Exhausts

[seang14]

Hi Guys
So I’ve just built up a 250LC,
Bike came with a set of exhausts with 4L0-14711
Are these correct pipes for a 350
Bike also has 31W00 Carbs I believe to be from YPVS
When I kick bike over it runs second kick and ticks over fine!
When I Rev bike it seems bog down & Not Rev crisply, keen to take out on road but not until I’m sure I have correct pipes on?
Will bike run ok with the PV Carbs

Any Advice would be much appreciated, keen to get out on the Bike when the Suns a Shining!!!🤪🤪

Cheers Sean G

[seang14]

Hi Guys
Sorry message should have read just built up 350LC!!

Cheers Sean G

[midlifecrisisrd]

Hi

250 and 350 pipes are marked 4L0

350 pipes have a 0 stamped on the rear mounting bracket

Only the number of holes in an internal baffle plate the won't cause your problem

31w are German restricted 350 ypvs carbs

Only jetting to match the restricted exhausts on the 31w

You will need to fit 27.5 pilot jets to get it to run correctly

Steve

[midlifecrisisrd]

250 lc pipes on a 350 will give more mid but less power up top

Steve

[seang14]

Hi Steve
So if I need to put 27.5 Pilot jets in Carbs what size main jets would you suggest?
Cheers Sean G

[midlifecrisisrd]

Standard ypvs carbs are 240 mains

Steve

[4l04ever]

I run 31W carbs on an LC with 25 pilots fitted. Bike has Microns and modified airbox.