Got new bike, again! Pg 11/12

[golf-sib]

As usual I can't leave $hit alone, just put a 13t front sprocket on over the 14t on the front 

For some reason yammie think 14t sprocket on 10bhp at 10k should do 90mph... it struggles at 60, so I thought what the heck, put 13T on and took it for a spin, acceleration is much better/nicer, also my chain seemed quite slack, about 2.5" up/down combined (Yammie book says 1"). So this got tightened. Is this normal, the bikes new and approaching its run in service at 600.

[golfyste]

Was it 2.5" after you changed the sprocket as that would make it loose.
With it being new you will get Initial stretch from te chain which would normally be sorted on the 600 mile service.

We're going to need a bike section on the forum 

[golf-sib]

Was it 2.5" after you changed the sprocket as that would make it loose.
With it being new you will get Initial stretch from te chain which would normally be sorted on the 600 mile service.

We're going to need a bike section on the forum 

Nope before the sprocket, but it may just be initial stretch as you suggested, but then again I know sweat f-all about bikes. Didn't find the wheel alignment and tensioning the chain not as bad as I thought. Sprocket change was wayyyyyyy to easy, bikes are very easy to work with and I love it rather than breaking my back leaning over the bonnet or underneath it with rust flaking in my eyes.

Who do we complain to about a bike section 

[golfyste]

Everything todo with working on bikes is easy especially on dirt bikes as there is loads of room do mess with anythin you like haha and as its not my main transport I don't have to rush a Job as if i don't finish I can just leave it and finish another day 
Just keep your eye on the chain and it will be ok 

[archie837]

Used to have tighten the chain up weekly on a 25 mile a day round commute so should be about right.

[golf-sib]

Used to have tighten the chain up weekly on a 25 mile a day round commute so should be about right.

ah brilliant, I do about 38miles a day. I'll keep an eye on the chain then.

Got to say the bikes a lot better geared down, hits and holds 70 and going by the gearing maxes out around 80 unlike yamahas stock ratio that's overgeared at 90mph. It accelerates and responds a hell lot better geared down.

Also booked it in for its run in service, which I think is around £20.

Also any recommendations on tires for the future for good grip.

[golfyste]

Get some hot grips....

[golf-sib]

Also any recommendations on an exhaust? I know the stock exhaust is known for rust issues in a year or two time and a SS one is recommended. I had a look at a GPR one as it seems the one that people recommend. However going on ebay I'm confused:

THIS IS A ROAD LEGAL EXHAUST FITTED WITH A REMOVABLE DB RESTRICTOR AND A REMOVABLE BAFFLE. PLEASE BE VERY CAREFUL WHEN BUYING GPR ON E BAY. IF THE LISTING SAYS "FULL POWER" IT MEANS IT IS NOT UK ROAD LEGAL AND WILL BE STAMPED NOT FOR ROAD USE AND WILL NOT HAVE A REMOVABLE BAFFLE OR DB RESTRICTOR. THEY MAY ALSO HAVE A DIFFERENT INTERNAL DESIGN. THESE VERSIONS ARE CHEAPER BUT IN MANY CASES THEY WILL CAUSE POOR RUNNING AT LOW REVS. IF NOT SURE PLEASE CALL US FOR ADVICE.

What the hell is a removable baffle and DB restrictor? I'm looking to make the exhaust gases flow better and a stainless steel exhaust, but not looking at anything loud, would this do?

[golfyste]

Db reducer is a decibel reducer (make it quiter)
And a baffle is the does the same thing haha

[golf-sib]

Fair enough, so wheres the cat, in the exhaust too as everything is slightly different on a bike compared to a car.

Also are there any exhausts on a 125 more freeflowing or only the decat ones? So I know what I'm looking for in the future?