Started new thread 1991 RM80 11/19/2018 11:39 PM

Hey guys, Was thinking of starting a new project after my 2006 YZ250 (Now YZ315). Always liked the old RM's in the early 90's. What do you guys think of this little guy for about $600? I don't know enough about these or what they are worth. Looks pretty

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This forum thread has 16 replies

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 11/17/2018 10:30 AM

Thank you! Not going to lie, excited to be having a boy!

Added reply in a thread YZ250 Stock Pipe with PC R304 Combo 11/17/2018 10:29 AM

I love the sound of shortys and always put them on my bikes. Never noticed it losing revs or top end with shorty vs longer silencers. Little bit louder, but not that much. Still much quieter then 4 strokes. I say go for it. Nothing beats the sound of ... more »

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 11/16/2018 7:50 AM

https://photos.google.com/photo/AF1QipNVwh3xX4gyxyqzjWCoXAwsmumkIxNZiYpFD2kQ To answer your question about boy or girl, just did a gender reveal the other day. It's a boy! Bottom end is ok, but was looking pretty bad when I put on top end. Just wanted ... more »

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 11/16/2018 7:40 AM

Tom Morgan will actually be building it, along with flow benching reed cage and carb. He uses stock crank, balances it and uses OE Yamaha rod kit since OE is proven reliable.

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 11/15/2018 6:24 PM

Bottom end needs a rebuild. Is there a better time then now to get the cases matched to the top? Will be 76mm stroker, with modified bottom end. Will now be a YZ315. Why? I'm 33 and already having a mid-life crisis. Also my first baby is due in April-May ... more »

Added reply in a thread Price of used YZ250's 10/26/2018 5:45 PM

Bought this pretty rough 2006 YZ250 for $1900 in Socal (had to drive to Yuma, AZ). Nothing was really wrong with it, just incredibly ugly. Tore it apart at started over. Probably have more in it now then a new bike though... https://www.google.com/url?q=https://www.vitalmx.com/forums/Bike-Builds,46/2006-YZ250-TMR-YZ295,1345261&sa=U&ved=0ahUKEwjJzo6jsqXeAhUK-J8KHd4TA8MQFggGMAE&client=internal-uds-cse&cx=002903112843658474654:5jej5zin7sy&usg=AOvVaw3Hu2AHShssq51a0kfJAKJo ... more »

Added reply in a thread Anyone From San Diego? 10/16/2018 4:19 PM

Sounds like I am going to A1 with some people, not 100% sure yet though. Never been!

Added reply in a thread Anyone From San Diego? 10/15/2018 10:11 PM

I love IB! Favorite place so far.

Added reply in a thread Anyone From San Diego? 10/15/2018 9:07 PM

Been all over SD, finally got back in to dirt cycles and live in IB.

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 10/4/2018 8:09 AM

Not only that but porting which I forgot to mention. I think I asked what a ported YZ250 he does runs for jetting and it has a large main as well.

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 10/3/2018 8:50 AM

MXA recommends 180-182 MJ with aftermarket pipe and reeds at my altitude. Tom recommended 185 to play it safe. Could run 182 easily I'm sure. Either way, it runs really well with the 185. With the head modified to run the crappiest 91 octane gas and ... more »

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 10/2/2018 4:41 PM

I asked Tom Morgan the same question a few weeks ago and this was his response... "A big bore pulls more air volume thru the intake tract and also requires a smaller throttle opening to create the same torque. This raises the vacuum in the carb which ... more »

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 10/2/2018 3:21 PM

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 10/2/2018 3:17 PM

Final upgrade for a while! Not really anything else to do. Runs very strong. Even with 11-oz FWW and taller gearing it still hits hard and pulls forever.

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 9/25/2018 2:43 PM

0-500ft ASL (San Diego) Did not go leaner, went much richer per Tom Morgan 185 Main N3EW #2 55 Pilot 1-1/2 out on AS Redline oil 48:1 15/50 gearing It ran extremely well! I think jetting is spot on actually. Also took a field trip today...

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 9/25/2018 9:22 AM

Thanks, I think I may try zip ties along with more RTV silicon. Sub frame is good and everything lines up perfectly.

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 9/24/2018 9:19 PM

I have a brand new DEP pipe and R304 silencer. Maybe I will just order the new gasket but really kind of expensive $23.79 + shipping.

Added reply in a thread 2006 YZ250 (Tom Morgan YZ315 Stroker) 9/24/2018 8:55 PM

Finally got a solid 2 hour ride in, and bike ran great! Plenty of power, still a lot of snap even with the 11-oz flywheel but not obscene amounts. Far more then the stock 250 (of course). Next step is sending suspension to Enzo! Question for folks that

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Added bike check 2006 YZ250 (TMR YZ315 Stroker) 9/9/2018 10:40 AM