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View Full Version : Trx90 Bigbore Info



Johnny & Monica
02-09-2007, 02:08 PM
Been making calls an trying to find the best set up for my son 06 trx90 all week , We`ve bougth 4 different big bore kits from Charles an then Eric at IC racing over the years , I guess there know longer around . So I`ve called quadfast , An other number off IC site , One would have to call around an order something , I dont want to ended up with a pit bike set-up , Would like the 125 set-up but was told that the 06 e-starts wont turn over a 125 bigbore because of the compression , So I`m even entertaining the ideal of a earlier style motor , Anyone with any info or input I`ll be thankful for :confused: even a older motor forsale

racinmason911
02-09-2007, 02:16 PM
Robbs Racing might be able to help you. I've heard the name Scott Cain also.

Pappy
02-09-2007, 02:28 PM
id go straight to Powroll.

as far as cranking over the higher compression, there is not an available drop in higher cca battery for the 90 but i cant see the compression on such a small engine causing an issue.

Johnny & Monica
02-09-2007, 02:44 PM
I`ve called poweroll awhile back An thougth about the bigbore sleeve an maybe the crank work done , I was also told that the 06 trx`s have a heavier flywheel :confused: What TRX things you have left Pappy ?

mcatvme
02-09-2007, 03:19 PM
The TRX w/electric start will turn over a 125. Just call Rich at Hetrick Racing 1-814-676-0477.

Johnny & Monica
02-09-2007, 03:50 PM
Originally posted by mcatvme
The TRX w/electric start will turn over a 125. Just call Rich at Hetrick Racing 1-814-676-0477.


Thanks thats what I was really wanting to do in the 125 national motor :D I tried calling but they must of already closed for the day , I`ll try Monday morning Thanks

911
02-09-2007, 06:51 PM
if you wqant to go to 125cc i'd def. call robbs if you don't want to change the crank you can do a 114cc you'r self for pretty cheep. i bought everything through beatrice cycle

ROBBSRACING
02-09-2007, 09:26 PM
The 06-07 models have no problems at all turning over with hi compression. I personally prefere the non e-start model though. There is nothing wrong with using some of the pit bike parts either. You just need to know which ones work good. There are ALOT of pit bike parts out there that are junk and other that the quality is good but just dont work well at all on an ATV. If I can help give me a call.

Pappy
02-10-2007, 08:02 AM
Originally posted by Johnny & Monica
What TRX things you have left Pappy ?

I dont think i have much of anything left. pretty much everything went to help out Zack Burke get his newest 90 rolling. we never ran a big bore so i have no engine parts, never did:p If I could have afforded it, there would have been a Robbs 125 in our trx:p

GILCO
02-11-2007, 05:49 PM
Go to Hondatrx90.com give Scott Cain a call he can fix you up.

thumper492
02-12-2007, 05:05 PM
i tried to go to hondatrx90.com this site does not work any other way to get a hold of scott thanks

flht_db
02-12-2007, 05:48 PM
Originally posted by thumper492
i tried to go to hondatrx90.com this site does not work any other way to get a hold of scott thanks

I tried it with www.hondatrx90.com and was redirected to scrminis.com links on the side were not working but it did have contact info.

Dennis

WOLFPACK
02-12-2007, 07:23 PM
Originally posted by Johnny & Monica
I`ve called poweroll awhile back An thougth about the bigbore sleeve an maybe the crank work done , I was also told that the 06 trx`s have a heavier flywheel :confused: What TRX things you have left Pappy ? Hands down Robb builds the fastest most dependable TRX motor in the business!

Johnny & Monica
02-13-2007, 10:13 AM
Originally posted by ROBBSRACING
The 06-07 models have no problems at all turning over with hi compression. I personally prefere the non e-start model though. There is nothing wrong with using some of the pit bike parts either. You just need to know which ones work good. There are ALOT of pit bike parts out there that are junk and other that the quality is good but just dont work well at all on an ATV. If I can help give me a call.



Robb gave you a call voice box full , Sent ya a PM Thanks

ROBBSRACING
02-13-2007, 09:00 PM
Sorry. Its just very busy rite now. I am in the shop everyday but unfortunately I cant keep up with the phone and get all the work done. I try to balance it the best I can. Keep trying and you will get me.

trompen542
02-27-2007, 06:19 AM
for motor work try flytechmotorsports.com they do good work at a reasonable price.