Author Topic: IT175F. Work in progress  (Read 1720 times)

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Offline Kiwit

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Re: IT175F. Work in progress
« Reply #10 on: September 12, 2017, 04:39:20 PM »
The plan so far is to length a 79 yz one to fit.  I like the idea of making it the best it could of been  in 79.

Offline Cooky375

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Re: IT175F. Work in progress
« Reply #11 on: September 12, 2017, 05:46:00 PM »
The 79 YZ shock is shorter than the IT, you would be better off with the 79 IT or 78 YZ since you are using the 78 YZ swing arm. The 79 YZ had a different design swingarm, using a shorter shock. If you choose to use a shock off a bigger bike ie 250 or 400, you will have to mod the frame as their shocks are larger diameter(i'm not 100% sure, worth checking).

I'm happy with the work done to my standard shock, it's no modern bike, but it still handles better than I expected. What are you going to use the bike for?

http://www.pulpmx.com/stories/look-back-old-moto-mags/gps-classic-steel/gps-classic-steel-87-79-yz125

Yeah Fred, they can move, I think they are an underated bike.

Offline Kiwit

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Re: IT175F. Work in progress
« Reply #12 on: September 12, 2017, 06:40:12 PM »
I'm pretty sure 79 yz shock mounts at top lower in frame  so it ends up at the same point, so if I can length the shock about 50mm it should work.. just an idea at the moment. Back up plan is probably yz-e shock  Bikes a project, building the bike I wish it had been back 79 the last time I had one. Am looking forward  to taking it out for ride tho!

Offline mboddy

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Re: IT175F. Work in progress
« Reply #13 on: September 12, 2017, 11:04:56 PM »
The YZ250/400D/E shock with the IT425G spring works great for me on my IT175F. I weigh 78kg.
I think Dave said the complete IT425G shock and spring works well too.
Vinduro Penrite Team
1980 IT125G, 1979 IT175F, 1984 IT200L, 1977 IT250D and IT400D

Offline Kiwit

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Re: IT175F. Work in progress
« Reply #14 on: November 25, 2017, 06:28:25 AM »
Work in progress up date.
Motors back in frame after a completely going over, good news and bad news as these things always seem to be, kick shaft was well worn in the case so had new bushes made and fitted, two broken gears in the gear box (and that probably explained  the reason why the bike had been in storage for years) good news was every thing  else was good even the piston wasn't  that bad and amazingly it was still the std piston, but did decide to rebore it while it was apart. Also found some yz125f forks so a rebuild for them is next on the list of jobs.

Offline Cooky375

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Re: IT175F. Work in progress
« Reply #15 on: November 26, 2017, 03:45:42 PM »
Nice work, it’s looking good. Have you taken it out for a spin?