TDR issue

[TDRnoob]

@calum Hi. Did you change jetting after when you went for premix? If changed then could you remember what sizes for pilot jet and main jet. Thank you

[Calum]

@tdrnoob I ran a completely different carburetor, so all my jet sizes would have been changed.

Plus I ran far from standard settings. Jetting must done to suit the machine you are riding, no two machines are the same so jetting is best done to accommodate this.

[TDRnoob]

@calum I have found the details of my carb it is

PHBH28 Dellorto carb

main: 142
choke: 60
atomiser: 266d
needle: x18
pilot :45

I have removed the oil pump and installed the plate cover for hole. Tomorrow engine is coming back after bottom rebuild. Just thinking should I change jetting. Any advice

[Calum]

@tdrnoob I'm not familiar with that carburetor myself, as said, jet accordingly.

If it's detonating, if it's spluttering, then you may need to jet to suit.

But at a guess I wouldn't have thought you'd need to rejet.

[TDRnoob]

@calum Thank you

[Nottsbiker]

You should be able to get any spares you need from Allens Performance who stock parts for all makes of carb

[TDRnoob]

@nottsbiker Hi. You wrote earlier to increase the jetting by 5%. It has pilot jet and main jet so do you mean those two to change to higher ones by 5%?

I will test the bike with the original ones first

[Nottsbiker]

Ps I've picked up a complete pdf of the 3SH parts list with full pictures and Yamaha part numbers from the German TDR forum.

I'm currently in France on holiday but can email it to you when I'm near some wifi if it's any use to you?

[Nottsbiker]

@tdrnoob said in TDR issue:

@nottsbiker Hi. You wrote earlier to increase the jetting by 5%. It has pilot jet and main jet so do you mean those two to change to higher ones by 5%?

I will test the bike with the original ones first

I'm not an expert on jetting just relaying what I'd read years back. If in doubt get it set up by a tuner

[TDRnoob]

@nottsbiker Thats great! I really need it.

Could you please email it to me d.matuiza@gmail.com

Many thanks

[Nottsbiker]

Sent over!

[Mightyman]

@Nottsbiker is there many pages? It would be great if we can get them uploaded into a thread of their own.

[Nottsbiker]

Iirc about 70 ish

[TDRnoob]

Quick update

So my TDR belgarda had a full engine rebuild by Roadrunners motorcycles.

Also I have started premix. I used about 35 ml of 2 stroke oil to mix with the petrol.

There is video

https://www.youtube.com/watch?v=gjEHSmpNIgg

What do you think guys?

Just wondering if it everything ok.

[Calum]

I used 200ml oil to a full tanks. Approx 10 litres.

Lovely little whistle to that engine too. Sounds great.

[Mightyman]

Never heard a sound like that coming from one of these

[oldman]

Sounds a bit chirpy? Can't think what would cause that, unless its just the recording

[Zrako]

Oh thats same thing as I had on my dt. Thats the starter clutch not releasing after engine start.

[Nottsbiker]

Sounds like the engine is very tight to me from the rebuild. Hard to tell from a YouTube video

Looks like you are making good progress though mate

[Zrako]

https://youtu.be/cleKkIbDTeI

Check my vid , same sound