Question about 2007 Yamaha YZF-R1

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I'm 200+lb rider I want to use an aftermarket replacement fork spring(racetech) but I'm not sure as to what size or spring rate I should use I recently did a trackday and had a tuner setup my suspension he suggested I replace my fork springs to accommodate my size ...please any suggestions would be greatly appreciated

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Hi, Tom I would contact Racetech they would be the best people to ask your question and get professional feedback for more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Yamaha R1 YZFR1 2007 2008 Service Repair Manual Download Download Manuals...
Race Tech Gold Valve Fork Kit Yamaha YZF R1 07 10
OEM parts for Yamaha

Posted on Sep 01, 2016


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Hi there,
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SOURCE: worn fork seals

here you go bud, all free parts catalogue / (manual) for your yamaha bike.

hope this helps.

if you have other questions just let me know.


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SOURCE: replacing fork fluid

1st measure the fluid you take out and make sure you put back the same amount 2nd the fork tube comes out of the bottom half after you unscrew the allen head bolt on the very bottom of the fork

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SOURCE: 2000 yz125 kickstart spring is broken

Not sure of anything aftermarket. You drain the oil, remove the right side and there is the spring. You will need a new gasket, it really isn't very difficult.

Posted on Jul 04, 2009

SOURCE: Yamaha xj 900 s Front fork oil amount in cm

The forks hold 286ml or 9.67 US OZ of oil, best would be to use hydraulic oil.
Good Luck.

Posted on Jan 28, 2010

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SOURCE: my 05 r1 has now done 18000 miles and the shock

Change your fork oil to something more suited to your driving style. Those forks may be feeling tired, but they works nearly as hard as your valves. The oil has most likely broken down and needs replacement anyway. Do some shopping and ask the experts what is best for your cruising preferences, If you need a stiffer or softer ride try inserting a new set of springs. Remember coil windings as well as fork oil determine the cushion in your ride.

Posted on Mar 14, 2010

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1 Answer

How do you service and adjust the front fork suspension... Way stiff!!

Fork adjustment varies from bike to bike. Some have no adjustment at all, some have screws that you turn in and out, some are adjusted/aided by air. Some people change the weight (viscosity) of the fork oil, fit firmer or looser springs etc. Fork adjustment and settings depend on the riders size, handling and bike style so there really is no "stock setting, one size fits all".
What you consider way stiff may be ideal for me but too soft for someone else.
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I do not know but you could call a Harley Service department or better go there in person and ask.

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