made 15 years, 97 days ago. Instead of replying here, would creating a new thread be more useful?
  Display posts from previous:   
This page may contain affiliate links, which means we may earn a small commission if a visitor clicks through and makes a purchase. By clicking on an affiliate link, you accept that third-party cookies will be set.

Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT
Page 1 of 1

 
 You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 
Debug Mode: ON - Server: birks (www) - Page Generation Time: 0.06 Sec - Server Load: 1.13 - MySQL Queries: 13 - Page Size: 58.73 Kb