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I’ve seen some nos but with cost of shipping to the uk wasn’t worth the cost… well maybe with the hassle I’ve had. Least I know to check them before fitting in the future

My local dealers said they weren’t available from Yamaha so I went for eBay or classic Yamaha specialist to get my parts.Couldn’t say where these came from as I bought them quite a while ago.

Update, so issue fixed I ordered new jets and filters. Fitted the 45 pilots, foam filters. Also gave the carbs a clean out once more to be sure. This did make starting the bike much easier and the reduced the effect of the rev hang. Upping the jet size didn’t stop the rev hang so I assumed I...

Thank you, just ordered some new jets in a few sizes to try along with some tubing to try replicate the H pipe if I need to or at least a longer intake pipe, might help a better air flow. I’ll pull the screws out and double check everything is there and good.

I understand that, I’m mostly hoping to just fix the rev hang, if it’s under powered or has flat spots while riding I could live with it, just not the rev hang on idle. Thank you for the help really appreciate it.

you have a fair point with the projects. if it’s something as simple as needing the h pipe set up with correct jetting I’ll persist and hopefully find a good medium ground. thanks for the advice do your self or anyone know if it’s the tuning issues are specific to H branch piece between the...

Ok I’ll try get some sort of h pipe configuration going, just curious how others have managed to get rid of the h pipe and had no issues?

Thanks for the reply, I’ll try a set of foam filters, I’ve also had no luck with any filters fitted. Can’t use the H piece due to space of where the new battery box now is. Yup floats set to 26mm Carbs are synced. move had them apart again blowing cleaner through all the passages checking...

Hi, need some advice for getting my bike running right. It’s an xs400se The main issue right now is the rev hang it has on idle. And occasionally won’t idle will just stall, or when idling and going to throttle it cuts out. On warmer days it will idle but have rev hang. Guessing it’s running...

Hi I'm in the middle of rebuilding my XS400's engine and I am in need of a new Cam chain guide , tensioning guide. Part number 1L9-12241-02. Does anyone know where I can possibly get a NOS item ? I've tried many Yamaha dealers here by me in the UK and have been looking through ebay finding one...

Thank you :)

I've busy restoring/chopping a SOHC 82" xs400 but need to know the tyre sizes for the bike. and if anyone knows where to get them from? idealy id like the main branded tyres, pirelli , Michelin , bridgestone... Also if anyone knows whats the biggest tyre i could fit the the rear? if a...

where would i be able to buy new jets from ?

there is always nos? fair bit of money but it will give you the bursts of power you want.