Any one have the part # for the GRP rod that fits the MR21 B01A?

I'm having problems tuning this engine. Does anyone know the factory setting's?

I can check when I get home on mine and let you know. What is the engine doing or not doing?

Hi,
I have just bought a second hand Ninja MR.12 T01A and was wondering what plug I should run with is as it came with a 5,6 and 7. I asked at my LHS an he said the 5 was too hot to run in it. Thanks

I've run 5's in mine since I got it with little problem. I know quite a few people run 7's though, which the motor seems to like once it's tuned.

Whats a good plug to run on the Ninja .21 Ninja? Am currently running an OS P3 Ultra Hot. is this a good plug to stick with? Thanks.

Did you ever find it? I would like the part# also.

Can anybody tell me the factory carb settings for the MR12 T01? thanks

i believe that ninja is releaing the jx series on road engines is this true or not

I heard that as well and look like it is going to be O.S. Speed base

Ive been running a MR-B01A in an MBX5T this season and it has suffered from a lack of bottom end. I have used a 2050 and 9853 pipe on it. I switched to 1.1 spings and it helped a little. This past weekend i tried a JP-1 pipe and it really came alive. It definitly lowered the max rpm but im ok with that for now. I ran a 10 minute heat and still had some fuel in the tank without a pit stop. I have heard that the JP series pipes are fuel hogs. is there a better low end pipe i should be using?

thanks, Steve

Can anyone tell me where i can get parts for the GRP12 engines or am i out of luck

I would be grateful for any help

Mr. BM, what do you need?

Hi Jay, I'm looking for a piston and liner for my MRT 12 but i don't like my chances.
I thought someone might know of a shop that has some old stock but no such luck
Looks like i'll have to run the Sirio EVO4 and the XXX and put the GRP on the shelf in the shed.

guy,

where can i find piston sleeve for my Ninja MRT 21. engine. or anyone had old piston for this engine. My engine was good comprassion but the piston was had a problem. Please help me.. .

Thank ... you.